Brother 484C User Manual

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KE-430B,430C, 431B, 431C

SERVICE MANUAL

KE-432B,432C, 433B

 

KE-434B,434C, 435B, 435C

 

KE-436B,436C, 484C

 

BE-438B,438C

 

Please read this manual before using the machine.

Please keep this manual within easy reach for quick reference.

ELECTRONIC LOCKSTITCH BAR TACKER ELECTRONIC LOCKSTITCH BELT LOOP BAR TACKER ELECTRONIC LOCKSTITCH PATTERN TACKER ELECTRONIC LOCKSTITCH BUTTON SEWER

This service manual is intended for KE-430Bseries,KE-430Cseries,BE-438B,BE-438C,KE-484C;be sure to read theKE-430Bseries,KE-430Cseries,BE-438B,BE-438C,KE-484Cinstruction manual before this manual.

Carefully read the “SAFETY INSTRUCTIONS” below and the whole of this manual to understand this product before you start maintenance.

As a result of research and improvements regarding this product, some details of this manual may not be the same as those for the product you purchased.

If you have any questions regarding this product, please contact a Brother dealer.

SAFETY INSTRUCTIONS

1. Safety indications and their meanings

This service manual and the indications and symbols that are used on the machine itself are provided in order to ensure safe operation of this machine and to prevent accidents and injury to yourself or other people.

The meanings of these indications and symbols are given below.

Indications

DANGER The instructions which follow this term indicate situations where failure to follow the instructions will almost certainly result in death or severe injury.

The instructions which follow this term indicate situations where failure to follow the CAUTION instructions could cause injury when using the machine or physical damage to equipment

and surroundings.

Symbols

This symbol ( ) indicates something that you should be careful of. The picture inside the triangle indicates the nature of the caution that must be taken.

(For example, the symbol at left means “beware of injury”.)

This symbol ( ) indicates something that youmust not do.

This symbol ( ) indicates something that you must do. The picture inside the circle indicates the nature of the thing that must be done.

(For example, the symbol at left means “you must make the ground connection”.)

i

KE-430B,430C series

2. Notes on safety

DANGER

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the face plate of the control box. Touching areas where high voltages are present can result in severe injury.

CAUTION

Environmental requirements

Use the sewing machine in an area which is free from sources of strong electrical noise such as high-frequencywelders.

Sources of strong electrical noise may cause problems with correct operation.

Any fluctuations in the power supply voltage should be within 10% of the rated voltage for the machine. Voltage fluctuations which are greater than this may cause problems with correct operation.

The power supply capacity should be greater than the requirements for the sewing machine’s electrical consumption.

Insufficient power supply capacity may cause problems with correct operation.

The pneumatic delivery capability should be greater than the requirements for the sewing machine’s total air consumption.

Insufficient pneumatic delivery capability may cause problems with correct operation.

The ambient temperature should be within the range of 5 C to 35 C during use.

Temperatures which are lower or higher than this may cause problems with correct operation.

The relative humidity should be within the range of 45% to 85% during use, and no dew formation should occur in any devices.

Excessively dry or humid environments and dew formation may cause problems with correct operation.

Avoid exposure to direct sunlight during use. Exposure to direct sunlight may cause problems with correct operation.

In the event of an electrical storm, turn off the power and disconnect the power cord from the wall outlet. Lightning may cause problems with correct operation.

Installation

Machine installation should only be carried out by a qualified technician.

Contact your Brother dealer or a qualified electrician for any electrical work that may need to be done.

The sewing machine weighs more than 52 kg. The installation should be carried out by two or more people.

Do not connect the power cord until installation is complete, otherwise the machine may operate if the foot switch is depressed by mistake, which could result in injury.

Hold the machine head with both hands when tilting it back or returning it to its original position. Furthermore, after tilting back the machine head, do not push the face plate side or the pulley side from above, as this could cause the machine head to topple over, which may result in personal injury or damage to the machine.

Be sure to connect the ground. If the ground connection is not secure, you run a high risk of receiving a serious electric shock, and problems with correct operation may also occur.

All cords should be secured at least 25 mm away from any moving parts. Furthermore, do not excessively bend the cords or secure them too firmly with staples, otherwise there is the danger that fire or electric shocks could occur.

Install the belt covers to the machine head and motor.

If using a work table which has casters, the casters should be secured in such a way so that they cannot move.

Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin, otherwise inflammation can result.

Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhoea.

Keep the oil out of the reach of children.

KE-430B,430C series

ii

CAUTION

Sewing

This sewing machine should only be used by opera-

If using a work table which has casters, the casters

tors who have received the necessary training in safe

should be secured in such a way so that they cannot

use beforehand.

move.

The sewing machine should not be used for any

Attach all safety devices before using the sewing

applications other than sewing.

machine. If the machine is used without these

Be sure to wear protective goggles when using the

devices attached, injury may result.

 

machine.

Do not touch any of the moving parts or press any

If goggles are not worn, there is the danger that if a

objects against the machine while sewing, as this

needle breaks, parts of the broken needle may enter

may result in personal injury or damage to the

your eyes and injury may result.

machine.

Set the needle to the needle up stop position before

If an error occurs in machine operation, or if abnormal

turning off the power.

noises or smells are noticed, immediately turn off the

If this is not done, the wiper may strike the needle,

power switch. Then contact your nearest Brother

which might cause the needle to break.

dealer or a qualified technician.

Turn off the power switch at the following times,

If the machine develops a problem, contact your

otherwise the machine may operate if the foot switch

nearest Brother dealer or a qualified technician.

is depressed by mistake, which could result in injury.

 

When threading the needle

 

When replacing the needle and bobbin

 

When not using the machine and when leaving the

 

machine unattended

 

Cleaning

Set the needle to the needle up stop position before

Be sure to wear protective goggles and gloves when

turning off the power.

 

 

handling the lubricating oil and grease, so that they

If this is not done, the wiper may strike the needle,

do not get into your eyes or onto your skin, otherwise

which might cause the needle to break.

 

inflammation can result.

Turn off the

power switch

before

carrying out

Furthermore, do not drink the oil or eat the grease un-

der any circumstances, as they can cause vomiting

cleaning, otherwise the machine may operate if the

and diarrhoea.

foot switch is

depressed by

mistake,

which could

Keep the oil out of the reach of children.

result in injury.

 

 

 

 

 

 

 

Maintenance and inspection

 

Maintenance and inspection of the sewing machine

If the power switch and air need to be left on when

 

should only be carried out by a qualified technician.

carrying out some adjustment, be extremely careful to

 

Ask your Brother dealer or a qualified electrician to

observe all safety precautions.

 

 

 

carry out any maintenance and inspection of the

Hold the machine head with both hands when tilting it

 

electrical system.

back or returning it to its original position.

 

Set the needle to the needle up stop position before

Furthermore, after tilting back the machine head, do

 

turning off the power.

not push the face plate side or the pulley side from

 

If this is not done, the wiper may strike the needle,

above, as this could cause the machine head to

 

which might cause the needle to break.

topple over, which may result in personal injury or

 

Turn off the power switch and disconnect the power

damage to the machine.

 

Use only the proper replacement parts as specified

 

cord from the wall outlet at the following times,

 

otherwise the machine may operate if the foot switch

by Brother.

 

is depressed by mistake, which could result in injury.

If any safety devices have been removed, be abso-

 

When carrying out inspection, adjustment and main-

lutely sure to re-installthem to their original positions

 

tenance

and check that they operate correctly before using

 

When replacing consumable parts such as the ro-

the machine.

 

tary hook

Any problems in machine operation which result from

 

Disconnect the air hoses from the air supply and wait

unauthorized modifications to the machine will not be

 

for the needle on the pressure gauge to drop to “0”

covered by the warranty.

 

before carrying out inspection, adjustment and repair

 

 

of any parts which use the pneumatic equipment.

 

 

 

iii

KE-430B,430C series

3. Warning labels

The following warning labels appear on the sewing machine.

Please follow the instructions on the labels at all times when using the machine. If the labels have been removed or are difficult to read, please contact your nearest Brother dealer.

1

2

Safety devices

Eye guard

Finger guard

3 High temperature warning displayThread take-up cover

Thread take-upsolenoid cover Belt cover

Frame side cover, etc.

4

5

Be sure to connect the ground. If the ground connection is not secure, you run a high risk of receiving a serious electric shock, and problems with correct operation may also occur.

Direction of operation

Thread take-upcover

Frame side cover

2670Q

Eye guard

 

 

 

Thread take-up

Belt cover

solenoid cover

 

 

 

 

Finger guard

 

 

 

 

 

 

 

KE-430B

KE-430C

 

2737Q

 

 

KE-430B,430C series

iv

CONTENTS

1. SPECIFICATIONS ...............................

1

1-1.

SPECIFICATIONS ...........................................

1

1-2.

Standard thread tension...................................

5

2. MECHANICAL DESCRIPTIONS .........

7

2-1.

Needle bar and thread take-up

 

 

mechanisms.....................................................

7

2-2.

Lower shaft and shuttle race mechanisms .......

9

2-3.

Work clamp lifter mechanism ...........................

10

2-4.

Work clamp open-closemechanism

 

 

(KE-432B,432C)..............................................

12

2-5.

Thread wiper mechanism.................................

13

2-6.

Feed mechanism .............................................

15

2-7.

Thread trimmer mechanism .............................

17

2-8.

Thread nipper mechanism ...............................

19

2-9.

Thread take-upmechanism .............................

21

3. DISASSEMBLY ...................................

22

3-1.

Covers..............................................................

22

3-2.

Work clamp arm mechanism

 

 

(KE-430B,430C, 431B, 431C).........................

24

3-3.

Work clamp arm mechanism

 

 

(KE-432B,432C)..............................................

25

3-4.

Work clamp arm mechanism (KE-433B) ..........

26

3-5.

Work clamp arm mechanism (KE-434B,434C,

 

 

435B, 435C, 436B, 436C, 484C)...........................

27

3-6.

Work clamp arm (BE-438B,438C) .....................

29

3-7.

Shuttle hook mechanism..................................

30

3-8.

Needle bar mechanism ....................................

31

3-9.

Stepping foot mechanism

 

 

(KE-435B,435C, 436B, 436C).........................

32

3-10.Upper shaft mechanism....................................

33

3-11.Lower shaft mechanism....................................

35

3-12.Feed mechanism (1).........................................

37

3-13.Feed mechanism (2).........................................

39

3-14.

Work clamp lifter mechanism

 

 

(Solenoid specifications) ..................................

41

3-15.Stepping foot lifter mechanism

 

 

(KE-435B,435C, 436B, 436C).........................

43

3-16.

Thread wiper mechanism..................................

44

3-17.

Thread nipper mechanism ................................

47

3-18.

Thread take-upmechanism ..............................

49

3-19.

Thread trimmer mechanism ..............................

51

4. ASSEMBLY.........................................

54

4-1.

Thread trimmer mechanism (1) ........................

54

4-2.

Thread nipper mechanism................................

56

4-3.

Thread wiper mechanism .................................

59

4-4.

Thread take-upmechanism..............................

62

4-5.

Work clamp lifter mechanism

 

 

(Solenoid specifications)...................................

65

4-6.

Feed mechanism (1).........................................

70

4-7.

Feed mechanism (2).........................................

74

4-8.

Upper shaft mechanism....................................

76

4-9.

Stepping foot lifter mechanism

 

 

(KE-435B,435C, 436B, 436C) .........................

79

4-10.

Stepping foot mechanism

 

 

(KE-435B,435C, 436B, 436C) .........................

80

4-11.

Needle bar mechanism.....................................

82

4-12.

Lower shaft mechanism....................................

83

4-13.

Thread trimmer mechanism (2) ........................

86

4-14.

Shuttle hook mechanism ..................................

87

4-15.

Work clamp arm mechanism

 

 

(KE-430B,430C, 431B, 431C) .........................

89

4-16.

Work clamp arm mechanism

 

 

(KE-432B,432C) ..............................................

90

4-17.Work clamp arm mechanism(KE-433B)...........

91

4-18.Work clamp arm mechanism(KE-434B,434C,

 

 

435B, 435C, 436B, 436C, 484C) ...........................

92

4-19.Work clamp arm mechanism

 

 

(BE-438B,438C) ..............................................

94

4-20.

Work clamp arm mechanism

 

 

(Applying grease) .............................................

95

4-21.

Covers ..............................................................

97

KE-430B,430C series

5. ADJUSTMENT.....................................

99

5-1.

Adjusting the needle bar height........................

99

5-2.

Adjusting the needle bar lift amount.................

100

5-3.

Adjusting the driver needle guard ....................

101

5-4.

Adjusting the needle clearance ........................

101

5-5.

Adjusting the shuttle race thread guide ............

102

5-6.

Adjusting the clearance between the shuttle

 

 

hook and bobbin case holder position bracket

 

 

(KE-484C) ........................................................

103

5-7.

Adjusting the work clamp lift amount

 

 

(KE-430B,430C, 431B, 431C, 433B) ..............

104

5-8.

Adjusting the work clamp lift amount

 

 

(KE-432B,432C)..............................................

104

5-9.

Adjusting the work clamp lift amount (KE-434B,

 

 

434C, 435B, 435C, 436B, 436C, 484C) ...........

105

5-10.

Adjusting the button clamp lift amount

 

 

(BE-438B,438C)..............................................

106

5-11.

Work clamp pressure adjustment

 

 

(KE-432B,432C)..............................................

107

5-12.Adjusting the holding pressure

 

 

(BE-438B,438C)..............................................

107

5-13.Work clampclosing-distanceadjustment

 

 

(KE-432B,432C)..............................................

108

5-14.Adjusting the position of the button holder

 

 

(BE-438B,438C)..............................................

109

5-15.Work clamp adjustment

 

 

(KE-435B,435C, 436B, 436C).........................

109

5-16.Changing the work clamp lift

 

 

(KE-435B,435C, 436B, 436C).........................

110

5-17.Adjusting the thread wiper ................................

111

5-18.Adjusting the threadtake-upamount................

114

5-19.Adjusting the movable knife..............................

116

5-20.Adjusting the position of the thread trimming

 

 

link mechanism ................................................

122

5-21.Adjusting the backlash......................................

123

5-22.Adjusting the presser solenoid position

 

 

(Solenoid specifications) ..................................

124

5-23.Adjusting the sensor perceive plate position

 

 

(Solenoid specifications) ..................................

125

5-24.Adjusting the home position..............................

126

5-25.Adjusting the needle up stop position ...............

129

5-26.Adjusting the tension of the upper shaft timing

 

belt ...................................................................

129

5-27.Checking the head position switch....................

130

5-28.Work clamp interchangeability

 

(KE-433B).......................................................

131

5-29.Work clamp interchangeability(KE-434B,

 

434C, 435B, 435C, 436B, 436C, 484C) ...........

131

5-30.Adjustment of air pressure (Pneumatic

 

specifications)...................................................

132

5-31.Adjustment of inner clamping device ................

132

6. TROUBLESHOOTING ........................

133

7. OPTIONAL PARTS .............................

136

8. ELECTRIC MECHANISM....................

138

8-1.Precautions at the time of adjustment.................

138

8-2.Components inside the control box and

 

the operation panel...........................................

138

8-3.Fuse explanation ................................................

139

8-4.Connectors .........................................................

140

8-5.Explanation of the DIP switches .........................

147

8-6.Explanation of the memory switches

 

(KE-430*,431*, 432*, 433B, 434*, 435*,

 

484C, BE-438*) ................................................

150

8-7.Explanation of the memory switches

 

(KE-436B,436C) ..............................................

155

8-8.Setting the work clamp mode..............................

159

8-9.Checking the input sensor and DIP switch

 

input..................................................................

161

8-10.Checking the input voltage................................

163

8-11.Clearing all memory settings.............................

164

8-12.Confirming software version .............................

165

8-13.Table of error codes..........................................

167

8-14.Troubleshooting ................................................

171

8-15.Control circuit block diagram.............................

190

KE-430B,430C series

1. SPECIFICATIONS

. SPECIFICATIONS

- .SPECIFICATIONS

 

1

Ordinary materials

 

2

 

Bar tacking length

 

 

 

1

 

 

Ordinary materials

 

5

 

 

6 -14mm

 

 

 

 

2

 

 

Denim

 

 

 

 

 

 

 

 

 

 

 

 

2

Denim

 

3

 

Bar tacking length

 

 

 

7

 

 

Knitted materials

 

7

Knitted materials

 

 

14 - 25 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KE-432B

 

 

 

 

 

 

 

 

KE-430B

 

KE-431B

 

 

 

KE-433B

 

 

 

 

 

 

 

Electronic lockstitch

 

 

Electronic lockstitch

 

 

 

Electronic lockstitch

 

Electronic lockstitch

 

 

 

 

 

 

 

 

eyelet buttonhole

 

 

decorative pattern

 

 

 

 

 

bar tacker

 

belt loop bar tacker

 

 

 

 

 

 

 

 

 

 

end bar tacker

 

 

tacker

 

 

 

 

 

 

 

 

 

 

 

 

 

Stitch formation

 

 

 

 

 

 

Single needle lock stitch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maximum sewing speed

 

 

 

 

 

2,700 rpm

 

 

 

 

 

2,500 rpm

 

 

 

 

 

 

 

 

 

Maximum pattern size

 

 

 

30 10 mm max.

 

12 3 mm max.

 

30 30 mm max.

 

 

 

 

 

 

 

Feed mechanism

 

 

 

R- intermittent feed mechanism (pulse-motordriven mechanism)

 

 

 

 

 

 

 

 

 

Stitch length

 

 

 

 

 

 

0.1 - 10.0 mm

 

 

 

 

 

 

 

 

 

 

Number of stitches

 

 

 

 

 

 

Variable

 

 

 

 

 

 

Maximum stitch number

 

 

 

20,000 stitches (including 10,000 stitches which can be added)

 

 

 

 

 

 

 

 

 

Work clamp lifter

 

 

 

 

 

 

Solenoid type

 

 

 

 

 

 

 

 

 

 

Work clamp height

 

 

 

 

 

 

17 mm max.

 

 

 

 

 

 

 

 

 

Rotary hook

 

 

 

 

 

Shuttle hook (shuttle hook 2, optional)

 

 

 

 

 

 

 

 

 

 

Wiper device

 

 

 

 

 

 

Standard equipment

 

 

 

 

 

 

 

 

 

 

Thread trimmer device

 

 

 

 

 

 

Standard equipment

 

 

 

 

 

 

 

 

 

 

Thread take-updevice

 

 

 

 

 

 

Standard equipment

 

 

 

 

 

 

Data storage method

 

 

 

P-ROM(Any sewing pattern can be added usingPS-3000.)

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of user programs

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of cycle programs

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

3 sewing patterns are

 

 

 

 

 

35 sewing patterns are

 

6 sewing patterns are

 

 

 

 

Number of stored data

 

 

set already

 

set already

 

set already

 

 

 

 

 

 

(Up to 100 patterns can be added. Total number of stitches of stored data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

which can be added is within 10,000.)

 

Motor

 

 

 

 

 

 

Three-phase400W induction motor

 

 

 

 

 

 

 

 

Machine head: 52 kg, Operation panel: 0.6 kg,

 

Weights

 

 

 

 

 

 

 

 

Control box: 9 - 19 kg (depending on destination)

 

 

 

 

 

 

 

 

Power source

 

 

 

 

 

Single-phase110, 220 - 230, 240V

 

 

 

 

 

 

 

3-phase220-230,380, 400V

 

 

 

 

 

 

 

 

Maximum electric power consumption; 600VA

 

1

KE-430B,430C series

1. SPECIFICATIONS

 

1

 

Medium materials

 

 

 

 

 

 

 

 

 

 

2

 

Heavy materials

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KE-436B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KE-434B

 

KE-435B

 

Electronic lockstitch

 

 

BE-438B

 

 

 

 

 

Electronic lockstitch

 

pattern tacker

 

 

 

 

 

 

Electronic lockstitch

 

 

 

 

Electronic lockstitch

 

 

 

 

 

pattern tacker

 

with stepping foot

 

 

 

 

 

 

pattern tacker

 

 

 

 

button sewer

 

 

 

 

 

with stepping foot

 

and programming

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

function

 

 

 

 

Stitch formation

 

 

Single needle lock stitch

 

 

 

 

 

 

 

 

 

 

 

 

Maximum sewing speed

 

 

2,500 rpm (Pitch 3 mm)

 

 

 

2,500 rpm

 

 

 

 

 

 

 

 

 

 

Maximum pattern size

 

 

100 60 mm max.

 

 

 

0 - 6.4 0 - 6.4 mm

 

 

 

 

 

 

 

 

Feed mechanism

R- intermittent feed mechanism (pulse-motordriven mechanism)

 

 

 

 

 

 

 

 

Stitch length

 

 

0.1 - 10.0 mm

 

 

 

 

 

 

 

 

 

 

Number of stitches

 

 

Variable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20,000 stitches (including 10,000 stitches

 

20,000 stitches

 

20,000 stitches

Maximum stitch number

 

 

(including 10,000

which can be added)

 

(One pattern)

 

stitches which can

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

be added)

Work clamp lifter

Solenoid type or

 

Pneumatic type

 

Solenoid type

pneumatic type

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Work clamp height

 

17 mm max. (for solenoid)

 

 

 

13 mm max.

25 mm max. (for pneumatic) (Max. 17 mm for inner clamping device)

 

 

 

 

 

 

 

 

Rotary hook

 

 

Shuttle hook (shuttle hook 2, optional)

 

 

Wiper device

 

 

Standard equipment

 

 

 

 

 

 

 

 

 

Thread trimmer device

 

 

Standard equipment

 

 

 

 

 

 

 

 

 

Thread take-updevice

 

 

Standard equipment

 

 

 

 

 

 

 

 

 

Stepping foot lift amount

 

 

18 mm

 

 

 

Stepping foot stroke

 

 

0 mm, 3 - 8 mm

 

 

 

Safety device

 

 

built-instopping mechanism

 

 

 

 

 

 

 

 

 

 

 

 

 

P-ROM(Any sewing

Data storage method

P-ROM(Any sewing pattern can be added

 

3.5 floppy disk

 

pattern can be

using PS-3000.)

 

2HD/1.44MB, 2DD

 

added using

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PS-3000.)

Number of user programs

 

16

 

 

 

 

16

 

 

 

 

 

 

 

 

 

 

Number of cycle programs

 

4

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

49 sewing patterns are

Number of stored data

 

(*)

 

 

 

 

set already

 

 

 

 

 

 

 

 

 

 

 

 

(*)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor

 

 

 

Three-phase400W induction motor

 

 

 

 

 

 

Machine head: 56 kg, Operation panel: 0.6 kg (2.8 kg: KE-436B),

Weights

 

 

 

Control box: 9 - 19 kg (depending on destination)

 

 

 

 

 

 

 

 

 

Power source

 

 

Single-phase110, 220 - 230, 240V

 

 

 

 

3-phase220-230,380, 400V

 

 

 

 

 

 

 

 

Maximum electric power consumption; 600VA

 

 

* Up to 100 patterns can be added. Total number of stitches of stored data which can be added is within 10,000.

KE-430B,430C series

2

1. SPECIFICATIONS

 

1

Ordinary materials

 

2

 

Bar tacking length

 

 

 

 

 

 

 

2

Denim

 

 

6 -14mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

Knitted materials

 

3

 

Bar tacking length

 

 

 

 

 

 

 

 

 

 

 

14 -25mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KE-432C

 

 

 

 

 

 

 

 

KE-430C

 

KE-431C

 

 

 

BE-438C

 

 

 

 

 

 

 

Electronic lockstitch

 

 

 

 

 

Electronic lockstitch

 

Electronic lockstitch

 

 

 

Electronic lockstitch

 

 

 

 

 

eyelet buttonhole

 

 

 

 

 

 

 

bar tacker

 

belt loop bar tacker

 

 

 

button sewer

 

 

 

 

 

 

 

end bar tacker

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stitch formation

 

 

 

 

 

 

Single needle lock stitch

 

 

 

 

 

 

 

 

 

 

 

 

 

Maximum sewing speed

 

 

 

 

 

2,700 rpm

 

 

 

 

2,500 rpm

 

 

 

 

 

 

 

 

 

Maximum pattern size

 

30 26 mm max.

 

30 10 mm max.

 

12 3 mm max.

 

0 - 6.4 0 - 6.4 mm

 

 

 

 

 

 

 

 

Feed mechanism

 

 

 

R- intermittent feed mechanism (pulse-motordriven mechanism)

 

 

 

 

 

 

 

 

 

Stitch length

 

 

 

 

 

 

0.1 - 10.0 mm

 

 

 

 

 

 

 

 

 

 

Number of stitches

 

 

 

 

 

 

Variable

 

 

 

 

 

 

Maximum stitch number

 

 

 

20,000 stitches (including 10,000 stitches which can be added)

 

 

 

 

 

 

 

 

 

Work clamp lifter

 

 

 

 

 

 

Solenoid type

 

 

 

 

 

 

 

 

 

 

 

 

 

Work clamp height

 

 

 

 

 

17 mm max.

 

 

 

 

13 mm max.

 

 

 

 

 

 

 

 

 

 

Rotary hook

 

 

 

 

 

Shuttle hook (shuttle hook 2, optional)

 

 

 

 

 

 

 

 

 

 

Wiper device

 

 

 

 

 

 

Standard equipment

 

 

 

 

 

 

 

 

 

 

Thread trimmer device

 

 

 

 

 

 

Standard equipment

 

 

 

 

 

 

 

 

 

 

Thread take-updevice

 

 

 

 

 

 

Standard equipment

 

 

 

 

 

 

Data storage method

 

 

 

P-ROM(Any sewing pattern can be added usingPS-3000.)

 

 

 

 

 

 

 

 

 

 

 

 

Number of user programs

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of cycle programs

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

3 sewing patterns are

 

 

 

 

 

61 sewing patterns are

 

6 sewing patterns are

 

 

 

49 sewing patterns are

Number of stored data

 

 

set already

 

set already

 

set already

 

 

set already

 

 

 

(Up to 100 patterns can be added. Total number of stitches of stored data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

which can be added is within 10,000.)

 

Motor

 

 

 

 

 

 

Three-phase400W induction motor

 

 

 

 

 

 

 

 

 

Machine head: 52 kg, Operation panel: 0.6 kg,

 

Weights

 

 

 

 

 

 

 

 

 

 

Control box: 9 - 19 kg (depending on destination)

 

 

 

 

 

 

 

 

 

Power source

 

 

 

 

 

Single-phase110, 220 - 230, 240V

 

 

 

 

 

 

 

3-phase220-230,380, 400V

 

 

 

 

 

 

 

 

 

Maximum electric power consumption; 600VA

 

3

KE-430B,430C series

1. SPECIFICATIONS

 

1

 

Medium materials

 

 

 

 

 

 

 

 

2

 

Heavy materials

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KE-436C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KE-434C

 

KE-435C

Electronic lockstitch

 

 

KE-484C

 

 

 

 

 

Electronic lockstitch

pattern tacker

 

 

Electronic lockstitch

 

 

 

 

Electronic lockstitch

 

 

 

 

 

 

 

 

pattern tacker

with stepping foot

 

 

pattern tacker

 

 

 

 

pattern tacker

 

 

 

 

 

 

 

 

with stepping foot

and programming

 

 

with treble hook

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

function

 

 

 

Stitch formation

 

 

Single needle lock stitch

 

 

 

 

 

 

 

 

 

 

 

 

Maximum sewing speed

 

 

2,500 rpm (Pitch 3 mm)

 

 

 

2,200 rpm

 

 

 

 

 

(Pitch 3 mm)

 

 

 

 

 

 

 

 

 

 

Maximum pattern size

 

 

100 60 mm max.

 

 

R- intermittent feed mechanism (pulse-motordriven mechanism)

Feed mechanism

 

 

 

 

 

 

 

Stitch length

 

 

0.1 - 10.0 mm

 

 

 

 

 

 

 

 

Number of stitches

 

 

Variable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20,000 stitches

Maximum stitch number

20,000 stitches (including 10,000 stitches

20,000 stitches

 

 

(including 10,000

which can be added)

(One pattern)

 

 

stitches which can

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

be added)

Work clamp lifter

Solenoid type or

 

 

Pneumatic type

 

pneumatic type

 

 

 

 

 

 

 

 

 

 

 

 

 

Work clamp height

17

mm max. (for solenoid), 25 mm max. (for pneumatic)

 

 

(Max. 17 mm for inner clamping device)

 

 

 

 

 

 

 

 

Rotary hook

Shuttle hook (shuttle hook 2, optional)

 

 

Treble hook

Wiper device

 

 

Standard equipment

 

 

 

 

 

 

 

 

Thread trimmer device

 

 

Standard equipment

 

 

 

 

 

 

 

 

Thread take-updevice

 

 

Standard equipment

 

 

 

 

 

 

 

 

Stepping foot lift amount

 

 

18 mm

 

 

Stepping foot stroke

 

 

0 mm, 3 - 8 mm

 

 

Safety device

 

 

built-instopping mechanism

 

 

 

 

 

P-ROM(Any sewing pattern can be added

3.5 floppy disk

 

P-ROM(Any sewing

Data storage method

 

pattern can be

using PS-3000.)

2HD/1.44MB, 2DD

 

added using

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PS-3000.)

Number of user programs

 

16

 

 

 

16

 

 

 

 

 

 

 

Number of cycle programs

 

4

 

 

 

4

 

 

 

 

 

 

 

Number of stored data

 

(*)

 

 

 

(*)

 

 

 

 

 

 

 

 

Motor

 

 

 

Three-phase400W induction motor

 

 

 

 

 

Machine head: 56 kg, Operation panel: 0.6 kg (2.8 kg: KE-436C),

Weights

 

 

 

Control box: 9 - 19 kg (depending on destination)

 

 

 

 

 

 

 

 

 

 

 

 

 

Single-phase110, 220 - 230, 240V

 

Power source

 

 

3-phase220-230,380, 400V

 

 

 

 

 

 

 

Maximum electric power consumption; 600VA

 

* Up to 100 patterns can be added. Total number of stitches of stored data which can be added is within 10,000.

KE-430B,430C series

4

1. SPECIFICATIONS

- .Standard thread tension

[KE-430B,430C, 431B, 431C, 432B, 432C, 433B, 434B, 434C, 435B, 435C, 436B, 436C]

 

Medium materials

 

Heavy materials (Denim)

Knitted materials

Use

(Ordinary materials)

 

 

 

 

 

 

 

 

Standard hook

 

Large hook

 

Standard hook

Large hook

Standard hook

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Upper thread

#50 or

 

 

#30 or

 

#60 or equivalent

equivalent

 

 

equivalent

 

 

 

 

 

 

 

 

 

 

Lower thread

#60 or

 

 

#50 or

 

#80 or equivalent

equivalent

 

 

equivalent

 

 

 

 

 

 

 

 

 

 

Upper thread tension

0.8 - 1.2

 

1.0 - 1.3

 

1.2 - 1.6

 

 

1.4 - 1.8

 

0.8 - 1.2

(N)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lower thread tension

0.2 - 0.3

 

 

0.2 - 0.3

 

 

0.25 - 0.3

(N)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thread take-up

 

 

 

 

 

 

 

 

 

 

 

spring height

6 - 8

 

 

6 - 8

 

 

6 - 8

(mm)

 

 

 

 

 

 

 

 

 

 

 

Thread take-up

 

 

 

 

 

 

 

 

 

 

 

spring tension

0.3 - 0.4

 

 

0.5 - 0.6

 

 

0.3 - 0.4

(N)

 

 

 

 

 

 

 

 

 

 

 

Pre-tension(N)

0.5 - 0.8

 

 

0.3 - 0.5

 

 

0.5 - 0.8

Needle

DP×5 14

 

 

DP×17NY 19

DP×5 9

[BE-438B,438C,KE-484C]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Model

BE-438B

 

 

 

BE-438C

 

 

KE-484C

 

 

 

 

 

 

 

 

 

Needle

TQ×1 12

 

 

TQ×1 12

 

DP×17NY 12

 

DP×17 25

Upper thread

#60 or equivalent

 

 

#60 or equivalent

 

#4 or equivalent

 

 

 

 

 

 

 

Lower thread

#60 or equivalent

 

 

#60 or equivalent

 

#4 or equivalent

 

 

 

 

 

 

 

 

 

 

 

 

Upper thread tension

0.7 - 1.3

 

 

 

0.7 - 1.3

 

 

0.7 - 1.5

 

4.5 - 5.0

(N)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lower thread tension

0.3 - 0.4

 

 

 

0.3 - 0.4

 

 

1.0 - 1.2

(N)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thread take-up

 

 

 

 

 

 

 

 

 

 

 

spring height

6 - 8

 

 

 

6 - 8

 

 

 

0 - 5

(mm)

 

 

 

 

 

 

 

 

 

 

 

Thread take-up

 

 

 

 

 

 

 

 

 

 

 

spring tension

0.4 - 0.6

 

 

 

0.4 - 0.6

 

 

2.0 - 2.5

(N)

 

 

 

 

 

 

 

 

 

 

 

Pre-tension(N)

0.1 - 0.3

 

 

 

0.1 - 0.3

 

 

0.05 - 0.3

 

0.3 - 0.5

5

KE-430B,430C series

1. SPECIFICATIONS

- - .Measuring tension

Upper thread tension

Lower thread tension

3564Q

 

3565Q

Thread take-upspring height

 

Thread take-upspring tension

 

 

1–2mm

 

Measure the value when the thread take-up

 

3566Q

spring starts to extend.

3567Q

*When the spring height (stroke) is great or the spring tension is insufficient, it may cause the thread end length to vary after thread trimming.

KE-430B,430C series

6

2. MECHANICAL DESCRIPTIONS

. MECHANICAL DESCRIPTIONS

The mechanisms operate in the order of the numbers given in the illustrations.

- .Needle bar and threadtake-upmechanisms

With stepping foot

 

1. Pulley

<3> Stepping foot connecting rod

2. Upper shaft

<4> Stepping foot arm

3. Thread take-upcrank

<5> Stepping link assy

4. Needle bar crank

<6> Presser bar lifter

5. Needle bar connecting rod

<7> Stepping foot

6. Needle bar clamp

 

7. Needle bar

3240Q

7

KE-430B,430C series

2. MECHANICAL DESCRIPTIONS

KE-484C

1. Pulley

2. Upper shaft

3. Thread take-upcrank

4. Needle bar crank

5. Needle bar connecting rod

6. Needle bar clamp

7. Needle bar

3241Q

KE-430B,430C series

8

2. MECHANICAL DESCRIPTIONS

- .Lower shaft and shuttle race mechanisms

 

1. Pulley

 

2. Upper shaft

 

3. Crank rod assy

 

4. Rock gear

 

5. Lower gear

 

6. Lower shaft

 

7. Driver

3242Q

8. Shuttle hook

KE-484C

1.Pulley

2.Upper shaft

3.Timing pulley

4.Timing belt

5.Tension pulley arm

6.Lower shaft timing pulley

7.Lower shaft

8.Lower gear

9.Rotary hook shaft 10.Treble hook assy

3243Q

9

KE-430B,430C series

2. MECHANICAL DESCRIPTIONS

- .Work clamp lifter mechanism

3244Q

1.Work clamp solenoid

2.Plunger

3.Link assy, C

4.Link shaft, B

5.Link, B

6.Link shaft, C

7.Work clamp plate

8.Work clamp arm lever plate

9.Work clamp arm lever shaft 10.Work clamp arm lever 11.Work clamp

*When the presser solenoid is turned off, the presser plate rises, and work clamps lower.

 

 

 

 

 

 

 

 

 

 

 

 

 

KE-432B,432C

 

 

 

 

 

BE-438B,438C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7.

Work clamp lifting rod

7.

Work clamp lifting rod

8.

Work clamp lifter lever

8.

Button clamp lifting lever

9.

Presser adjusting plate assy

9.

Button clamp holder hook assy

10.

Button clamp holder shaft

10.

Button clamp holder shaft

11.

Work clamp

11.

Button clamp

3266Q

 

 

 

 

 

 

 

 

3267Q

KE-430B,430C series

10

2. MECHANICAL DESCRIPTIONS

3245Q

Pneumatic specifications

1. Air cylinder

2. Work clamp arm lever shaft

3. Work clamp arm lever

4. Work clamp

11

KE-430B,430C series

2. MECHANICAL DESCRIPTIONS

- .Work clampopen-closemechanism(KE-432B,432C)

1. Solenoid assy

2. OY solenoid pin

3. Sensor plate

3262Q 4. Work clamp carrier rod assy

5. Lever

6. Roller

7. Work clamp carrier plate

8. Work clamp guide plate

9. Screw 10.Work clamp

KE-430B,430C series

12

2. MECHANICAL DESCRIPTIONS

- .Thread wiper mechanism

3246Q

When the presser solenoid is turned off, the presser plate rises, and thread wiper operates in the opposite direction.

1. Work clamp solenoid

2. Plunger

3. Link assy, C

4. Link shaft, B

5. Thread wiper driving lever

6. Thread wiper rod assy

7. Thread wiper arm assy

8. Thread wiper

Solenoid type thread wiper

3247Q

 

1. Thread wiper solenoid

2. Thread wiper connecting rod assy

3. Thread wiper arm assy

4. Thread wiper

13

KE-430B,430C series

2. MECHANICAL DESCRIPTIONS

Stepping foot specifications

1. Thread wiper solenoid

2. Thread wiper connecting rod assy

3. Thread wiper arm assy

4. Thread wiper

3248Q

KE-484C

1. Thread wiper cylinder

2. Thread wiper connecting rod lever

3. Thread wiper connecting rod

4. Thread wiper arm assy

5. Thread wiper

3249Q

KE-430B,430C series

14

2. MECHANICAL DESCRIPTIONS

- .Feed mechanism

Sewing patterns are created through combinations of X and Y movements.

KE-430B,431B, 432B, 433B,BE-438B

KE-430C,431C, 432C,BE-438C

X direction

3250Q

Y direction

3251Q

1.Pulse motor, X

2.Coupling hub, 6.35

3.Coupling spacer

4.Coupling hub, 8

5.Feed cam, X

6.Feed cam roller

7.X-feedlever

8.Tack length regulator block assy

9.Feed bracket

1.Pulse motor, Y

2.Coupling hub, 6.35

3.Coupling spacer

4.Coupling hub, 8

5.Feed cam, Y

6.Feed cam roller

7.Y-feedlever

8.Tack width feed shaft

9.Feed bracket

15

KE-430B,430C series

2. MECHANICAL DESCRIPTIONS

KE-434B,435B, 436B

KE-434C,435C, 436C, 484C

X direction

3252Q

Y direction

3253Q

1.Pulse motor, X

2.Coupling hub, 8

3.Coupling spacer

4.Coupling hub, 8

5.Feed cam, X

6.Feed cam roller

7.X-feedlever

8.Tack length regulator block assy

9.Feed bracket

1.Pulse motor, Y

2.Coupling hub, 8

3.Coupling spacer

4.Coupling hub, 8

5.Feed cam, Y

6.Feed cam roller

7.Y-feedlever

8.Tack width regulator block assy

9.Feed bracket

KE-430B,430C series

16

2. MECHANICAL DESCRIPTIONS

- .Thread trimmer mechanism

1. Thread trimmer solenoid

2. Driving lever push lever

3. Thread driving lever

3254Q 4. Thread trimmer roller

5. Thread trimmer cam

6. Thread trimmer rod

7. Thread trimmer lever

8. Connecting rod lever assy

9. Thread trimmer connecting rod

10. Movable knife

11. Fixed knife

17

KE-430B,430C series

2. MECHANICAL DESCRIPTIONS

KE-484C

1. Thread trimmer solenoid

2. Driving lever push lever

3. Thread driving lever

4. Thread trimmer roller

5. Thread trimmer cam

6. Thread trimmer rod

7. Thread trimmer lever

8. Thread trimmer rod, L

9. Thread trimmer connecting rod

10. Movable knife

11. Thread trimmer cylinder

12. Extension rod

13. Fixed knife

3255Q

KE-430B,430C series

18

2. MECHANICAL DESCRIPTIONS

- .Thread nipper mechanism

Manual operation

1. Lifting lever

2. Lifting crank

3. Tension release lever

4. Tension release stud

5. Tension release pin

3256Q

In thread trimming

3257Q

1. Thread trimmer solenoid

7.

Tension release driving lever

2. Driving lever push lever

8.

Tension release lever, U

3. Thread driving lever

9.

Tension release rod assy

4. Tension release driving lever

10.

Tension release lever

5. Lower thread retainer collar

11.

Tension release stud

6. Thread trimmer cam

12.

Tension release pin

19

KE-430B,430C series

2. MECHANICAL DESCRIPTIONS

KE-484C

1. Tension release cylinder

2. Tension release pin push lever

3. Tension release pin, L

4. Tension release pin

3258Q

KE-430B,430C series

20

2. MECHANICAL DESCRIPTIONS

- .Threadtake-upmechanism

3259Q

Stepping foot specifications

1. Thread take-upsolenoid

2. Solenoid joint

3. Thread take-uplever crank

4. Thread take-uplever

3260Q

3261Q

KE-484C

1. Thread take-upcylinder

2. Thread take-uplever

21

KE-430B,430C series

3. DISASSEMBLY

. DISASSEMBLY

CAUTION

Disassembly should only be carried out by a qualified technician.

Turn off the power switch before disassembly, otherwise the machine may operate if the foot switch is depressed by mistake, which could result in injury.

Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin, otherwise inflammation can result.

Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhea.

Keep the oil out of the reach of children.

Disassemble each part in order of the numbers.

- . Covers

KE-430B,431B, 432B, 433B,BE-438BKE-430C,431C, 432C,BE-438C

Disconnect the air hoses from the air supply and wait for the needle on the pressure gauge to drop to “0” before disassembly of any parts which use the pneumatic equipment.

Use only the proper replacement parts as specified by Brother.

If any safety devices have been removed, be absolutely sure to re-installthem to their original positions and check that they operate correctly before using the machine.

Any problems in machine operation which result from unauthorized modifications to the machine will not be covered by the warranty.

3269Q

1. Top cover

2. Belt cover

3. Frame side cover

4. Bed cover, LF

5. Bed cover, LR

6. Bed cover, R

7. Eye guard assy

8. Face plate assy

9. Shuttle race cover assy

3268Q

KE-430B,430C series

22

3. DISASSEMBLY

KE-434B,435B, 436BKE-434C,435C, 436C, 484C

<KE-435B,435C><KE-436B,436C>

3269Q

3270Q

1.Top cover

2.Belt cover

3.Frame side cover

4.Bed cover, LF

5.Bed cover, LR

6.Bed cover, R

7.Eye guard assy

8.Bolts [2 pcs]

9.Face plate assy

10.Shuttle race cover assy

11.Auxiliary plate supports [2 pcs]

12.Needle plate auxiliary plate

13.Auxiliary plate supports [4 pcs]

23

KE-430B,430C series

3. DISASSEMBLY

- .Work clamp arm mechanism(KE-430B,430C, 431B, 431C)

1.Set screw

2.Needle

3.Needle bar thread guide

4.Bolts [2 pcs]

5.Work clamp arm assy

6.Work clamp felt

7.Screws [2 pcs]

8.Feed plate

Be careful not to drop these three bearing balls when removing the work clamp arm assembly.

3271Q

Be careful not to drop these two bearing balls when removing the feed bracket assembly.

9.Rubber cap

10.Set screw [Loosen]

11.Tack width feed shaft

12.Rod end

13.Screws [8 pcs]

14.Feed bracket guide plate

15.Feed bracket assy

16.Flat screws [2 pcs]

17.Screws [2 pcs]

18.Needle plate

Remove the feed bracket guide plate and the feed bracket assembly together as a single unit.

3272Q

KE-430B,430C series

24

3. DISASSEMBLY

- .Work clamp arm mechanism(KE-432B,432C)

3273Q

Be careful not to drop these two bearing balls when removing the feed bracket assembly.

Remove the feed bracket guide plate and the feed bracket assembly together as a single unit.

1. Set screw

 

 

 

 

3274Q

7.

Button clamp holder shaft

16.

Tack width feed shaft

2. Needle

8.

Work clamp arm assy

17.

Rod end

3. Needle bar thread guide

9.

Bolts [2 pcs]

18.

Screws [8 pcs]

4. Bolt

10.

Button clamp holder support

19.

Feed bracket guide plate

5. Nuts [2 pcs]

11.

Work clamp felt

20.

Feed bracket assy

Adjusting screw

12.

Screws [2 pcs]

21.

Flat screws [2 pcs]

Compression spring

13.

Feed plate

22.

Screws [2 pcs]

[Push upward and remove horizontally]

14.

Rubber cap

23.

Needle plate

6. Set screws [2 pcs: Loosen]

15.

Set screw [Loosen]

 

 

25

KE-430B,430C series

3. DISASSEMBLY

- .Work clamp arm mechanism(KE-433B)

Be careful not to drop these three bearing balls when removing the work clamp arm assembly.

3275Q

9.Rubber cap

10.Set screw [Loosen]

11.Tack width feed shaft

12.Screws [8 pcs]

13.Feed bracket guide plate [Pull upward]

14.Screw

15.Cover support stand

16.Feed bracket cover

17.Set screw [Loosen]

18.Tack length regulator block [Pull out]

19.Feed bracket guide shaft assy

20.Retainer assys [2 pcs]

21.Spacers [2 pcs]

22.Feed bracket assy

23.X feed cover

24.Y feed cover

25.Flat screws [2 pcs]

26.Screws [2 pcs]

27.Needle plate

1.Set screw

2.Needle

3.Needle bar thread guide

4.Bolts [2 pcs]

5.Work clamp arm assy

6.Work clamp felt

7.Bolts [2 pcs]

8.Feed plate

Remove the feed bracket guide plate as a single assembly with the feed bracket and other parts still assembled.

Be careful not to drop the two bearing balls when removing the feed bracket guide shaft assembly.

3276Q

KE-430B,430C series

26

3. DISASSEMBLY

- .Work clamp arm mechanism(KE-434B,434C, 435B, 435C, 436B, 436C, 484C)

KE-434B,434C Solenoid specification

 

1. Set screw

 

2. Needle

 

3. Needle bar thread guide

 

4. Bolts [2 pcs: pneumatic spec. only]

 

5. Cylinder support

 

[pneumatic spec. only]

 

6. Bolts [2 pcs]

 

7. Work clamp arm assy

 

8. Bolts [2 pcs]

3277Q

9. Feed plate

10. Feed bracket cover

 

27

KE-430B,430C series

3. DISASSEMBLY

Tack width regulator block assy

Y-feedlever

3279Q

11.Rubber cap

12.Set screw [Loosen]

13.Tack length regulator block assy

14.Retainer assys [2 pcs]

15.Spacers [2 pcs]

16.Screws [2 pcs]

17.Flat screws [2 pcs]

18.Feed bracket guide plate, R

19.Feed bracket assy

20.X-feedlever cover

21.Flat screws [2 pcs]

22.Screws [2 pcs]

23.Needle plate

3278Q

1)Turn the Y-feedlever forward as far as it will go.

2)Lift up feed bracket guide plate R and the feed bracket assembly together, remove the tack width regulator block assembly from the Y-feedlever, and pull all of them forward to remove them.

KE-430B,430C series

28

3. DISASSEMBLY

- .Work clamp arm mechanism(BE-438B,438C)

3280Q

Be careful not to drop these two bearing balls when removing the feed bracket assembly.

3281Q

Remove the feed bracket guide plate and the feed bracket assembly together as a single unit.

1. Set screw

7.

Button clamp holder

15.

Tack width feed shaft

2. Needle

8.

Bolts [2 pcs]

16.

Rod end

3. Needle bar thread guide

9.

Button clamp holder support

17.

Screws [8 pcs]

4. Nuts [2 pcs]

10.

Work clamp felt

18.

Feed bracket guide plate

Adjusting screw

11.

Screws [2 pcs]

19.

Feed bracket assy

Compression spring

12.

Feed plate

20.

Flat screws [2 pcs]

[Push upward and remove horizontally]

13.

Rubber cap

21.

Screws [2 pcs]

5. Set screws [2 pcs: Loosen]

14.

Set screw [Loosen]

22.

Needle plate

6. Button clamp holder shaft

 

 

 

 

 

29

KE-430B,430C series

3. DISASSEMBLY

- .Shuttle hook mechanism

3282Q

1. Bobbin case assy

2. Shuttle race base setting claw [Open to right and left]

3. Shuttle race base

4. Shuttle hook

3283Q

KE-484C

1. Bobbin case assy

2. Screw

3. Hook stopper setting base

4. Set screw [Loosen]

5. Treble hook assy

KE-430B,430C series

30

3. DISASSEMBLY

- .Needle bar mechanism

3285Q

3284Q

3286Q

Do not remove the needle bar guide if possible to prevent the machine from overheating due to needle bar rubbing.

1.Rubber cap

2.Screw

3.Needle bar

4.Slide block

5.Needle bar clamp [Pull out]

6.Rubber cap

7.Set screw [Loosen]

8.Wick

[Pull out from arm]

9.Thread take-upsupport shaft

10.Thread take-upsupport

11.Oil cap

12.Set screw [Loosen]

13.Set screw [Loosen]

14.Needle bar connecting rod

15.Needle bearing

16.Thread take-uplever

17.Rubber caps [2 pcs]

18.Screws [2 pcs]

19.Needle bar guide

31

KE-430B,430C series

3. DISASSEMBLY

- .Stepping foot mechanism(KE-435B,435C, 436B, 436C)

Note:

Remove the presser adjusting screw gently, as the presser bar spring guide and the presser bar spring may fly out at this time.

Remove the stepping link assembly and the presser bar lifter together as a single unit.

1. Screw

2. Finger guard

3. Presser foot

4. Presser adjusting screw

5. Presser bar spring guide

6. Presser bar spring

3287Q 7. Washer

8. Screw [Loosen]

9. Presser bar clamp

10. Cushion

11. Presser bar

12. Screws [2 pcs]

13. Stepping link assy

14. Presser bar lifter

15. Nut

16. Feed lifter lever shaft

17. Bolt [Loosen]

18. Stepping foot arm, R

19. Stepping foot arm, F [Pull out]

KE-430B,430C series

32

3. DISASSEMBLY

- .Upper shaft mechanism

3288Q

<KE-435B,435C><KE-436B,436C>

1. Screw [Loosen]

2. Set screw [Loosen]

3. Thread take-upcrank

4. Screws [2 pcs]

5. Thread trimmer solenoid

6. Screw

7. Wick support

8. Screws [2 pcs]

9. Crank rod (Upper part)

10. Crank rod (Lower part) [Lower downward

11. Set screws [2 pcs: Loosen] <11> Set screws [2 pcs: Loosen] 12. Set screws [2 pcs: Loosen] 13. Motor connector

14. Nut [Loosen]

15. Bolt [Loosen]

16. Bolts [3 pcs]

17. Motor bracket

18. Upper shaft timing belt

19. Set screws [2 pcs: Loosen]

20. Timing pulley assy, U

21. Screws [2 pcs]

3289Q 22. Synchronizer assy

23. Upper shaft

24. Thrust washer

25. Bobbin winder pulley

<25> Stepping foot connecting rod 26. Thread trimmer cam

33

KE-430B,430C series

3. DISASSEMBLY

3290Q

KE-484C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3291Q

1. Screw [Loosen]

13.

Nuts [2 pcs: Loosen]

25.

Upper shaft timing belt

2. Set screw [Loosen]

14.

Adjusting screw [Loosen]

26.

Set screws [2 pcs: Loosen]

3. Thread take-upcrank

15.

Adjusting screw [Loosen]

27.

Timing pulley assy, U

4. Screws [2 pcs]

16.

Tension pulley arm

28.

Screws [2 pcs]

5. Thread trimmer solenoid

17.

Set screws [2 pcs: Loosen]

29.

Synchronizer assy

6. Belt cover support pillars [2 pcs]

18.

Set screws [2 pcs: Loosen]

30.

Upper shaft

7. Screws [4 pcs]

19.

Set screws [2 pcs: Loosen]

31.

Thrust washer

8. Blind plate

20.

Motor connector

32.

Bobbin winder pulley

9. Frame side cover

21.

Nut [Loosen]

33.

Thread trimmer cam

10. Setting plate packing

22.

Bolt [Loosen]

34.

U-timingpulley, F

11. Nut

23.

Bolts [3 pcs]

35.

U-timingbelt, F

12. Plain washer

24.

Motor bracket

 

 

 

 

KE-430B,430C series

34

3. DISASSEMBLY

- .Lower shaft mechanism

Tilt the machine head.

3292Q

KE-430Cseries

BE-438C

KE-430Bseries

BE-438B

Remove the rock gear and the crank rod together as a single unit.

3293Q

1.Support [Turn in the direction of the arrow]

2.Felt holder

3.Bolt [Loosen]

4.Driver

5.Retaining ring

6.Set screws [2 pcs: Loosen]

7.Lower shaft assy

[Pull out from the rear of the machine]

8.Set screw collar

9.Set screws [2 pcs: Loosen]

10.Wick [Untie the knot]

11.Set screws [2 pcs: Loosen]

12.Rock gear shaft

[Pull out from the rear of the machine]

13.Set screw collar

14.Rock gear

15.Crank rod (Lower part)

35

KE-430B,430C series

3. DISASSEMBLY

3294Q

KE-484C

Tilt the machine head.

Note:

This part consists of three smaller parts which should not be disassembled.

1. Set screw [Loosen]

2. Lower gear

3. Set screws [2 pcs: Loosen]

4. Rotary hook shaft

5. Set screw collar

6. Lower shaft gear spacer

7. Thrust bearing

8. Set screw [Loosen]

9. Wick [Untie the knot]

10. Lower shaft

[Pull out from the rear of the machine] 11. Lower shaft timing pulley

12. U-timingbelt, F

3295Q

KE-430B,430C series

36

3. DISASSEMBLY

- .Feed mechanism (1)

KE-430B,431B, 432B, 433B,BE-438B

KE-430C,431C, 432C,BE-438C

Tilt the machine head.

Return the machine head to its original position.

3296Q

If the tack width feed lever shaft cannot be removed, remove the retaining ring.

Retaining

ring

3297Q

Oil supply hole

3298Q

1.Set screws [2 pcs: Loosen]

2.Set screw collar

3.Set screw [Loosen]

4.Tack width feed lever shaft (with retaining ring) [Pull upward]

5.Thrust washer

6.Wicks [3 pcs: Pull out from oil supply hole]

7.Y-feedlever assy [Pull upward]

8.Thrust washer

9.X-feedlever assy [Pull upward]

10.Screw

11.Home sensor setting plate

12.Screw

13.Cord holder

14.Screw

15.Home sensor setting plate

16.Screw

17.Cord holder

37

KE-430B,430C series

3. DISASSEMBLY

KE-434B,435B, 436B

KE-434C,435C, 436C, 484C

Tilt the machine head.

Return the machine head to its original position.

3296Q

If the tack width feed lever shaft cannot be removed, remove the retaining ring.

Oil supply hole

3300Q

Retaining

ring

3299Q

1.Set screws [2 pcs: Loosen]

2.Set screw collar

3.Set screw [Loosen]

4.Tack width feed lever shaft (with retaining ring) [Pull upward]

5.Thrust washer

6.Wicks [3 pcs: Pull out from oil supply hole]

7.Y-feedlever assy [Pull upward]

8.Thrust washer

9.X-feedlever assy [Pull upward]

10.Screw

11.Y-sensorsetting plate

12.Screw

13.X-sensorsetting base

14.Screws [3 pcs]

15.Cord clamps [3 pcs]

KE-430B,430C series

38

3. DISASSEMBLY

- .Feed mechanism (2)

KE-430B,431B, 432B, 433B,BE-438BKE-430C,431C, 432C,BE-438C

Same for both

X and Y

3302Q

3301Q

1.Bolts [4 pcs]

2.Pulse motor assy, X [Disconnect the harness]

3.Bolts [4 pcs]

4.Pulse motor assy, Y [Disconnect the harness]

5.Coupling spacer

6.Set screws [2 pcs: Loosen]

7.Coupling hub, 6.35

8.Screws [2 pcs]

9.Feed cam bracket

10.Positioning pins [2 pcs]

11.Screw

12.Feed home position dog

13.Set screws [2 pcs: Loosen]

14.Coupling hub, 8

15.Set screws [2 pcs: Loosen]

16.Cam shaft

17.Ball bearings [2 pcs]

18.Feed cam

39

KE-430B,430C series

3. DISASSEMBLY

KE-434B,435B, 436B

KE-434C,435C, 436C, 484C

3303Q

 

 

 

 

3304Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1. Bolts [4 pcs]

13.

Positioning pins [2 pcs]

 

2. Pulse motor assy, X [Disconnect the harness]

14.

Set screws [2 pcs: Loosen]

 

3. PM bracket, X

15.

Coupling hub, 8

 

4. Ball bearing

16.

Coupling spacer

 

5. Bolts [4 pcs] [3 pcs: KE-484C]

17.

Set screws [2 pcs: Loosen]

 

6. Pulse motor assy, Y [Disconnect the harness]

18.

Feed cam

 

7. Set screws [2 pcs: Loosen]

19.

Ball bearing [X side only]

 

8. Set screw collar

20.

Ball bearing

 

9. PM bracket, Y

21.

Cam shaft

 

10. Ball bearing

22.

Set screws [2 pcs: Loosen]

 

11. Screws [2 pcs]

23.

Coupling hub, 8

 

12. Y-feedcam bracket

 

 

 

 

KE-430B,430C series

40

3. DISASSEMBLY

- .Work clamp lifter mechanism (Solenoid specifications)

KE-430B,431B, 433B, 434B

KE-430C,431C, 434C

1. Springs [2 pcs]

2. Screws [2 pcs]

3. Guide

4. Snap pins [2 pcs]

5. Rubber cap

6. Link shaft, D [Pull out]

7. Set screws [2 pcs: Loosen]

8. Snap pins [2 pcs]

9. Link shaft, A [Pull out]

10. Washers [2 pcs]

Be careful not to drop.

3305Q

3306Q

11.Oil cap

12.Snap pin

13.Link shaft, C [Pull out]

14.Work clamp plate

15.Work clamp lifter link-relatedparts

16.Rubber caps [2 pcs]

17.Screws [2 pcs]

18.Screws [4 pcs]

19.Presser solenoid assy [Disconnect the harness]

Note:

Hold the work clamp plate when removing link shaft C, otherwise the work clamp plate may fall down.

3307Q

<KE-433B,434B, 434C>

Do not remove, otherwise the work clamp will not move smoothly.

41

KE-430B,430C series

3. DISASSEMBLY

KE-432,432C

BE-438,438C

3308Q

11.Oil cap

12.Snap pin

13.Link shaft, C [Pull out]

14.Presser lifter link-relatedparts

15.Set screw [Loosen]

16.Button clamp lever shaft [Pull out]

17.Work clamp lifter lever

[KE-432B,432C] Button clamp lifting lever[BE-438B,438C]

18.Retaining ring [BE-438B,438C]

19.Work clamp lifting rod

[Pull downward]

20.Rubber caps [2 pcs]

21.Screws [2 pcs]

22.Screws [4 pcs]

23.Presser solenoid assy [Disconnect the harness]

1.Springs [2 pcs]

2.Screws [2 pcs]

3.Guide

4.Snap pins [2 pcs]

5.Rubber cap

6.Link shaft, D [Pull out]

7.Set screws [2 pcs: Loosen]

8.Snap pins [2 pcs]

9.Link shaft, A [Pull out]

10.Washers [2 pcs]

Be careful not to drop.

3309Q

<BE-438B,438C>

KE-430B,430C series

42

3. DISASSEMBLY

- .Stepping foot lifter mechanism(KE-435B,435C, 436B, 436C)

3310Q

1. Retaining ring

2. Plain washer

3. Screws [4 pcs]

4. Air cylinder setting plate

[Pull upward after disconnecting the air tubes]

43

KE-430B,430C series

3. DISASSEMBLY

- .Thread wiper mechanism

Solenoid specifications

3312Q

Work clamp lever lifter shaft

Remove the thread wiper rod assembly from the work clamp lever lifter shaft, and then lift it up together with the thread wiper driving lever to remove them.

3311Q

1.Screw

2.Plain washer

3.Thread wiper

4.Retaining ring

5.Set screw [Loosen]

6.Thread wiper arm assy [Pull downward]

7.Set screw [Loosen]

8.Thread wiper shaft

9.Retaining ring

10.Tension release lever spring

11.Retaining ring

12.Thread wiper rod assy

13.Thread wiper driving lever

KE-430B,430C series

44

3. DISASSEMBLY

Pneumatic specifications

3313Q

1. Screw with washer

2. Lifting lever

3. Plunger pin

4. Bolts [2 pcs]

5. Solenoid box assy [Disconnect the harness]

6. Screws [2 pcs]

7. Thread wiper connecting rod assy

8. Set screw [Loosen]

9. Thread wiper arm assy [Pull downward]

45

KE-430B,430C series

3. DISASSEMBLY

Stepping foot specifications

3314Q

1. Plunger pin

2. Bolts [2 pcs]

3. Solenoid box assy [Disconnect the harness]

4. Set screw [Loosen]

5. Thread wiper connecting rod assy

KE-484C

3315Q

1. Screw

2. Bolts with washers [2 pcs]

3. Bolts [2 pcs]

4. Cylinder box [Disconnect the harness]

5. Set screw [Loosen]

6. Thread wiper connecting rod

KE-430B,430C series

46

3. DISASSEMBLY

- .Thread nipper mechanism

3316Q

1. Set screw

10.

Work clamp lever lifter shaft

2. Thread tension assy [Pull out]

11.

Collar

3. Tension release pin

12.

Tension release lever

4. Tension release stud

13.

Screw with washer

5. Shoulder screw

14.

Lifting lever

6. Shoulder screw

15.

Screw [KE-434B,434C Pneumatic spec.]

7. Tension release rod assy

16.

Tension release rod [KE-434B,434C Pneumatic spec.]

8. Driving lever push lever

17.

Presser bar lifter crank

9. Set screw [Loosen]

 

 

47

KE-430B,430C series

3. DISASSEMBLY

3317Q

Stepping foot specifications

1. Set screw

2. Thread tension assy [Pull out]

3. Tension release pin

4. Tension release pin, L

5. Shoulder screw

6. Shoulder screw

7. Tension release rod assy

8. Driving lever push lever

9. Screw

10. Tension release bracket

3318Q

KE-484C

1. Set screw

2. Thread tension assy [Pull out]

3. Tension release pin

4. Tension release pin, L

5. Tension release cylinder assy

6. Rubber cap

7. Set screw [Loosen]

8. Lever shaft

9. Tension release pin push lever

KE-430B,430C series

48

3. DISASSEMBLY

- .Threadtake-upmechanism

1. Screws [2 pcs]

2. Solenoid setting plate

3. Spring

4. Set screws [2 pcs: Loosen]

5. Solenoid joint

6. Screw

7. Spring washer

8. Plain washer

9. Nut

10. Shoulder screws [2 pcs]

11. Thread take-uplever

12. Retaining ring

3319Q 13. Threadtake-uplever crank

14. Plain washer

Stepping foot specifications

3320Q

 

49

KE-430B,430C series

3. DISASSEMBLY

3321Q

KE-484C

1. Pin

2. Screws [2 pcs]

3. Setting plate

4. Shoulder screws [2 pcs]

5. Thread take-uplever

KE-430B,430C series

50

3. DISASSEMBLY

- .Thread trimmer mechanism

Be careful not to drop.

Return the machine head to its normal position, and then remove the connecting rod lever assembly and the thread driving lever assembly.

Tilt the machine head.

Be careful not to drop.

3322Q

1.Rubber cap

2.Set screw [Loosen]

3.Lever shaft

4.Rubber cap

5.Set screw [Loosen]

6.Retaining ring

7.Driving lever guide shaft [Pull out]

8.Cushion

9.Thread release driving lever assy

10.Washer

11.Spring

12.Spring

13.Spring hook

14.Nuts [2 pcs]

15.Shoulder screws [2 pcs]

16.Washers [2 pcs]

17.Set screw [Loosen]

18.Thread trimmer lever shaft

19.Thread trimmer lever

20.Connecting rod lever assy 3323Q 21. Thread driving lever assy

51

KE-430B,430C series

3. DISASSEMBLY

3324Q

KE-484C

Be careful not to drop.

Return the machine head to its normal position, and then remove the thread trimmer rod L and the thread driving lever assembly.

 

1. Rubber cap

 

2. Set screw [Loosen]

Tilt the machine head.

3. Lever shaft

4. Rubber cap

 

5. Set screw [Loosen]

 

6. Retaining rings [2 pcs]

 

7. Driving lever guide shaft

 

[Pull out]

 

8. Cushion

 

9. Washer

 

10.

Spring

 

11.

Spring

 

12.

Bolts [2 pcs]

 

13.

Thread trimmer cylinder

 

14.

Nuts [2 pcs]

 

15.

Shoulder screws [2 pcs]

 

16.

Washers [2 pcs]

 

17.

Set screw [Loosen]

 

18.

Thread trimmer lever shaft

 

19.

Thread trimmer lever

 

20.

Thread trimmer rod, L

3325Q

21.

Thread driving lever assy

KE-430B,430C series

52

3. DISASSEMBLY

53

KE-430B,430C series

4. ASSEMBLY

. ASSEMBLY

Assemble each part in order of the numbers.

Apply grease to the required places when reassembling the parts and once every two years.

- .Thread trimmer mechanism (1)

3329Q

Install the retaining ring between the thread release driving lever assembly and the washer.

Apply grease.

 

 

 

 

 

3328Q

 

 

 

 

Place the cushion against the edge of the

 

 

 

 

arm, set the various parts so that there is no

 

 

 

 

gap between them as shown in the

 

Apply grease.

 

illustration, and then tighten the set screw as

 

 

 

 

 

 

 

 

far as the screw stop.

 

 

 

 

Adjust the position of the thread driving lever

 

 

 

 

assembly while referring to “5-20.Adjusting

 

 

 

 

the position of the thread trimming link

 

 

 

 

mechanism”.

 

 

 

 

 

 

 

 

 

 

Tighten the set screw on the screw flat while

 

 

 

 

lightly pressing the lever shaft downward.

 

 

 

 

 

 

 

 

 

 

 

 

 

1. Driving lever guide shaft

 

 

Apply grease.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2. Spring

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Washer

 

 

 

 

 

 

 

 

 

4. Thread release driving lever assy

 

 

 

 

 

 

 

 

 

5. Thread driving lever assy

 

 

 

 

 

 

 

 

 

6. Cushion

 

 

 

 

 

 

 

 

 

7. Retaining ring

 

 

 

 

 

 

 

 

 

8. Set screw

 

 

 

 

 

 

 

 

 

9. Rubber cap

Tilt the machine head.

 

 

 

 

10.

Connecting rod lever assy

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11.

Lever shaft

 

 

 

 

 

 

 

 

 

12.

Set screw

 

 

 

 

 

 

 

 

 

13.

Rubber cap

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14.

Thread trimmer lever

 

 

 

Apply grease.

 

 

 

 

 

 

 

 

 

 

 

15.

Thread trimmer lever shaft

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(with washer and retaining ring)

 

 

 

 

 

 

 

 

 

16.

Set screw

 

 

 

 

 

 

 

 

 

17.

Thread trimmer rod assy

 

 

 

 

 

 

 

 

 

18.

Shoulder screw

 

 

 

 

 

 

 

 

 

19.

Nut

 

 

 

 

 

 

 

 

 

20.

Washers [2 pcs]

 

 

 

 

 

 

 

 

 

21.

Shoulder screw

 

Tighten the set screw on the screw flat while lightly

 

22. Nut

 

pressing the thread trimmer lever shaft upward.

 

23. Spring hook

3330Q

 

24. Spring

KE-430B,430C series

54

4. ASSEMBLY

3332Q

KE-484C

Install the retaining ring between the thread driving lever assembly and the washer.

3331Q

Place the cushion against the edge of the arm, set the various parts so that there is no gap between them as shown in the illustration, and then tighten the set screw as far as the screw stop.

Adjust the position of the thread driving lever assembly while referring to “5-20.Adjusting the position of the thread trimming link mechanism”.

Tighten the set screw on the screw flat while lightly pressing the lever shaft downward.

Apply grease.

Apply grease.

Apply grease.

Tilt the machine head.

Apply grease.

Tighten the set screw on the screw flat while lightly pressing the thread trimmer lever shaft upward.

3333Q

1.Driving lever guide shaft

2.Spring

3.Washer

4.Thread driving lever assy

5.Cushion

6.Retaining rings [2 pcs]

7.Set screw

8.Rubber cap

9.Thread trimmer rod, L

10.Lever shaft

11.Set screw

12.Rubber cap

13.Thread trimmer lever

14.Thread trimmer lever shaft (with washer and retaining ring)

15.Set screw

16.Thread trimmer rod assy

17.Shoulder screw

18.Nut

19.Washers [2 pcs]

20.Shoulder screw

21.Nut

22.Thread trimmer cylinder

23.Bolts [2 pcs]

24.Spring

55

KE-430B,430C series

4. ASSEMBLY

- .Thread nipper mechanism

Solenoid specifications

Apply grease.

After installing the lifting lever, check that it moves smoothly.

3334Q

Apply grease.

Driving lever stopper

Install the driving lever push lever and the tension release lever U to the driving lever stopper with the shoulder screw.

1.Presser bar lifter crank

2.Lifting lever

3.Screw with washer

4.Work clamp lever lifter shaft

5.Tension release lever

6.Collar

7.Tension release rod assy

8.Shoulder screw

9.Driving lever push lever

10.Tension release lever, U

11.Shoulder screw

KE-430B,430C series

56

4. ASSEMBLY

Pneumatic specifications

Apply grease.

After installing the lifting lever, check that it moves smoothly.

3335Q

3336Q

Install the driving lever push lever and the tension release lever U to the driving lever stopper with the shoulder screw.

Apply grease.

Driving lever stopper

Adjust the thread take-upspring height while referring to“1-2.Standard thread tension”.

 

1. Presser bar lifter crank

12.

Retaining ring

 

2. Tension release rod

13.

Tension release rod assy

 

3. Screw

14.

Shoulder screw

 

4. Lifting lever

15.

Driving lever push lever

 

5. Screw with washer

16.

Tension release lever, U

 

6. Work clamp lever lifter shaft

17.

Shoulder screw

 

7. Tension release lever

18.

Tension release stud

 

8. Collar

19.

Tension release pin

Tighten the set screw while lightly

9. Retaining ring

20.

Thread tension assy

10. Set screw

21.

Set screw

pressing the work clamp lever lifter

shaft.

11. Tension release lever spring

 

 

57

KE-430B,430C series

4. ASSEMBLY

Stepping foot specifications

Apply grease.

1.Tension release bracket

2.Screw

3.Tension release rod assy

4.Shoulder screw

5.Driving lever push lever

6.Tension release lever, U

7.Shoulder screw

8.Tension release pin, L

9.Tension release pin

10.Thread tension assy

11.Set screw

Adjust the thread take-upspring height while referring to“1-2.Standard thread tension”.

KE-484C

Apply grease.

Driving lever stopper

Install the driving lever push lever and the tension release lever U to the driving lever stopper with the shoulder screw.

3337Q

 

1. Tension release pin push lever

 

2. Lever shaft

 

3. Set screw

 

4. Rubber cap

 

5. Tension release cylinder assy

 

6. Tension release pin, L

Apply sealant (Threebond 1212 or similar) to the

7. Tension release pin

thread section.

8. Thread tension assy

3338Q

9. Set screw

KE-430B,430C series

58

4. ASSEMBLY

- .Thread wiper mechanism

Solenoid specifications

Tighten the set screw while lightly pressing the work clamp lever lifter shaft.

3341Q

Adjust the thread take-upspring height while referring to“1-2.Standard thread tension”.

After installing the thread wiper, moved the forked part of the thread wiper driving lever and check that the thread wiper unit moves smoothly.

Note:

If the thread wiper unit does not move smoothly, error E-60may be displayed.

3339Q

Adjust while referring to “5-17.Adjusting the thread wiper”.

1.Thread wiper rod assy [Insert from above]

2.Thread wiper driving lever

3.Thread wiper shaft (with washer and retaining ring)

4.Set screw

5.Thread wiper rod assy

[Place onto the work clamp lever lifter shaft]

6.Retaining ring

7.Work clamp lever lifter shaft

8.Set screw

9.Tension release lever spring

10.Retaining ring

11.Thread wiper arm assy

12.Retaining ring

13.Set screw [Temporarily tighten]

14.Thread wiper

15.Plain washer

16.Screw

17.Tension release stud

18.Tension release pin

19.Thread tension assy

20.Set screw

59

KE-430B,430C series

4. ASSEMBLY

Pneumatic specifications

When installing the solenoid box assembly, pass the tension release rod through the hole.

After installing the plunger pin, push the thread wiper connecting rod assembly up and check that the thread wiper unit moves smoothly.

3342Q

Adjust while referring to “5-17.Adjusting the thread wiper”.

1.Thread wiper arm assy

2.Set screw [Temporarily tighten]

3.Thread wiper connecting rod assy

4.Screws [2 pcs]

5.Solenoid box assy

6.Washers [2 pcs]

7.Bolts [2 pcs]

8.Plunger pin

9.Lifting lever

10.Screw with washer

KE-430B,430C series

60

4. ASSEMBLY

Stepping foot specifications

3343Q

Adjust while referring to “5-17.

Adjusting the thread wiper”.

 

1. Thread wiper connecting rod assy

 

2. Set screw [Temporarily tighten]

 

3. Solenoid box assy

 

4. Washers [2 pcs]

After installing the face plate while referring to “4-21.Covers”,

5. Bolts [2 pcs]

install the bolts, and then push the thread wiper connecting

6. Plunger pin

rod assembly up and check that the thread wiper unit moves

7. Bolts [2 pcs: Install to face plate]

smoothly.

 

KE-484C

3344Q

1. Thread wiper connecting rod

2. Set screw [Temporarily tighten]

3. Cylinder box

4. Washers [2 pcs]

5. Bolts [2 pcs]

6. Bolts with washers [2 pcs]

7. Screw

61

KE-430B,430C series

4. ASSEMBLY

- .Threadtake-upmechanism

3345Q

Attach the spring to spring hooks (A) and (B).

1) Provisionally install the solenoid joint to the thread take-upsolenoid with the set screws.

2) Place the solenoid joint onto the thread take-uplever crank so that the flat surface is against the flat part of the threadtake-upcrank, and then install the solenoid setting plate to the machine head.

Apply grease.

3346Q

While pushing the solenoid joint

 

3347Q

1. Thread take-uplever crank

 

 

 

in the direction of the arrow, set

 

 

 

2. Plain washer

the solenoid setting plate and the

 

 

 

3. Retaining ring

solenoid

joint

so

that

the

gap

 

 

 

4. Thread take-uplever

between

them

is

0.5

mm,

and

 

 

 

 

 

 

5. Shoulder screws [2 pcs]

then tighten the set screws.

 

 

 

 

 

 

 

 

6. Set screw [Temporarily tighten]

* Move the solenoid joint and

 

 

 

 

 

 

7. Spring washer

check that the thread take-up

 

 

 

 

 

 

lever operates smoothly. If it

 

 

 

8. Plain washer

does not move smoothly, it

 

 

 

9. Nut

may damage the solenoid. If

 

 

 

10.

Solenoid joint

the movement

is not smooth,

 

 

 

11.

Set screws [2 pcs]

make

fine adjustments to

the

 

 

 

 

 

 

12.

Spring

position of the solenoid setting

 

 

 

 

 

 

13.

Solenoid setting plate

plate until the thread take-up

 

 

 

 

14.

Screws [2 pcs]

lever operates smoothly.

 

Seen from the front

 

 

 

 

 

 

 

 

 

 

 

 

 

KE-430B,430C series

62

4. ASSEMBLY

3348Q

Stepping foot specifications

Attach the spring to spring hooks (A) and (B).

1) Provisionally install the solenoid joint to the thread take-upsolenoid with the set screws.

2) Place the solenoid joint onto the thread take-uplever crank so that the flat surface is against the flat part of the threadtake-upcrank, and then install the solenoid setting plate to the machine head.

Apply grease.

3346Q

While pushing the solenoid joint

3349Q

1. Thread take-uplever crank

in the direction of the arrow, set

 

 

2. Plain washer

the solenoid setting plate and the

 

 

3. Retaining ring

solenoid

joint

so

that

the

gap

 

 

 

 

4. Thread take-uplever

between

them

is

0.5

mm,

and

 

 

 

 

5. Shoulder screws [2 pcs]

then tighten the set screws.

 

 

 

 

 

 

6. Set screw [Temporarily tighten]

* Move the solenoid joint and

 

 

check that the thread take-up

 

 

7. Spring washer

 

 

lever operates smoothly. If it

 

 

8. Plain washer

does not move smoothly, it

 

 

9. Nut

may damage the

solenoid. If

 

 

10. Solenoid joint

the movement

is

not smooth,

 

 

 

 

11. Set screws [2 pcs]

make

fine adjustments to

the

 

 

 

 

12. Spring

position of the solenoid setting

 

 

 

 

13. Solenoid setting plate

plate until the thread take-up

 

 

 

 

Seen from above

14. Screws [2 pcs]

lever operates smoothly.

 

 

 

 

 

 

 

 

 

 

 

63

KE-430B,430C series

4. ASSEMBLY

3350Q

KE-484C

1. Thread take-uplever

2. Shoulder screws [2 pcs]

3. Setting plate

4. Screws [2 pcs]

5. Pin

6. Retaining ring

KE-430B,430C series

64

4. ASSEMBLY

- .Work clamp lifter mechanism (Solenoid specifications)

When assembling, apply grease to the required places while referring to “4-5-1.Applying grease”.

KE-430B,431B, 433B, 434B

KE-430C,431C, 434C

Secure link shaft, A using the set screw so that link, B (8) is centered in the bush.

<KE-433B,434B, 434C>

3351Q

1.Work clamp lifter link-relatedparts [Insert from above the arm]

2.Link shaft, B [Place into the forked section of the thread wiper driving lever (2)]

3.Link shaft, A [Pass through the washer and link A (3)]

4.Snap pins [2 pcs: Attach to both ends of link shaft A]

5.Set screws [2 pcs]

6.Work clamp lifter stopper rubber

7.Work clamp plate [Insert from below the arm]

8.Link shaft, C [Pass through link B (8) and the work clamp plate]

9.Snap pins [2 pcs: Attach to both ends of link shaft C]

10.Presser solenoid assy [Insert from above the arm]

65

KE-430B,430C series

4. ASSEMBLY

Tighten the screws so that the presser solenoid assembly protrudes by 110.0 ± 0.2 mm from the edge of the arm.

3352Q

Seen from above

3353Q

Lastly, move the work clamp lifer link-relatedparts by hand and check that they move smoothly.

11.Screws [2 pcs]

12.Screws [4 pcs]

13.Rubber caps [2 pcs]

14.Link shaft, D

15.Snap pins [2 pcs]

16.Guide

17.Screws [2 pcs]

18.Springs [2 pcs: Hook onto link shaft B and the grooved pins (18)]

19.Oil cap

20.Rubber cap

KE-430B,430C series

66

4. ASSEMBLY

When assembling, apply grease to the required places while referring to “4-5-1.Applying grease”.

KE-432B,432C

BE-438B,438C

Secure link shaft A using the set screw so that link B (10) is centered in the bush.

<BE-438B,438C>

1. Work clamp lifter link-relatedparts

 

[Insert from above the arm]

 

2. Link shaft, B

 

[Place into the forked section of the thread wiper driving lever (2)]

3354Q

3.Link shaft, A [Pass through the washer and link A (3)]

4.Snap pins [2 pcs: Attach to both ends of link shaft A]

5.Set screws [2 pcs]

6.Retaining ring

7.Plain washer

8.Rubber band

9.Work clamp lifting rod

10.Link shaft, C [Pass through link B (10) and the work clamp plate]

11.Snap pins [2 pcs: Attach to both ends of link shaft C]

12.Presser solenoid assy [Insert from above the arm]

13.Screws [2 pcs]

14.Screws [4 pcs]

15.Rubber caps [2 pcs]

67

KE-430B,430C series

4. ASSEMBLY

Tighten the screws so that the presser solenoid assembly protrudes by 110.0 ± 0.2 mm from the edge of the arm.

3355Q

Seen from above

3356Q

Lastly, move the work clamp lifer link-relatedparts by hand and check that they move smoothly.

16.Link shaft, D

17.Snap pins [2 pcs]

18.Guide

19.Screws [2 pcs]

20.Springs [2 pcs: Hook onto link shaft B and the grooved pins (20)]

21.Oil cap

22.Rubber cap

23.Work clamp lifter lever KE-432B,432C Button clamp lifting leverBE-438B,438C

24.Button clamp lever shaft

25.Set screw

KE-430B,430C series

68

4. ASSEMBLY

- - .Applying grease

If the work clamp does not move up and down smoothly, error E-60may be displayed.

Check that the mechanism moves smoothly and also apply grease to all sliding parts during assembly.

3357Q

<KE-433B,434B, 434C>

 

 

 

 

 

 

 

 

<KE-432B,432C>

<BE-438B,438C>

 

 

 

 

 

 

 

 

 

 

1.Sliding portions of link shaft, C [1], link, B [2], and work clamp plate (work clamp lifting rod: KE-432B,432C,BE-438B,438C) [3]

2.Sliding portions of link shaft, B [4], link, B [2], link, A [5] and link assy, C [6]

3.Forked portion of the thread wiper driving lever [7]

4.Sliding portions of link shaft, A [8] and link, A [5]

5.Sliding portions of link shaft, D [9] and link assy, C [6]

6.Forked portion of the plunger [10] where link assy, C [6] is fitted

7.Outer and inner surfaces of spherical bush [11] to be attached to link assy, C [6]

8.Shaft of work clamp plate (work clamp lifting rod: KE-432B/432C,BE-438B/438C)[3]

69

KE-430B,430C series

4. ASSEMBLY

- .Feed mechanism (1)

KE-430B,431B, 432B, 433B,BE-438B

KE-430C,431C, 432C,BE-438C

Feed cams X and Y both have index marks. Check these when using.

3358Q

Assembly steps of the feed mechanism are the same for X and Y directions.

Tighten the set screw in the illustration at the screw stop position.

Set screw at screw stop

3359Q

Check that the feed cam turns smoothly.

3361Q

Place coupling hub 8 onto the cam shaft so that there is no play in the hub, and then tighten the set screw at the screw stop position as shown in the illustration.

Screw stop

3360Q

1.Feed cam

2.Ball bearings [2 pcs]

Place the coupling hub onto the pulse motor shaft, and then tighten the set screw at the screw stop position so that the pulse motor shaft protrudes from the edge by 2.5 mm.

3362Q

 

3. Cam shaft (with retaining ring)

 

 

4. Coupling hub,

8

 

 

 

 

 

 

5. Set screws [2 pcs]

 

 

 

6. Set screws [2 pcs]

 

 

 

7. Feed home position dog

 

 

 

8. Screw [Provisionally tighten at

 

 

 

middle of slot]

 

 

 

 

9. Coupling hub,

6.35

 

 

 

Coupling hub,

8 KE-433B

 

 

 

10. Set screws [2 pcs]

 

 

 

 

 

 

 

 

KE-430B,430C series

70

4. ASSEMBLY

Assembly steps of the feed mechanism are the same for X and Y directions.

3364Q

Apply grease.

Apply grease.

Apply grease.

Place the coupling spacer onto coupling hub 8.

 

11.

Coupling spacer

 

 

 

12.

Positioning pins [2 pcs]

Place the feed cam bracket onto the positioning

13.

Feed cam bracket

pins, and then install with the screws.

14.

Screws [2 pcs]

3363Q

3366Q

Set the coupling hub at the angle for inserting the coupling spacer, and install the pulse motor to the machine bed.

* Make sure that the harness faces correctly.

15. Pulse motor assy, X

16. Bolts [4 pcs]

3365Q 17. Pulse motor assy, Y

18. Bolts [4 pcs]

71

KE-430B,430C series

4. ASSEMBLY

KE-434B,435B, 436B

KE-434C,435C, 436C, 484C

Feed cams X and Y both have index marks. Check these when using.

3367Q

Assembly steps of the feed mechanism are the same for X and Y directions. Align the edges of coupling hub 8 and the cam shaft.

X direction

3368Q

Place the cam onto the cam shaft so that there is no play in the cam, and then tighten the set screws.

Y direction

3369Q

Place the coupling hub 8 onto the pulse motor shaft, and then tighten the set screw at the screw stop position so that the pulse motor shaft protrudes from the edge by 2.5 mm.

3362Q

1.Coupling hub, 8

2.Set screws [2 pcs]

3.PM bracket

4.Ball bearing [X: 2 pcs, Y: 1 pc]

5.Cam shaft

6.Feed cam

7.Set screws [2 pcs]

8.Coupling hub, 8

9.Set screws [2 pcs]

KE-430B,430C series

72

4. ASSEMBLY

Apply grease.

Apply grease.

1)Place the coupling spacer onto coupling hub 8.

2)Set coupling hub 8 on the pulse motor shaft at the angle for inserting the coupling spacer, and install the pulse motor to the machine bed.

*Make sure that the harness faces correctly.

3370Q

While pressing the set collar,

 

tighten the set screw at the

 

screw stop position.

Apply grease.

 

Place the feed cam bracket onto the positioning pins, and then install with the screws.

3371Q

10.Ball bearing [Insert into the bed]

11.Coupling spacer

12.Pulse motor assy, X

13.PM bracket, X

14.Bolts [4 pcs]

15.Positioning pins [2 pcs]

16.Y-feedcam bracket

17.Screws [2 pcs]

18.Ball bearing

19.Coupling spacer

20.Pulse motor assy, Y

21.PM bracket, Y

22.Bolts [4 pcs: 3 pcs for KE-484C]

23.Set screw collar

24.Set screws [2 pcs]

73

KE-430B,430C series

4. ASSEMBLY

- .Feed mechanism (2)

KE-430B,431B, 432B, 433B,BE-438B

KE-430C,431C, 432C,BE-438C

Feed home position dog

Push the home position sensor Y cable into the recess.

Oil supply hole

Note:

3372Q Make sure the wick does not touch the connecting rod lever.

Install home position sensors X and Y so that there is a gap of 0.5–0.9mm between the sensors and the feed home position dog.

3374Q

3373Q

Feed home position dog

1)Insert the tack width feed lever shaft with the thrust washer and retaining ring installed into the Y-feedlever assembly, press down on the top of it so that there is no play, and then tighten the set screw at the screw stop position.

*Check that the Y-feedlever assembly moves smoothly.

3375Q

2) Put the driver into the end of the Y-feedlever, and press theX-feedlever assy downward.

3) Place the set screw collar on the shaft of the X-feedlever, press it in the direction of the arrow, and tighten the set screws.

3376Q

1.X-feedlever assy [Insert onto bushing]

2.Feed cam roller

[Place into groove of feed cam X]

3.Thrust washer

4.Y-feedlever assy

5.Feed cam roller

[Place into groove of feed cam Y]

6.Thrust washer

7.Tack width feed lever shaft (with retaining ring)

8.Set screw

9.Set screw collar

10.Set screws [2 pcs]

11.Home sensor setting plate

12.Screw

13.Home sensor setting plate

14.Screw

15.Cord holder

16.Screw

17.Cord holder

18.Screw

19.Wick [Insert into oil supply hole]

20.Wick [Insert into oil supply hole]

KE-430B,430C series

74

4. ASSEMBLY

KE-434B,435B, 436B

KE-434C,435C, 436C, 484C

Push the home position sensor Y cable into the recess.

Oil supply hole

Note:

Make sure the wick does not

touch the connecting rod lever.

3377Q

Home position dog, X

Home position sensor X

3379Q

Install the X-sensorsetting base so that there is a gap of0.5–0.9mm between the sensing surface of home position sensor X and the home position dog X.

3378Q

1)Insert the tack width feed lever shaft with the thrust washer and retaining ring installed into the Y-feedlever assembly, press down on the top of it so that there is no play, and then tighten the set screw at the screw stop position.

*Check that the Y-feedlever assembly moves smoothly.

3575Q

2) Put the driver into the end of the Y-feedlever, and press theX-feedlever assy downward.

3) Place the set screw collar on the shaft of the X-feedlever, press it in the direction of the arrow, and tighten the set screws.

3376Q

1.X-feedlever assy [Insert onto bushing]

2.Feed cam roller

[Place into groove of feed cam X]

3.Thrust washer

4.Y-feedlever assy

5.Feed cam roller

[Place into groove of feed cam Y]

6.Thrust washer

7.Tack width feed lever shaft (with retaining ring)

8.Set screw

9.Set screw collar

10.Set screws [2 pcs]

11.X-sensorsetting base

12.Screw

13.Y-sensorsetting plate

14.Screw

15.Cord clamps [3 pcs]

16.Screws [3 pcs]

17.Wick [Insert into oil supply hole]

18.Wick [Insert into oil supply hole]

75

KE-430B,430C series

4. ASSEMBLY

- .Upper shaft mechanism

<KE-435B,435C><KE-436B,436C>

Rotation direction

Push the thread trimmer cam onto the upper shaft crank, align the forward set screw in the rotation direction with the screw stop position, and tighten the set screw at that position.

3380Q

Apply grease.

Apply grease.

 

Apply grease.

 

 

 

Upper shaft bush

Apply adhesive (Threebond 1401 or similar) to the outside of the bearing.

Place the thread take-upcrank onto the upper shaft from the face plate end, tighten the screw into the hole in the upper shaft, and then tighten the set screw.

Place the thread take-upcrank, thrust washer and bobbin winder pulley (stepping foot connecting rod) into the upper shaft bush so that there is no play in the parts, and then tighten the set screw at the screw stop position.

3381Q

3382Q

Make a gap of 1.0 mm between the magnet of timing pulley assembly U and the synchronizer assembly, and then align the rear set screw in the rotation direction of timing pulley assembly U with the screw stop position and tighten the set screw at that position.

Rotation direction

3383Q

1.Upper shaft

2.Thread trimmer cam

3.Bobbin winder pulley <3> Stepping foot

connecting rod

4.Thrust washer

5.Thread take-upcrank

6.Screw

7.Set screw

8.Set screws [2 pcs] <8> Set screws [2 pcs]

9.Set screws [2 pcs

10.Synchronizer assy

11.Screws [2 pcs]

12.Timing pulley assy, U

13.Set screws [2 pcs]

KE-430B,430C series

76

4. ASSEMBLY

KE-484C

Make a gap of 3 mm between the thread trimmer cam and U-timingpulley F.

Align the ridge line at the back of the groove in the upper shaft with the edge of the thread trimmer cam.

Apply adhesive (Threebond

3384Q 1401 or similar) to the outside of the bearing.

Apply grease.

Apply grease.

Upper shaft bush

Place the thread take-upcrank onto the upper shaft from the face plate end, tighten the screw into the hole in the upper shaft, and then tighten the set screw.

3385Q

Place the thread take-upcrank, thrust washer and bobbin winder pulley into the upper shaft bush so that there is no play in the parts, and then tighten the set screw at the screw stop position.

1. Upper shaft

11.

Set screws [2 pcs]

2. Thread trimmer cam

12.

Set screws [2 pcs]

3. U-timingpulley, F

13.

Tension pulley arm

4. U-timingbelt, F

14.

Adjusting screw

5. Bobbin winder pulley

15.

Nut

6. Thrust washer

16.

Adjusting screw

7. Thread take-upcrank

17.

Nut

8. Screw

18.

Plain washer

9. Set screw

19.

Nut

10. Set screws [2 pcs]

 

 

77

KE-430B,430C series

4. ASSEMBLY

3386Q

20. Setting plate packing

21. Frame side cover

22. Blind plate

23. Screws [4 pcs]

24. Belt cover support pillars [2 pcs]

25. Synchronizer assy

26. Screws [2 pcs]

27. Timing pulley assy, U

28. Set screws [2 pcs]

3387Q

3382Q

Make a gap of 1.0 mm between the magnet of timing pulley assembly U and the synchronizer assembly, and then align the rear set screw in the rotation direction of timing pulley assembly U with the screw stop position and tighten the set screw at that position.

Rotation direction

3383Q

KE-430B,430C series

78

4. ASSEMBLY

- .Stepping foot lifter mechanism(KE-435B,435C, 436B, 436C)

3388Q

Install the air cylinder setting plate so that there is a distance of 42.8–43.3mm between section A of the work clamp lifter lever and the top of the presser bar bush when section A is at its lowest point.

Work clamp lifter lever

Presser bar bush

3389Q

1. Stepping link, A

2. Plain washer

3. Retaining ring

4. Air cylinder setting plate

5. Screws [4 pcs]

79

KE-430B,430C series

4. ASSEMBLY

- .Stepping foot mechanism(KE-435B,435C, 436B, 436C)

Adjust while referring to “5-16.Changing the work clamp lift”.

Adjust while referring to “5-15.Work clamp adjustment”.

3391Q

Nut

Set the presser adjusting screw so that the distance from its top to the top of the machine head is approximately 32 mm, and then secure the nut.

Insert the presser bar spring and the presser bar spring guide into the top of the machine head, pass them through the washer, and then place them onto the presser bar.

3390Q

1.Stepping foot arm, R

2.Feed lifter lever shaft

3.Washers [2 pcs]

4.Feed roller

5.Nut

6.Stepping foot arm, F

7.Bush, L

8.Bush, R

9.Bolt

10.Presser bar [Insert from above]

11.Presser bar lifter

12.Cushion

13.Presser bar clamp

14.Screw

15.Washer

16.Presser bar spring

17.Presser bar spring guide

18.Presser adjusting screw

19.Stepping link assy

20.Screws [2 pcs]

21.Presser foot

22.Finger guard

23.Plain washers [2 pcs]

24.Screw

KE-430B,430C series

80

4. ASSEMBLY

- - .Adjusting the lowest point of the presser foot

Carry out the steps in “4-11.Needle bar mechanism” before making this adjustment.

3506Q

3507Q

Index marks

3508Q

 

 

 

 

 

 

3509Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.Loosen the set screw (1).

2.Turn the machine pulley to raise the needle bar from its lowest position until reference line B (the lowest reference line on the needle bar) or reference line b (second reference line from the top) is aligned with the lower edge of the needle bar bush (2).

3.Turn the stepping work clamp cam (3) without turning the machine pulley to set the presser bar lifter (4) to its lowest position, and then secure the stepping work clamp cam (3) to the upper shaft (5) with the set screw (1).

*At this time, push the stepping work clamp cam (3) in the direction of the arrow so that there is no play between it and the upper shaft (5).

4.With the presser bar lifter (4) at its lowest point, loosen the bolt (8) of stepping work clamp arm R (7) and adjust so that the gap between the presser bar lifter (4) and the presser bar bush (6) is 0.5–1.0mm. (A guide to this is that the index mark on stepping work clamp arm F (9) should be about aligned with the index mark on the arm.)

*Check that there is no forward or backward play in stepping work clamp arm F (9) at this time.

5.With the presser bar (10) at its lowest position, secure the presser bar clamp (11) with the screw (12) so that the distance from the bottom edge of the presser bar and the top of the needle plate is 23 mm.

81

KE-430B,430C series

4. ASSEMBLY

- .Needle bar mechanism

Press the thread take-upsupport shaft gently while tightening

the set screw.

Apply grease.

Oil supply hole

3392Q

Align the set screw with the screw stop.

3393Q

After securing the needle bar, position the needle bar guide so that the machine pulley turns smoothly, and then tighten the screws.

Apply grease.

Apply grease.

Fit the chamfering side of the slide block into the groove on the needle bar guide.

Cut section

3394Q

Align the needle bar so that

 

reference line A (the second

Needle bar

lowest reference line on the

bush

needle bar) or reference line a

 

(top reference line) is aligned

 

with the lower edge of the

 

needle bar bush when the

 

machine pulley is turned to raise

 

the needle bar from its lowest

 

position, and then set the cut

 

section so that it is facing

 

forward and tighten the screw.

 

3395Q

 

1.Needle bar guide

2.Screws

[2 pcs: Temporarily tighten]

3.Thread take-uplever

4.Needle bar connecting rod

5.Needle bearing

6.Set screw

7.Set screw

8.Thread take-upsupport

9.Thread take-upsupport shaft

10.Set screw

11.Slide block

12.Needle bar clamp

13.Needle bar [Insert from above]

14.Screw

15.Oil cap

16.Rubber caps [4 pcs]

17.Wick [Insert into oil supply hole]

KE-430B,430C series

82

4. ASSEMBLY

- .Lower shaft mechanism

3396Q

KE-430Cseries

BE-438C

Apply grease.

KE-430Bseries

BE-438B

Place the driver against the retaining ring and provisionally tighten the bolt.

Clamp the rock gear with the stepped part of the rock gear shaft and the set screw collar so that there is no play in the rock gear, and then tighten the set screws.

Engage the lower shaft gear with the rock gear.

Apply grease.

Lower shaft bush

Set the needle bar to its lowest position and then insert the lower shaft with this screw stop facing straight downward.

Clamp the lower shaft bush with the lower shaft gear and the set screw collar so that there is no play in the lower shaft bush, and then tighten the set screws.

Apply grease.

3398Q

3397Q

Insert the crank rod (lower part) into the crank of the upper shaft, and then align the mating mark on the crank rod (upper part) from above and gently tighten

the screws.

Mating mark * Check that the machine pulley turns smoothly.

1.Rock gear shaft [Insert from the rear of the machine head]

2.Rock gear

3.Set screw collar

4.Set screws [2 pcs]

5.Lower shaft assy [Insert from the rear of the machine head]

6.Set screw collar

7.Set screws [2 pcs]

8.Retaining ring

9.Driver

10.Bolt [Temporarily tighten]

11.Crank rod (Lower part) [Insert into upper shaft crank]

12.Crank rod (Upper part) [Align the mating mark]

13.Screws [2 pcs]

83

KE-430B,430C series

4. ASSEMBLY

While turning the

machine

pulley, move the

3400Q

rock gear to the

left and

right to find the

position where it moves smoothly. Then without moving the rock gear, turn the rock gear shaft so that there is a gap of 0.05--0.12mm at the end of the driver, and tighten the set screws.

*Check that the machine pulley turns smoothly.

3399Q

Carry out the steps in “5-26.Adjusting the tension of the upper shaft timing belt” before tightening.

Place the upper shaft timing belt onto the upper shaft pulley and the motor pulley.

3401Q

14.Set screws [2 pcs]

15.Wick [Pass through the rock gear shaft and make a knot]

16.Upper shaft timing belt

17.Motor bracket

18.Bolts [3 pcs: Temporarily tighten]

19.Bolt

20.Nut

21.Motor connector

KE-430B,430C series

84

4. ASSEMBLY

KE-484C

3402Q

3403Q

Carry out the steps in “5-26.Adjusting the tension of the upper shaft timing belt” before tightening.

Place the upper shaft timing belt onto the upper shaft pulley and the motor pulley.

3404Q

1.Lower shaft [Insert from the rear of the machine head]

2.Lower shaft timing pulley

3.Thrust bearing

4.Lower shaft gear spacer

5.Wick [Pass through the lower shaft and make a knot]

6.Set screw

7.U-timingbelt, F

[Place onto the lower shaft timing pulley]

8.Rotary hook shaft

[Insert from the rear of the machine head]

9.Set screw collar

10.Set screws [2 pcs]

11.Lower gear

12.Set screw

13.Upper shaft timing belt

14.Motor bracket

15.Bolts [3 pcs: Temporarily tighten]

16.Bolt

17.Nut

18.Motor connector

85

KE-430B,430C series

4. ASSEMBLY

- .Thread trimmer mechanism (2)

1) Place the thread connecting rod onto the pin of the connecting rod lever assembly, and then install the needle plate with flat screws and screws so that the needle is at the center of the needle hole.

<KE-484C>

Connecting rod lever

3405Q

Connecting rod lever

3406Q

assy

 

 

Driving lever stopper

2)Turn the machine pulley to set the needle to its lowest position.

3)Install the thread trimmer solenoid with the screws so that the gap between the thread driving lever assembly and the driving lever stopper is 0.5 mm when the plunger of the thread trimmer solenoid is pushed all the way in.

Plunger

Thread driving

 

lever assy

3407Q

 

1. Thread connecting rod

 

2. Needle plate

 

3. Flat screws [2 pcs]

 

4. Screws [2 pcs]

3408Q

5. Thread trimmer solenoid

6. Screws [2 pcs]

 

After installing, carry out the steps in “5-19.Adjusting the movable knife”.

 

 

 

KE-430B,430C series

86

4. ASSEMBLY

- .Shuttle hook mechanism

3411Q

After installing the shuttle hook, carry out the adjustments in “5-2.Adjusting the needle bar lift amount”,“5-3.Adjusting the driver needle guard” and“5-4.Adjusting the needle clearance”.

3412Q

1.Needle bar thread guide

2.Needle

3.Set screw

4.Shuttle hook

5.Shuttle race base

6.Bobbin

7.Bobbin case assy

8.Felt holder

9.Support

[Return to original position]

3419Q

KE-430Bseries,BE-438B

 

 

 

 

 

 

Press the felt and the wick gently as shown in

 

 

 

2)

 

 

 

3447Q

the illustration.

 

 

 

1) Place the felt support as shown in the

 

Wick

 

illustration so as not to clamp the felt.

 

 

 

 

 

 

 

 

Felt

 

 

Felt

 

 

 

 

 

 

 

 

 

 

 

 

3420Q

 

3421Q

 

87

KE-430B,430C series

4. ASSEMBLY

KE-484C

 

 

 

3423Q

 

 

 

 

Approx. 0.8mm

 

 

Shuttle hook

Bobbin case holder position bracket

Install the hook stopper setting base so that the distance from the tip of the bobbin case holder 3422Q position bracket to the needle drop surface is

approximately 0.8 mm.

3424Q

3425Q

Tip of the rotary hook

 

 

 

1. Needle bar thread guide

 

 

 

2. Needle

 

 

 

3. Set screw

 

 

Set screws

4. Treble hook assy

 

 

5. Set screws [2 pcs]

Turn the machine pulley to align the tip of the rotary hook with

6. Hook stopper setting base

the needle center line. Then tighten the set screw to adjust the

7. Screw

clearance between the needle and the tip of the rotary hook to

8. Bobbin

0.01–0.08mm.

9. Bobbin case assy

 

 

 

KE-430B,430C series

88

4. ASSEMBLY

- .Work clamp arm mechanism(KE-430B,430C, 431B, 431C)

Be careful not to drop these two ball

Align with the screw stop and push down

from above while tightening the set screw.

bearings when installing the feed bracket

 

assembly.

 

3426Q

Be careful not to drop these three ball bearings when installing the work clamp arm assembly.

 

Place the tack length feed slide block

Tack length feed

into the groove of the feed bracket

slide block

assembly, and then use the screws to

 

install it together with the feed bracket

 

guide plate.

Secure the work clamp arm support shaft with the set screw so that the bottom of the work clamp arm support plate and the ball bearings touch when the work clamp is raised.

Refer to “4-20.Work clamp arm mechanism (Applying grease)”

 

1. Feed bracket assy

 

2. Feed bracket guide plate

 

3. Screws [8 pcs]

 

4. Rod end

 

5. Tack width feed shaft

 

6. Set screw

 

7. Rubber cap

 

8. Feed plate

 

9. Screws [2 pcs]

 

10.

Work clamp felt

 

11.

Work clamp arm assy

 

12.

Washers [2 pcs]

3427Q

13.

Bolts [2 pcs]

 

14.

Work clamp arm support shaft

Carry out the adjustment in “5-24.Adjusting the

15. Set screw

home position” before installing the feed plate.

 

 

After installing, carry out test feeding and check that the needle hole is inside the work clamp and the feed plate frame. If the needle hole is not inside the frame, adjust the position of the work clamp arm assembly and feed plate.

89

KE-430B,430C series

4. ASSEMBLY

- .Work clamp arm mechanism(KE-432B,432C)

Be careful not to drop these two ball bearings when installing the feed bracket assembly.

Align with the screw stop and push down from above while tightening the set screw.

Tack length feed slide block

3426Q

Place the tack length feed slide block into the groove of the feed bracket assembly, and then use the screws to install it together with the feed bracket guide plate.

First place onto A, then insert into B and place onto C.

Refer to “4-20.Work clamp arm mechanism (Applying grease)”

 

 

1. Feed bracket assy

 

 

2. Feed bracket guide plate

 

 

3. Screws [8 pcs]

 

 

4. Rod end

 

 

5. Tack width feed shaft

 

 

6. Set screw

 

 

7. Rubber cap

 

 

8. Feed plate

 

 

9. Screws [2 pcs]

 

 

10.

Work clamp felt

 

 

11. Button clamp holder

 

 

 

support

 

 

12.

Plain washers [2 pcs]

 

 

13.

Bolts [2 pcs]

 

 

14.

Work clamp arm assy

 

 

15.

Button clamp holder shaft

 

 

16.

Set screws [2 pcs]

 

 

17.

Nuts [2 pcs]

 

 

 

Adjusting screw

 

 

 

Compression spring

Carry out the adjustment in “5-24.Adjusting the home

 

18. Work clamp carrier rod assy

 

19.

Washer

position” before installing the feed plate.

3428Q

20.

Bolt

 

 

After installing, carry out test feeding and check that the needle hole is inside the work clamp and the feed plate frame. If the needle hole is not inside the frame, adjust the position of the button clamp holder support and feed plate.

KE-430B,430C series

90

4. ASSEMBLY

- .Work clamp arm mechanism(KE-433B)

3429Q

Install parts 1 to 6, clamp them using parts 7 and 8 so there is no play in them, and tighten the set screw 9.

Note:

Install so that the two ball bearings of the feed bracket guide shaft assembly do not fit into the holes in the feed bracket guide plate.

Be careful not to drop these three ball bearings when installing the work clamp arm assembly.

Secure the work clamp arm support shaft with the set screw so that the bottom of the work clamp arm support plate and the ball bearings touch when the work clamp is raised.

Refer to “4-20.Work clamp arm mechanism (Applying grease)”

3430Q

Carry out the adjustment in “5-24.Adjusting the home position” before installing the feed plate.

1.Feed bracket guide plate

2.X feed cover

3.Y feed cover

4.Feed bracket assy

5.Spacers [2 pcs]

6.Retainer assys [2 pcs]

7.Feed bracket guide shaft assy

8.Tack length regulator block

9.Set screw

10.Cover support stand

11.Screw

12.Feed bracket cover

13.Screws [8 pcs]

14.Tack width feed shaft

15.Set screw

16.Rubber cap

17.Feed plate

18.Plain washers [2 pcs]

19.Bolts [2 pcs]

20.Work clamp felt

21.Work clamp arm assy

22.Washers [2 pcs]

23.Bolts [2 pcs]

24.Work clamp arm support shaft

25.Set screw

After installing, carry out test feeding and check that the needle hole is inside the work clamp and the feed plate frame. If the needle hole is not inside the frame, adjust the position of the work clamp arm assembly and feed plate.

91

KE-430B,430C series

4. ASSEMBLY

- .Work clamp arm mechanism(KE-434B,434C, 435B, 435C, 436B, 436C, 484C)

Align with the screw stop and push down gently from above while tightening the set screw.

Y-feedlever

3431Q

1)Turn the Y-feedlever forward as far as it will go.

2)Insert the tack width regulator block assembly and the feed guide slide block into the grove in feed bracket guide plate R so that they face as shown in the illustration, and then install the feed bracket assembly and feed bracket guide plate R.

Seen from below

Tack width regulator

 

block assy

 

Y-feedlever

 

cover

1. Feed bracket assy

 

Feed guide

slide block

 

 

3432Q

 

 

2. Feed bracket guide plate, R

 

 

 

 

 

3. Flat screws [2 pcs]

3) Pass the Y-feedlever cover through the slot in the arm bed, and then

4. Screws [2 pcs]

insert the tack width regulator block assembly into the hole in the Y-feed

5. X-feedlever cover

lever.

6.Spacers [2 pcs]

7.Retainer assys [2 pcs]

8.Tack length regulator block assy

9.Set screw

10.Rubber cap

KE-430B,430C series

92

4. ASSEMBLY

Refer to “4-20.Work clamp arm mechanism (Applying grease)”

3433Q

Refer to “4-20.Work clamp arm mechanism (Applying grease)”

3434Q

Carry out the adjustment in “5-24.Adjusting the home position” before installing the feed plate.

Work clamp arm assembly installation position

(A)When using solenoid-typework clamp SPneumatic-type

(B)When using solenoid-typework clamp L

3435Q

11.Feed bracket cover

12.Feed plate

13.Plain washers [2 pcs]

14.Bolts [2 pcs]

15.Work clamp arm assy

16.Washers [2 pcs]

17.Bolts [2 pcs]

18.Cylinder support [Pneumatic spec. only]

19.Bolts [2 pcs: Pneumatic spec. only]

After installing, carry out test feeding and check that the needle hole is inside the work clamp and the feed plate frame. If the needle hole is not inside the frame, adjust the position of the work clamp arm assembly and feed plate.

93

KE-430B,430C series

4. ASSEMBLY

- .Work clamp arm mechanism(BE-438B,438C)

Be careful not to drop these two ball bearings when installing the feed bracket assembly.

Align with the screw stop and push down from above while tightening the set screw.

Tack length feed slide block

3426Q

Carry out the adjustment in “5-24.Adjusting the home position” before installing the feed plate.

Place the tack length feed slide block into the groove of the feed bracket assembly, and then use the screws to install it together with the feed bracket guide plate.

Refer to “4-20.Work clamp arm mechanism (Applying grease)”

1.Feed bracket assy

2.Feed bracket guide plate

3.Screws [8 pcs]

4.Rod end

5.Tack width feed shaft

6.Set screw

7.Rubber cap

8.Feed plate

9.Screws [2 pcs]

10.Work clamp felt

11.Button clamp holder support

12.Plain washers [2 pcs]

13.Bolts [2 pcs]

14.Button clamp holder

15.Button clamp holder shaft

16.Set screws [2 pcs]

17.Nuts [2 pcs]

Adjusting screw

Compression spring

3436Q

After installing, check that the needle passes into the button hole without touching the button. (Refer to “5-14.Adjusting the position of the button holder”.)

KE-430B,430C series

94

4. ASSEMBLY

- .Work clamp arm mechanism (Applying grease)

Check that the mechanism moves smoothly and also apply grease to all sliding parts during assembly.

If the work clamp does not move up and down smoothly, error E-60may be displayed. (for solenoid specifications)

[KE-430B,430C, 431B, 431C, 433B, 434B/434C solenoid specifications]

KE-431B,KE-431C

3438Q

3437Q

1.Sliding portion of the work clamp (1) (Apply small amount of grease.)

2.Sliding portion of the work clamp arm lever shaft (2) and the work clamp arm levers R and L (3) [KE-430B,430C, 433B, 434B/434C solenoid specifications]

Sliding portion of the work clamp lever B (4) and lever shaft bush (5) and work clamp lever A (6) [KE-431B,431C]

3.Round portion of the work clamp arm lever plate (7)

4.Bearing ball of the work clamp arm support shaft (8) [KE-430B,430C, 431B, 431C, 433B]

[KE-434B/434Cpneumatic specifications,KE-435B,435C, 436B, 436C, 484C]

3439Q

1.Sliding portion of the work clamp (1) (Apply small amount of grease.)

2.Sliding portion of the work clamp arm lever shaft (2) and the work clamp arm lever F (3), the work clamp arm lever RR(4) and RL (5)

95

KE-430B,430C series

4. ASSEMBLY

[KE-432B,432C]

Apply grease to the portions indicated by the arrows.

3440Q

[BE-438B,438C]

Apply grease to the portions indicated by the arrows.

3441Q

KE-430B,430C series

96

4. ASSEMBLY

- .Covers

KE-430B,431B, 432B, 433B,BE-438B

KE-430C,431C, 432C,BE-438C

Provisionally tighten this screw, and then fully tighten it after installing the belt cover.

3442Q

 

 

 

1. Shuttle race cover assy

 

 

 

2. Plain washers [2 pcs]

 

 

 

3. Wave washers [2 pcs]

 

 

 

4. Shoulder screws [2 pcs]

Insert this part of the belt cover into the upper cover, install it

5. Face plate assy

with the two screws, and then tighten the upper cover screw.

6. Screws [3 pcs]

 

 

 

7. Eye guard assy

 

 

 

 

 

 

 

 

 

8. Screws [2 pcs]

 

 

 

9. Bed cover, R

 

 

 

10.

Screws [4 pcs]

 

 

 

11.

Bed cover, LR

 

 

 

12.

Screw

 

 

 

13.

Bolts [2 pcs]

 

 

 

14.

Bed cover, LF

 

 

 

15.

Screws [4 pcs]

 

 

 

16.

Frame side cover

 

 

 

17.

Screws [4 pcs]

 

 

 

18.

Top cover

 

 

 

19.

Plain washers [3 pcs]

 

 

3443Q

20.

Screws [3 pcs]

 

 

21.

Belt cover

 

 

 

 

 

 

22.

Screws [2 pcs]

97

KE-430B,430C series

4. ASSEMBLY

KE-434B,435B, 436BKE-434C,435C, 436C, 484C

<KE-435B,435C><KE-436B,436C>

Provisionally tighten this screw, and then fully tighten it after installing the belt cover.

3444Q

1)Insert horizontally from the front so that the X-feedlever cover is on top.

X-feedlever cover

2) Loosen the four screws and make fine adjustments to the height of the needle plate auxiliary plate so that it is at the same height as the needle plate.

3445Q

Insert this part of the belt cover into the upper cover, install it with the two screws, and then tighten the upper cover screw.

3446Q

1.Auxiliary plate supports [4 pcs]

2.Screws [4 pcs]

3.Needle plate auxiliary plate

4.Screws [4 pcs]

5.Auxiliary plate supports [2 pcs]

6.Washers [4 pcs]

7.Screws [4 pcs]

8.Screws [4 pcs]

9.Shuttle race cover assy

10.Plain washers [2 pcs]

11.Wave washers [2 pcs]

12.Shoulder screws

[2 pcs]

13.Face plate assy

14.Screws [3 pcs]

15.Bolts [2 pcs]

16.Eye guard assy

17.Screws [2 pcs]

18.Bed cover, R

19.Screws [4 pcs]

20.Bed cover, LR

21.Screw

22.Bolts [2 pcs]

23.Bed cover, LF

24.Screws [4 pcs]

25.Frame side cover

26.Screws [4 pcs]

27.Top cover

28.Plain washers [3 pcs]

29.Screws [3 pcs]

30.Belt cover

31.Screws [2 pcs]

KE-430B,430C series

98

5. ADJUSTMENT

. ADJUSTMENT

CAUTION

Maintenance and inspection of the sewing machine should only be carried out by a qualified technician.

Ask your Brother dealer or a qualified electrician to carry out any maintenance and inspection of the electrical system.

Turn off the power switch and disconnect the power cord from the wall outlet at the following times, otherwise the machine may operate if the foot switch is depressed by mistake, which could result in injury.

When carrying out inspection, adjustment and maintenance

When replacing consumable parts such as the rotary hook and knife

Disconnect the air hoses from the air supply and wait for the needle on the pressure gauge to drop to “0” before carrying out inspection, adjustment and repair of any parts which use the pneumatic equipment.

If the power switch and air need to be left on when carrying out some adjustment, be extremely careful to observe all safety precautions.

Hold the machine head with both hands when tilting it back or returning it to its original position. Furthermore, after tilting back the machine head, do not push the face plate side or the pulley side from above, as this could cause the machine head to topple over, which may result in personal injury or damage to the machine.

Use only the proper replacement parts as specified by Brother.

If any safety devices have been removed, be absolutely sure to re-installthem to their original positions and check that they operate correctly before using the machine.

Any problems in machine operation which result from unauthorized modifications to the machine will not be covered by the warranty.

- .Adjusting the needle bar height

3450Q

<KE-435B,435C><KE-436B,436C>

 

2721Q

2553Q

 

<When using a DP x 17 needle>

Turn the machine pulley to move the needle bar to the lowest position. Then remove the rubber plug (2), loosen the set screw (3) and then move the needle bar up or down to adjust so that the second reference line from the bottom of the needle (reference line A) is aligned with the lower edge of the needle bar bush (1).

<When using a DP x 5 or TQ X1 needle>

Turn the machine pulley to move the needle bar to the lowest position. Then remove the rubber plug (2), loosen the set screw (3) and then move the needle bar up or down to adjust so that the highest reference line (reference line a) is aligned with the lower edge of the needle bar bush (1).

99

KE-430B,430C series

 

 

 

5. ADJUSTMENT

 

 

 

 

 

 

- .Adjusting the needle bar lift amount

 

 

 

 

 

 

 

 

 

3413Q

Needle center line

0135Q

Tip

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<KE-430Cseries,BE-438C>

 

 

 

 

<KE-484C>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2464Q

 

 

 

 

 

 

 

 

3200Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<KE-430Bseries,BE-438B>

 

 

 

 

 

 

 

 

 

 

 

 

 

Support

Felt

 

 

 

 

 

Wick

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Felt

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Felt

holder

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When returning the felt support, place it as shown in

 

Turn the support in the

 

 

 

 

 

 

 

 

 

 

the illustration so as not to clamp the felt, and then

 

direction of the arrow, and

 

 

 

 

gently press the felt and the wick.

 

 

 

remove the felt holder.

3451Q

 

 

 

 

3420Q

3421Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<When using a DP x 17 needle>

Turn the machine pulley to raise the needle bar from the lowest position until the lowest reference line on the needle (reference line B) is aligned with the lower edge of the needle bar bush (1). Then loosen the screw (2) and move the driver (3) to adjust so that the tip of the rotary hook is aligned with the needle center line.

<KE-484C>

Turn the machine pulley to raise the needle bar from the lowest position until the lowest reference line on the needle (reference line B) is aligned with the lower edge of the needle bar bush (1). Then loosen the set screw (2) and move the rotary hook to adjust so that the tip of the rotary hook is aligned with the needle center line.

<When using a DP x 5 or TQ X1 needle>

Turn the machine pulley to raise the needle bar from the lowest position until the second reference line from the top of the needle (reference line B) is aligned with the lower edge of the needle bar bush (1). Then loosen the screw (2) and move the driver (3) to adjust so that the tip of the rotary hook is aligned with the needle center line.

KE-430B,430C series

100

5. ADJUSTMENT

- .Adjusting the driver needle guard

* The KE-484Cdoes not have a driver needle guard.

Needle center line

Tip

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0135Q

 

2555Q

2556Q

Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw

(2) and turn the eccentric shaft (3) to adjust so that the driver needle guard (1) contacts the needle.

If the needle contact pressure is too great, skipped stitches may occur. On the other hand, if the driver needle guard (1) is not touching the needle, the tip of the inner rotary hook will obstruct the needle, resulting in an excessively high amount of friction.

- .Adjusting the needle clearance

<KE-430Bseries,KE-430Cseries,BE-438B,438C>

0.01 - 0.08 mm

0138Q

 

 

 

2557Q

 

 

 

 

Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw

(1) and turn the eccentric shaft (2) to adjust so that the clearance between the needle and the rotary hook is 0.01 - 0.08 mm.

<KE-484C>

Turn the machine pulley to align the tip of the rotary hook (1) with the needle center line. Then loosen the set screw (2) to adjust so that the clearance between the needle and the rotary hook (1) is 0.01 - 0.08 mm.

3201Q

101

KE-430B,430C series

5. ADJUSTMENT

- .Adjusting the shuttle race thread guide

The position of the shuttle race thread guide is adjusted at the time of shipment from the factory. It should not be changed if at all possible.

* The KE-484Cdoes not have a shuttle race thread guide.

3452Q

<KE-432B,432C>

<BE-438B,438C>

3562Q

1.Remove the arm assembly (1), the feed plate (2) and the needle plate (3).

Remove the button clamp assembly (1), the feed plate (2) and the needle plate (3). [BE-438B,438C]

2.While pushing the shuttle race thread guide (4) in the direction of the arrow, set the needle groove to the center position.

Note:

If the shuttle race thread guide is in the wrong position, thread breakages, soiled thread or catching of the thread may occur.

KE-430B,430C series

102

5. ADJUSTMENT

- .Adjusting the clearance between the shuttle hook and bobbin case holder position bracket(KE-484C)

Approx. 0.8mm

3453Q

Loosen the screw (3) and move the hook stopper setting base (4) to adjust so that the tip of the bobbin case holder position bracket (1) is approximately 0.8 mm away from the needle drop surface.

103

KE-430B,430C series

5. ADJUSTMENT

- .Adjusting the work clamp lift amount(KE-430B,430C, 431B, 431C, 433B)

The maximum work clamp lift amount is 17 mm from the top of the needle plate.

The lift amount for each model is adjusted as shown in the table at the time of shipment.

0151Q 2566Q

17mm max.

 

 

KE-430B,430C

 

KE-431B,431C

 

KE-433B

 

 

 

 

 

 

 

 

 

 

 

spec.

-1,-5

 

-2

 

-7

-2,-3

-1

-2

-7

Lift amount

10+10 mm

 

14 +10 mm

 

9 +10mm

10+10 mm

10+10 mm

14+10 mm

9 +10 mm

1.To adjust the work clamp lift amount, loosen the bolt (1) and move the presser arm lever plate (2) up or down.

2.Apply grease to the bottom of the presser plate (3) to the top of the presser arm lever plate (2) and to the sliding part of the work clamp (4) (grease is already applied at the time of shipment), and check that the movement becomes easier.

3.Check that there is a gap between the presser arm lever plate (2) and the presser plate (3) when the work clamp (4) is lowered.

*If movement is sluggish when the work clamp (4) is being raised and lowered, it may not be possible to increase the work clamp (4) lift amount.

*If the work clamp (4) cannot be raised or lowered, error code “E-61”or“E-63”will be displayed.

- .Adjusting the work clamp lift amount(KE-432B,432C)

The maximum work clamp lift amount is 17 mm from the top of the needle plate when the machine is stopped. The lift amount is adjusted 13 +10 mm at the time of shipment.

17mm max.

2567Q

2568Q

While the machine is stopped, loosen the bolt (1) and move the presser roller attachment plate (2) vertically to adjust the lift amount.

*When making this adjustment, check to see if the work clamp will open. Also, readjust the closing distance of the work clamp according to the second procedure of “5-13.Work clampclosing-distanceadjustment”.

*Loosen the nut (5) and turn the stop lever adjusting screw (6) to adjust the position of the stop lever (3) so that it does not touch the adjusting ring (4) when the work clamp is raised.

*If the work clamp cannot be raised or lowered, error code “E-61”or“E-63”will be displayed.

KE-430B,430C series

104

5. ADJUSTMENT

- .Adjusting the work clamp lift amount(KE-434B,434C, 435B, 435C, 436B, 436C, 484C)

Work clamp lifter

Solenoid type

Pneumatic type

Pneumatic type (inner clamping device)

 

 

 

 

Max. lift amount from the top of

17mm

25mm

17mm

the needle plate

 

 

 

The lift amount is adjusted as shown in the table at the time of shipment.

 

KE-434B,434C, 435B, 435C, 436B, 436C

KE-484C

 

 

 

 

Uses

Medium materials

Heavy materials

-

Lift amount

10 +10 mm

14 +10 mm

17mm

[Solenoid type]

17mm max.

0339Q

2617Q

To adjust the work clamp lift amount, loosen the bolt (1) and move the presser arm lever plate (2) up or down.

*If movement is sluggish when the work clamp (3) is being raised and lowered, it may not be possible to increase the work clamp (3) lift amount.

Apply grease to the bottom of the presser plate (4) to the top of the presser arm lever plate (2) and to the sliding part of the work clamp (3) (grease is already applied at the time of shipment), and check that the movement becomes easier.

*If the work clamp (3) cannot be raised or lowered, error code “E-61”or“E-63”will be displayed.

*Check that there is a gap between the presser arm lever plate (2) and the presser plate (4) when the work clamp (3) is lowered.

[Pneumatic type]

25mm max.

(17 mm max. for machines with inner clamping device)

3454Q

1.Raise the work clamp (1) and loosen the screws (2).

2.Adjust the work clamp lift by moving the presser levers (3) and (4) up and down and then tighten the screws (2).

*If movement is sluggish when the work clamp (1) is being raised and lowered, it may not be possible to increase the work clamp (1) lift amount.

Apply grease to the sliding part of the work clamp (1) (grease is already applied at the time of shipment), and check that the movement becomes easier.

In addition, check that the air tubes are routed correctly.

105

KE-430B,430C series

5. ADJUSTMENT

- .Adjusting the button clamp lift amount(BE-438B,438C)

The maximum button clamp lift amount is 13 mm from the top of the needle plate. The lift amount is adjusted 10 +10 mm at the time of shipment.

max.

2666Q

Remove the button clamp presser spring (1), loosen the screw (2) and adjust the button clamp holder hook (3) by moving it up and down.

* If the button clamp cannot be raised or lowered, error code “E-61”or“E-63”will be displayed.

KE-430B,430C series

106

5. ADJUSTMENT

- .Work clamp pressure adjustment(KE-432B,432C)

Loosen the lower adjusting ring (1) as much as possible (to the extent that the material being sewn does not slip and alter the pattern). Then, adjust the pressure by turning the upper adjusting ring (2).

2569Q

Removal of the work clamp spring

Lower the work clamp, then place the adjusting ring

(3) in the hole of the frame, remove the tip of the adjusting screw from the lever holder (4), and remove the work clamp spring (5).

2570Q

- .Adjusting the holding pressure(BE-438B,438C)

Loosen the adjusting nut (1) and turn the adjusting nut (2) to the point where it is just tight enough that the material will not slip out of place when it is slightly pulled (keep pressure as slight as possible).

2667Q

107

KE-430B,430C series

5. ADJUSTMENT

- .Work clampclosing-distanceadjustment(KE-432B,432C)

0.3 - 0.5mm

0157Q

2571Q

2572Q

1.With the presser closing lever (1) pushed all the way by hand in the direction of the arrow in the illustration, loosen the nut (2) and move the presser closing roller (3) so that the gap is 0.3 - 0.5 mm when the work clamp is closed while the sewing machine is in operation.

*As the presser closing roller (3) is brought closer to the presser closing lever (1), the gap of the work clamp is narrowed. Note, however that if the presser closing roller (3) is moved closer than necessary, the operation of the presser closing lever (1) may be impaired.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8 -

9mm

3

- 4mm

 

 

 

 

 

 

 

 

 

 

2573Q

 

 

2574Q

2.By loosening the nut (6) and turning the stop lever adjusting screw (7), adjust the stop lever (4) so that it separates from the stop position adjusting plate (5) when the work clamp is elevated 8 - 9 mm above the surface of the needle plate.

3.Loosen the nut (8) and move the work clamp so that the closing distance becomes 3 - 4 mm when the work clamp is in the lowered position. Then, push the nut (8) all the way in the direction indicated by the arrow, and tighten it.

KE-430B,430C series

108

5. ADJUSTMENT

- .Adjusting the position of the button holder(BE-438B,438C)

1. Loosen the two hexagonal bolts (1) and adjust the button holder body (2) by moving it.

2. Check that the needle will go through the button hole with no contact. (Refer to “CHECKING THE SEWING PATTERN” in the Instruction Manual.)

2668Q

- .Work clamp adjustment(KE-435B,435C, 436B, 436C)

1. Turn the pulley by hand to set the work clamp (1) to its lowest point.

2. Loosen screw (2), set the bottom of the work clamp (1) lightly against the work piece, and then tighten screw (2).

Note:

If the work clamp is lowered too far, the work piece will shift when sewing. Also, if the work clamp is too high, skipped stitches may occur.

3. Turn the pulley by hand, and make sure the needle enters the center of the needle hole in the work clamp (1). If the needle is not aligned with the center of the needle hole, remove cap (3), loosen screw (4), and turn the work camp (presser bar) to adjust.

3563Q

109

KE-430B,430C series

5. ADJUSTMENT

- .Changing the work clamp lift(KE-435B,435C, 436B, 436C)

Standard lift amount of the work clamp (1) is 3 mm (max. 8 mm).

3 - 5mm

Increase

Decrease

 

 

0.5 - 1mm

2626Q

2483Q

2627Q

Adjusting work clamp lift to 3 - 5 mm

1.Loosen the screw (2) and open the stepping cover (3).

2.Loosen the nut (4) and adjust the stepping work clamp connecting rod (5) position.

*If you would like to increase the work clamp lift, move the stepping work clamp connecting rod (5) up, and if you would like to decrease it, move the stepping work clamp connecting rod (5) down.

Adjusting work clamp lift to 5 - 8 mm

1.Loosen the screw (2) and open the stepping cover (3).

2.Loosen the nut (4) and adjust the stepping work clamp connecting rod (5) position.

*If you would like to increase the work clamp lift, move the stepping work clamp connecting rod (5) up, and if you would like to decrease it, move the stepping work clamp connecting rod (5) down.

3.Remove the face plate and turn the pulley by hand to set the work clamp to its lowest point. Loosen the bolt (9) of stepping work clamp arm R (8). Adjust the clearance between the presser bar lifter (6) and the presser bar bush (7) to 0.5 - 1 mm.

<If vertical movement of the work clamp is not required>

1. Remove the face plate (1).

2. Remove the shoulder screw (2) and re-attachthe stepping link assembly (3) to the upper screw hole (a) of the stepping work clamp arm F (13).

3455Q

3456Q

KE-430B,430C series

110

5. ADJUSTMENT

- .Adjusting the thread wiper

[Solenoid type]

3457Q

<KE-432B,432C>

<BE-438B,438C>

3459Q

3458Q

Needle point

Approx.

20mm

3460Q

2579Q

 

1.Remove the top cover (1) and the work clamp arm assembly (2).

Remove the top cover (1) and the button clamp assembly (2). [BE-438B,438C]

2.While the sewing machine is stopped, loosen the set screw (5) and move the thread wiper arm assembly (6) up or down to adjust so that the clearance between the tip of the needle and the top of the wiper is 2 ± 0.5 mm when the link assembly C (3) of the work clamp lifter mechanism is pushed and the thread wiper (4) has passed below the needle.

*This adjustment should be made while the sewing machine is stopped. Be careful not to turn the machine pulley, otherwise the tip of the needle will move.

3.Remove the rubber cap (7) and loosen the set screw (8) to adjust the thread wiper so that it is approximately 20 mm from the needle when it is at the standby position.

111

KE-430B,430C series

5. ADJUSTMENT

[Pneumatic type]

 

3653Q

3462Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Needle point

Approx.

30mm

3461Q

2579Q

1.While the sewing machine is stopped, loosen the set screw (3) and move the thread wiper arm assembly (4) up or down to adjust so that the clearance between the tip of the needle and the top of the wiper is 2 ± 0.5 mm when the thread wiper connecting rod assembly (1) is pushed up and the thread wiper (2) has passed below the needle.

*This adjustment should be made while the sewing machine is stopped. Be careful not to turn the machine pulley, otherwise the tip of the needle will move.

2.Loosen the two bolts (5) and move the wiper solenoid cover (6) up or down so that the thread wiper is approximately 30 mm from the needle when it is at the standby position.

[Stepping foot specifications]

2725Q

2727Q

 

 

 

 

 

 

 

 

 

Needle plate

3463Q

2726Q

1.While the sewing machine is stopped, loosen the set screw (3) and move the thread wiper arm assembly (4) up or down to adjust so that the clearance between the needle plate and the bottom of the wiper is 15–16mm when the thread wiper connecting rod assembly (1) is pushed up and the thread wiper (2) has passed below the needle.

2.Loosen the two bolts (5) and move the solenoid cover (6) up or down so that the thread wiper is approximately 35 mm from the needle when it is at the standby position.

KE-430B,430C series

112

5. ADJUSTMENT

[KE-484C]

 

3465Q

3466Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Needle point

Approx.

38mm

3464Q

3216Q

1.While the sewing machine is stopped, loosen the set screw (3) and move the thread wiper arm assembly (4) up or down to adjust so that the clearance between the tip of the needle and the top of the wiper is 2 ± 0.5 mm when the thread wiper connecting rod lever (1) is pushed up and the thread wiper (2) has passed below the needle.

* This adjustment should be made while the sewing machine is stopped. Be careful not to turn the machine pulley, otherwise the tip of the needle will move.

2.Loosen the two bolts (5) and move the cylinder cover (6) up or down so that the thread wiper is approximately 38 mm from the needle when it is at the standby position.

113

KE-430B,430C series

5. ADJUSTMENT

- .Adjusting the threadtake-upamount

[KE-430B,430C, 431B, 431C, 432B, 432C, 433B, 434B, 434C,BE-438B,438C]

At the time of shipment from the factory, the thread take-upamount (stroke) of the threadtake-uplever (1) is adjusted as shown in the table below. You may need to adjust this setting depending on the sewing conditions to prevent the thread from pulling out at the sewing start.

 

KE-430B,430C

KE-431B,431C

KE-433B

KE-432B,432C, 434B, 434C

 

BE-438B,438C

 

 

 

 

 

 

Spec.

1, -5

2, 7

2, 3

-1

-2,-7

-

 

 

 

 

 

 

 

Thread take-up

5mm

0mm

0mm

5mm

0mm

5mm

amount

 

 

 

 

 

 

Thread take-upamount (stroke)

Become less

Become greater

3467Q

2560Q

Loosen the screw (2) and move the stopper (3.57 nut) (3) to adjust the operating angle of the thread take-upsolenoid (4).

*To reduce the thread take-upamount, move the stopper (3) upward.

*To increase the thread take-upamount, move the stopper (3) downward.

Note:

If the stroke of the thread take-uplever (1) is shorter than necessary, the needle thread trailing length may become too short and the thread may come out of the needle. Furthermore, if it is larger than necessary, the needle thread trailing length may become too long and the underside of the article being sewn may become untidy.

KE-430B,430C series

114

5. ADJUSTMENT

[KE-435B,435C, 436B, 436C]

At the time of shipment from the factory, the thread take-upamount (stroke) of the threadtake-uplever (1) is set to the standard setting of 5 mm. You may need to adjust this setting depending on the sewing conditions to prevent the thread from pulling out at the sewing start.

Thread take-upamount (stroke)

Become greater

Become less

3467Q

2722Q

Loosen the screw (2) and move the stopper (3.57 nut) (3) to adjust the operating angle of the thread take-upsolenoid (4).

*To reduce the thread take-upamount, move the stopper (3) downward.

*To increase the thread take-upamount, move the stopper (3) upward.

Note:

If the stroke of the thread take-uplever (1) is shorter than necessary, the needle thread trailing length may become too short and the thread may come out of the needle. Furthermore, if it is larger than necessary, the needle thread trailing length may become too long and the underside of the article being sewn may become untidy.

[KE-484C]

At the time of shipment from the factory, the thread take-upamount (stroke) of the threadtake-uplever (1) is set to the standard setting of 7 mm. You may need to adjust this setting depending on the sewing conditions to prevent the thread from pulling out at the sewing start.

Thread take-upamount (stroke)

 

 

 

3202Q

3203Q

Loosen the nut (2) and move the stopper (bolt) (3) to adjust the protruding position of the cylinder (4).

*To reduce the thread take-upamount, tighten the stopper (3).

*To increase the thread take-upamount, loosen the stopper (3).

Note:

If the stroke of the thread take-uplever (1) is shorter than necessary, the needle thread trailing length may become too short and the thread may come out of the needle. Furthermore, if it is larger than necessary, the needle thread trailing length may become too long and the underside of the article being sewn may become untidy.

115

KE-430B,430C series

5. ADJUSTMENT

- .Adjusting the movable knife

[KE-430Cseries]

Mark

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2561Q

2465Q

 

1.Remove the top cover (1) while making this adjustment.

2.Turn the pulley by hand to set the needle bar to its lowest point.

3.Press down on the plunger (2) of the thread trimming solenoid as far as it will go, and fit the roller (3) into the groove of the thread trimmer cam (4).

4.In this condition, turn the machine pulley to align the position of the roller (3) with the mark on the thread trimmer cam (4).

2562Q

 

 

 

2563Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.Loosen the nut (6) and move the connecting rod lever (7) to the left or right to adjust so that the V section A is aligned with the index mark B on the needle plate when in this condition (the procedure 3.) and the movable knife (5) is pushed to the machine pulley side so that there is no play.

KE-430B,430C series

116

5. ADJUSTMENT

[KE-484C]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3206Q

 

 

 

 

3207Q

 

 

 

 

 

Loosen the nut (2) and move the connecting rod lever (3) to the left or right to adjust so that the V section A is aligned with the index mark B on the needle plate when the sewing machine in the stopped position and the movable knife (1) is pushed to the machine pulley side so that there is no play.

[KE-430Bseries]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3505Q

 

3468Q

 

 

 

 

 

Loosen the nut (2) and move the connecting rod lever (3) to the left or right to adjust so that the V section A is aligned with the index mark B on the needle plate when the sewing machine in the stopped position and the movable knife (1) is pushed to the machine pulley side so that there is no play.

117

KE-430B,430C series

5. ADJUSTMENT

- - .Replacing the movable knife and fixed knife

(KE-430B,430C, 431B, 431C, 432B, 432C, 433B,BE-438B,438C)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2564Q

 

 

2466Q

 

 

 

 

 

1.Open the large shuttle hook cover, remove the screws (1) and (2), and then remove the feed plate (3).

2.Remove the two screws (4) and the two screws (5), and then remove the needle plate (6).

3.Remove the thread trimmer connecting rod (7) from the connecting rod lever pin (8).

3469Q

 

 

 

2945Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.Remove the movable knife (9) and replace it with a new one. At this time, check that the movable knife (9) and the fixed knife (10) cut the thread cleanly. If necessary, adjust by using the appropriate movable knife washer

(11) (supplied as accessories).

*Apply grease to the outside of the collar (12) at this time.

5.Install the fixed knife (10) at a distance of 0.5 mm from the needle hole plate (13).

6.Place the thread trimming connecting rod (7) onto the connecting rod lever pin (8), and then install to the needle plate (6).

KE-430B,430C series

118

5. ADJUSTMENT

- - .Replacing the movable knife and fixed knife(KE-434B,434C, 435B, 435C, 436B, 436C)

2615Q

2485Q

 

 

1.Open the large shuttle hook cover, remove the bolts (1) and the feed plate (2).

2.Remove the two screws (3) and the two screws (4), and then remove the needle plate (5).

3.Remove the thread trimmer connecting rod (6) from the connecting rod lever pin (7).

3470Q

 

 

 

2947Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.Remove the movable knife (8) and replace it with a new one. At this time, check that the movable knife (8) and the fixed knife (9) cut the thread cleanly. If necessary, adjust by using the appropriate movable knife washer (10) (supplied as accessories).

*Apply grease to the outside of the collar (11) at this time.

5.Install the fixed knife (9) at a distance of 0.5 mm from the needle hole plate (12).

6.Place the thread trimming connecting rod (6) onto the connecting rod lever pin (7), and then install to the needle plate(5).

119

KE-430B,430C series

5. ADJUSTMENT

- - .Replacing the movable knife and fixed knife(KE-484C)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2615Q

 

 

3208Q

 

 

 

 

 

 

 

1.Open the large shuttle hook cover, remove the bolts (1) and the feed plate (2).

2.Remove the two screws (3) and the two screws (4), and then remove the needle plate (5).

3.Remove the two screws (6) and the feed bar guide plate FF (7).

4.Remove the thread trimmer connecting rod (8) from the connecting rod lever pin (9).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3209Q

 

3210Q

5.Remove the movable knife (10) and replace it with a new one. At this time, check that the movable knife (10) and the fixed knife (11) cut the thread cleanly. If necessary, adjust by using the appropriate movable knife washer (12) (supplied as accessories).

*Apply grease to the outside of the collar (13) at this time.

6.Install the fixed knife (11) at a distance of 0.5 mm from the needle hole plate (14).

7.Place the thread trimming connecting rod (8) onto the connecting rod lever pin (9), and then install to the needle plate(5).

KE-430B,430C series

120

5. ADJUSTMENT

- - .Adjusting the engagement of the movable knife and fixed knife

3471Q

0149Q

Fig. 1

Movable knife

 

Shoulder

 

 

 

screw

Cutting

Fixed knife

 

 

 

 

edge

 

 

 

Cutting

 

 

 

edge

 

 

 

 

 

Cutting edge

Cutting edge

0150Q

0149Q

KE-484C

Shoulder

Cutting edge

Fig. 1

Cutting

 

screw

edge

 

Movable knife

Fixed knife

Cutting edge

Cutting edge

3472Q

3213Q

A.After the movable knife and fixed knife are properly engaged, tighten the screw as shown in Fig. 1.

B.Turn the movable knife (in the direction of the arrow) while the screw is still tightened.

C.Loosen the screw.

D.Turn the movable knife (in the direction of the arrow) while the screw is still loosened.

Repeat above steps A , B, C and D four or five times to maintain the cutting performance of the knife.

121

KE-430B,430C series

5. ADJUSTMENT

- .Adjusting the position of the thread trimming link mechanism

3473Q

 

 

3474Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3475Q

1.Remove the top cover (1).

2.Loosen the two bolts (4) and adjust the position of the driving lever stopper (3) so that distance A between the thread driving lever (2) and the driving lever stopper (3) shown in the illustration is 6 mm.

3.Loosen the nut (5) and use the adjusting screw (6) to adjust the position of the thread driving lever (2) so that the clearance B between the thread driving lever (2) and the driving lever stopper (3) is 0.25 ± 0.05 mm.

4.Turn the machine pulley so that the set screw (8) at the front of the thread trimmer cam (7) in the direction of rotation is facing upward, and then push the plunger (10) of the thread trimmer solenoid (9) in as far as it will go and check that it returns smoothly when the roller (11) is in the slot.

5.Loosen the two screws (12) and adjust the position of the thread trimmer solenoid (9) so that the clearance between the thread driving lever (2) and the driving lever stopper (3) is 0.5 mm when the plunger (10) of the thread trimmer solenoid (9) is pushed in as far as it will go.

KE-430B,430C series

122

5. ADJUSTMENT

- .Adjusting the backlash

3476Q

 

 

 

3477Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.Loosen the set screw (1), and move the rock gear (2) to the left and right so that the pulley can rotate easily.

2.Turn the rock gear shaft (3) to adjust the play at the end of the driver (4) to 0.05 – 0.12 mm, and tighten the set screw (1).

<KE-484C>

Tip of the rotary hook

3478Q

 

3479Q

 

1.Loosen the set screw (1), and move the lower shaft timing pulley (2) to the left and right so that the pulley can rotate easily.

2.Turn the lower shaft (3) and adjust the play in the rotary hook tip to 0.05–0.12mm, and then tighten the set screw (1).

123

KE-430B,430C series

5. ADJUSTMENT

- .Adjusting the presser solenoid position (Solenoid specifications)

3457Q

<KE-432B,432C>

<BE-438B,438C>

Seen from above

 

 

 

 

 

 

3480Q

3481Q

1.Remove the top cover (1) and the work clamp arm assembly (2).

Remove the top cover (1) and the button clamp assembly (2). [BE-438B,438C]

2.Remove the two rubber caps (3), and loosen the two screws (4) of the solenoid setting plate B.

3.Loosen the four screws (5), set the presser solenoid (6) so that it is 110 ± 0.2 mm from the edge of the arm, and then tighten the screws (4) and (5) in that order.

Note:

If this adjustment is not done correctly, the work clamp may not lift or drop and error E-60may be displayed.

KE-430B,430C series

124

5. ADJUSTMENT

- .Adjusting the sensor perceive plate position (Solenoid specifications)

3457Q

<KE-432B,432C>

<BE-438B,438C>

1.Remove the top cover (1) and the work clamp arm assembly (2).

Remove the top cover (1) and the button clamp assembly (2). [BE-438B,438C]

3482Q

3484Q

3483Q

2.Remove the rubber cap (3) from the side of the arm. Approx. 5mm

3.Turn on the power switch.

4.While the X-SCALEindicator (4) on the operation panel is illuminated, hold down the TEST switch (5) and press the RESET switch (6) to activate input sensor check mode.

5.Press the SELECT switch (7) to illuminate the COUNTER indicator (8).

*The display (9) will show the work clamp signal status (ON, OFF).

6.Loosen the bolt (11) and move the sensor perceive plate (12) forward or back to adjust so that the work clamp signal is ON when the link C assembly (10) of the work clamp lifter mechanism is pushed so that the wiper is at the position shown in the illustration.

125

KE-430B,430C series

5. ADJUSTMENT

- .Adjusting the home position

KE-430B,KE-430C,KE-431B,KE-431C,KE-432B,KE-432C,KE-433B,BE-438B,BE-438C…Refer to [A].KE-434B,KE-434C,KE-435B,KE-435C,KE-484C…Refer to [B].

KE-436B,KE-436C…Refer to [C].

[A]

[B], [C]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3485Q

3486Q

1. Install the home position standard plate (1) to the feed bracket (2) with the two screws (3).

3487Q

 

[A], [B]

 

 

 

2.

Turn on the power switch.

 

 

 

 

3.

Press the SELECT switch (4) until the

 

 

 

 

 

PROGRAM NO. indicator illuminates.

 

 

 

 

4.

Press the DISPLAY SET switches (5) until the

 

 

 

 

 

program number [0] is flashing in the display

 

 

 

 

 

 

 

 

 

 

window, then depress the foot switch.

 

 

 

 

 

* The display will stop flashing and illuminate

 

 

 

 

 

steadily, and the feed mechanism will move to

 

 

 

 

 

 

 

 

 

 

the origin points for X and Y feed.

 

 

 

 

[C]

 

 

 

 

 

 

 

2.

Connect the programmer connector (6) to the

 

 

 

 

 

operation panel.

 

 

 

3.

Turn on the power switch.

 

 

 

4.

Press the P key (7) on the programmer.

 

 

 

 

 

 

 

 

* The feed mechanism will move to the origin

 

 

 

3488Q

points for X and Y feed.

 

 

 

 

 

 

 

 

 

 

3489Q

KE-430B,430C series

126

5. ADJUSTMENT

[A]

[B], [C]

 

 

 

 

 

 

 

 

3490Q

3491Q

5. Turn the pulley by hand and check at what point the needle drops to the home position standard plate. If the needle does not drop to point (a), carry out the following adjustments.

Note:

Be careful not to let the needle touch the home position standard plate.

3492Q

[A]

 

 

 

 

X direction

Y direction

 

 

[B], [C]

 

 

 

 

X direction

Y direction

(Seen from the side)

3493Q

6.Turn off the power switch.

7.Loosen the screws (8), and then adjust by turning the home position dog (9). (Refer to the next page.)

8.After adjusting, turn on the power switch and repeat the check in step 5.

127

KE-430B,430C series

 

 

 

 

5. ADJUSTMENT

 

 

 

 

 

 

 

Adjusting the X direction

 

 

 

 

 

 

 

 

 

 

 

 

3494Q

 

3496Q

 

 

[A]

 

[B], [C]

 

 

 

Needle drops to the

Needle drops to the left

Needle drops to the

Needle drops to the left

 

 

right of point a

of point a

right of point a

of point a

 

 

Turn the home position

Turn the home position

Turn the home position

Turn the home position

 

 

dog for feed cam X to

dog for feed cam X to

dog for feed lever X to

dog for feed lever X to

 

 

the right

the left

the back

the front

 

 

 

3495Q

 

3497Q

 

 

 

 

 

 

 

 

Adjusting the Y direction

 

 

 

 

 

 

 

 

 

 

 

3498Q

 

3500Q

 

 

[A]

 

[B], [C]

 

 

 

Needle drops in front of

Needle drops behind

Needle drops in front of

Needle drops behind

 

 

point a

point a

point a

point a

 

 

Turn the home position

Turn the home position

Move the home position

Move the home position

 

 

dog for feed cam Y to

dog for feed cam Y to

dog for feed lever Y to

dog for feed lever Y to

 

 

the right

the left

the right

the left

 

 

 

3499Q

 

3501Q

 

 

 

 

 

 

 

KE-430B,430C series

128

5. ADJUSTMENT

- .Adjusting the needle up stop position

Feed mechanism operates.

Material

Feed mechanism stops

2576Q

3502Q

Loosen the screw (5) (at the U side on the pulley), and turn the pulley (1) so that the mark (2) on the pulley is inside the mark (4) of the belt cover (3). The pulley (1) will stop more slowly if the screw (5) is moved counter to the normal direction of rotation, and will stop more quickly if the screw (5) is moved in the normal direction of rotation.

The standard position is when the needle bar is lowered approximately 5.5 mm from its highest position.

Timing between the needle and the feed mechanism is adjusted so that the feed mechanism starts operating after the needle comes out of the material sewn, and stops before the needle penetrates the material.

Note:

The screw (6) at the “D” mark is an adjusting screw for the needle down detection function and is adjusted to match the feed timing, so it should not be loosened.

The screw (7) is a screw for detecting the machine stop position, and should not be loosened.

- .Adjusting the tension of the upper shaft timing belt

 

1. Loosen the three bolts (1).

Approx. 2.5 - 3.0mm

2. Turn the bolt (3) in the tightening direction to

 

adjust the position of the motor bracket (4) so

 

that there is approximately 2.5–3.0mm of

 

deflection in the upper shaft timing belt (2) when

 

the middle of the belt is pressed with a force of

 

10 N.

3576Q

129

KE-430B,430C series

5. ADJUSTMENT

- .Checking the head position switch

Check that the head position switch is turned on as shown in the illustration.

Note:

If the head position switch is not turned on, error E-17(error E.16 for theKE-436B/436C)will be displayed.

3510Q

KE-430B,430C series

130

5. ADJUSTMENT

- .Work clamp interchangeability(KE-433B)

The KE-430B,430C work clamp can also be used with theKE-433B.

Remove the screw (1), washer (2) and cover support stand (3), and then change the installation position for the work clamp arm assembly (4) from the standard installation position A to installation position B.

3503Q

- .Work clamp interchangeability

(KE-434B,434C, 435B, 435C, 436B, 436C, 484C)

2619Q The work clamp for theBAS-311Fcan be used. Replace the feed bar guide cover (1) with the feed bar guide cover assembly, LL (2) (optional).

Then, change the installation position for the presser arm assembly (3) from the standard installation position A to installation position B.

To alternate use between the normal work clamp and the BAS-311Fwork clamp

Use the optional work clamp 434EMK2 air (5) with the work clamp (4). It can then be used interchangeably with the BAS311F work clamp (6) at installation position B.

3504Q

131

KE-430B,430C series

5. ADJUSTMENT

- .Adjustment of air pressure (Pneumatic specifications)

 

Increase pressure

 

 

2621Q

1. Air pressure should be 0.5 Mpa.

 

 

 

 

 

The air pressure can be adjusted by pulling up

 

 

 

 

 

and turning the control knob (2) on the

 

 

Increase pressure

 

 

integrator (1).

 

 

 

After adjustment is complete, push the control

 

 

 

 

 

 

 

 

 

 

knob (2) downward to lock it.

 

 

 

 

 

 

 

 

 

 

2. Adjust the air pressure for the reversal cylinder

 

 

 

 

 

to stay within such a range that the presser

 

 

 

 

 

crank (4) rotates reversely when pressing the

 

 

 

 

 

sewing material with the pressure plate (3).

 

 

 

 

 

 

 

 

 

 

(Approx. 0.3 Mpa)

 

 

 

 

 

For adjustment, pull up and, turn the control

 

 

 

 

 

knob (6) on the air regulator (5).

 

 

 

 

 

After adjustment is complete, push the control

 

 

 

 

 

knob (6) downward to lock it.

 

 

 

 

 

 

 

 

 

 

3. If water stands in the bottle of the integrator (1),

 

 

 

 

 

turn the drain cock (7) in the direction indicated

 

 

 

 

 

by an arrow to drain the water.

 

 

 

 

 

 

2622Q

- .Adjustment of inner clamping device

Adjustment of the positioning plates

Loosen the screws (2), and adjust the position of the positioning plate R (3) so that the label (1) can be evenly laid out between the front and back seams (A).

Next, loosen the screws (4), and adjust the position of the positioning plate L (5) so that the presser plate can be evenly laid out between the left and right seams (B).

2623Q

Adjustment of the presser crank horizontal position

Loosen the nut (3) and push in or pull out the adjusting bolt (4) so that the presser crank (2) can be horizontal when the reversal cylinder piston rod

(1) is moved to the left extreme.

2624Q

KE-430B,430C series

132

6. TROUBLESHOOTING

. TROUBLESHOOTING

CAUTION

Turn off the power switch and disconnect the power cord before carrying out troubleshooting, otherwise the machine will operate if the foot switch is depressed by mistake, which could result in injury.

Problem

 

 

 

Cause

 

 

 

 

Remedy

 

Ref.

 

 

 

 

Work clamp does not

<430, 431, 433, 434, 435, 436, 484>

Grease the sliding part of the work

P.104

rise.

 

 

Work clamp operation is sluggish.

clamp.

 

 

 

 

P.105

Button

clamp

does

 

 

 

 

 

 

 

 

 

 

Work

clamp

(Button

clamp) lift

Adjust

the

work

clamp

(button

P.104

not rise. (438)

 

amount is too great.

 

 

clamp) lift amount.

 

 

P.105

 

 

 

 

 

 

 

P.106

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Too much friction between work

 

 

 

 

 

 

 

 

 

clamp plate and work clamp arm

Grease the work clamp plate and

P.104

 

 

 

lever plate. (430, 431, 433, 434

work clamp arm lever plate.

 

P.105

 

 

 

solenoid specifications)

 

 

 

 

 

 

 

 

 

 

 

Work

clamp

is contacting

thread

Adjust

the

position

of the

thread

P.111

 

 

 

-

 

 

 

wiper.

 

 

 

 

wiper.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P.113

 

 

 

 

 

 

 

 

 

 

 

 

 

Work clamp is

not

 

 

 

 

 

 

 

 

 

 

P.65

lowered.

 

Presser lifter

link is

not

moving

Check

if the link return spring is

 

-

Button clamp is not

back.

 

 

 

 

unhooked.

 

 

 

 

 

 

 

 

 

 

P.68

lowered. (438)

 

 

 

 

 

 

 

 

 

 

 

 

Work

clamp

lift

<Solenoid specifications>

 

 

 

 

 

 

 

amount is incorrect.

Incorrect position of work clamp arm

 

 

 

 

 

 

Button

clamp

lift

lever

plate (button clamp

holder

Adjust

the

work

clamp

(button

P.104

amount

is incorrect.

hook assembly).

 

 

P.105

 

 

clamp) lift amount.

 

 

(438)

 

 

<Pneumatic specifications>

 

 

 

P.106

 

 

 

 

 

 

 

 

 

 

 

Incorrect position of work clamp arm

 

 

 

 

 

 

 

 

 

lever.

 

 

 

 

 

 

 

 

 

 

Work clamp does not

Incorrect position of presser closing

Check whether stop lever is

 

close. (432)

 

engaged

with

stop

position

P.108

 

 

 

roller.

 

 

 

 

adjusting plate or not, and adjust

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the position of presser closing roller.

 

Thread

wiper

does

 

 

 

 

 

Adjust

the

height

of the

thread

P.111

not operate correctly.

The thread wiper is obstructing the

wiper.

 

 

 

 

-

 

 

 

 

P.113

 

 

 

needle.

 

 

 

Adjust the operating distance of the

P.111

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

 

 

thread wiper.

 

 

 

 

 

 

 

 

 

 

 

 

P.113

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Adjust the operating distance of the

P.111

 

 

 

Thread wiper position is incorrect.

-

 

 

 

thread wiper.

 

 

 

 

 

 

 

 

 

 

 

 

P.113

 

 

 

 

 

 

 

 

 

 

 

 

 

Lower

thread winds

Tension stud height is incorrect.

Adjust the height of the tension

Instruction

to one side.

 

 

 

 

 

 

stud.

 

 

 

 

manual

Lower thread winding

Bobbin presser position is incorrect.

Adjust the position of the bobbin

Instruction

amount is incorrect.

 

 

 

 

 

presser.

 

 

 

manual

Thread

comes

Stitches being skipped at the

Refer to “Skipped stitches occur”

P.134

unthreaded.

 

sewing start.

 

 

 

 

 

 

 

 

 

 

 

 

Uneven needle thread.

 

 

Adjust the sub-tension.

 

Instruction

 

 

 

 

 

 

manual

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Needle thread is too short.

 

Adjust

the

thread

take-uplever

P.114

 

 

 

 

stroke.

 

 

 

 

P.115

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

133

KE-430B,430C series

6. TROUBLESHOOTING

Problem

Cause

 

 

Remedy

 

 

 

Ref.

 

 

 

 

 

 

 

 

 

 

 

Upper thread breaks.

Upper thread tension is too strong.

Adjust the upper thread tension.

 

P.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Needle is installed incorrectly.

Install the needle correctly.

 

 

 

Instruction

 

 

 

 

 

manual

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thread is too thick for the needle.

Use

the

correct

thread

for

 

the

P.5

 

 

needle.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thread take-upspring tension and

Adjust the tension and height of the

P.5

 

 

height are incorrect.

thread take-upspring.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Damaged or burred rotary hook,

File smooth or replace the affected

 

 

 

needle hole plate or needle.

part.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thread melting (synthetic thread)

Use

a

thread

 

cooling

device

P.136

 

 

(optional)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lower thread breaks.

Lower thread tension is too strong.

Adjust the lower thread tension.

 

P.5

 

 

 

 

 

 

 

 

 

 

Corners of needle hole plate or

File smooth or replace the affected

 

 

 

bobbin case are damaged.

part.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Skipped

stitches

Clearance between needle and

Adjust the needle clearance.

 

 

P.101

occur.

 

rotary hook tip is too great.

 

 

 

 

 

 

 

 

 

 

 

Incorrect needle and rotary hook

Adjust the needle bar lift amount.

P.100

 

 

timing.

 

 

 

 

 

 

 

 

 

 

 

Driver is contacting needle more

Adjust the driver needle guard.

 

 

P.101

 

 

than is necessary. (except KE-484C)

 

 

 

 

 

 

 

 

 

 

 

Needle is bent.

Replace the needle.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Needle is installed incorrectly.

Install the needle correctly.

 

 

 

Instruction

 

 

 

 

 

manual

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Needle thread is too short.

Adjust the thread take-up

lever

P.114

 

 

stroke.

 

 

 

 

 

 

P.115

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Needle breaks.

 

Adjust the needle clearance.

 

 

P.101

 

 

 

 

 

 

 

Needle is touching the rotary hook.

 

 

 

 

 

 

 

 

 

 

 

Adjust the needle bar lift amount.

P.100

 

 

 

 

 

 

 

 

 

 

 

 

 

Needle is bent.

Replace the needle.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Needle is too thin.

Use

the

correct

needle

for

 

the

P.5

 

 

material.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refer

to

“6.

CHECKING

THE

Instruction

 

 

Needle is striking the button (438)

SEWING

PATTERN”

in

 

the

 

 

 

manual

 

 

 

Instruction Manual.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Button breaks. (438)

 

Refer

to

“6.

CHECKING

THE

Instruction

 

 

Needle is striking the button

SEWING

PATTERN”

in

 

the

 

 

 

manual

 

 

 

Instruction Manual.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KE-430B,430C series

134

6. TROUBLESHOOTING

Problem

 

Cause

 

 

Remedy

 

Ref.

 

 

 

 

 

 

 

 

 

Upper thread is

not

 

 

 

 

 

 

P.118

trimmed.

 

 

Movable knife is blunt.

Replace the movable knife.

 

-

 

 

 

 

 

 

 

 

 

P.120

 

 

 

 

 

 

 

 

 

P.118

 

 

 

Fixed knife is blunt.

Sharpen or replace the fixed knife.

-

 

 

 

 

 

 

 

 

 

P.120

 

 

 

 

Adjust

the

position

of the

shuttle

P.102

 

 

 

Movable knife does not pick up the

race thread guide. (except KE-484C)

 

 

 

 

 

 

 

thread.

Adjust the needle bar lift amount.

P.100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The movable knife does not pick up

Refer to “Skipped stitches occur”.

P.134

 

 

 

the thread because of skipped

 

 

 

stitches at the sewing end.

 

 

 

 

 

 

 

 

 

Movable knife position is incorrect.

Adjust the position of the movable

P.116

 

 

 

knife.

 

 

 

 

P.117

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sub-tensionis too weak.

Turn the sub-tensionnut to adjust

Instruction

 

 

 

the tension.

 

 

 

manual

 

 

 

 

 

 

 

 

 

 

 

 

Thread jamming.

 

Thread take-upspring tension and

Adjust the tension and height of the

P.5

 

 

 

height are incorrect.

thread take-upspring.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Incorrect needle and rotary hook

Adjust the needle bar lift amount.

P.100

 

 

 

timing.

 

 

 

 

 

 

 

 

 

Shuttle race thread guide is not

Adjust the position of the shuttle

 

 

 

 

separating the threads. (except

P.102

 

 

 

KE-484C)

race thread guide.

 

 

 

 

 

 

 

 

 

 

 

 

Poor seam finish on

Shuttle race thread guide is

Adjust the position of the shuttle

P.102

reverse

side

of

separating the threads insufficiently.

race thread guide.

 

 

material.

 

 

(except KE-484C)

 

 

 

 

 

 

 

 

 

Upper thread is not properly tight.

Adjust the upper thread tension.

P.5

 

 

 

 

 

 

 

 

 

 

 

 

 

Uneven needle thread.

Adjust the sub-tension.

 

Instruction

 

 

 

 

manual

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Needle thread is too long.

Adjust

the

thread

take-up

lever

P.114

 

 

 

stroke.

 

 

 

 

P.115

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Needle is striking the button (438)

Refer to “6. CHECKING THE SEWING

Instruction

 

 

 

PATTERN” in the Instruction Manual.

manual

 

 

 

 

 

 

 

 

 

Incorrect

thread

Upper thread tension is too weak.

Adjust the upper thread tension.

P.5

tightness.

 

 

 

 

 

 

 

 

 

 

 

 

Lower thread tension is too weak.

Adjust the lower thread tension.

P.5

 

 

 

 

 

 

 

 

 

Thread take-upspring tension and

Adjust the tension and height of the

P.5

 

 

 

height are incorrect.

thread take-upspring.

 

 

 

 

 

 

 

 

 

 

 

 

Machine

does

not

 

Check if the head position switch

Instruction

operate when power

 

cord is disconnected.

 

 

manual

is turned on and foot

 

 

 

 

 

 

 

 

Adjust the position of the switching

 

switch is depressed.

Head position switch does not work.

P.130

plate.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace the head position switch if

 

 

 

 

 

it is broken.

 

 

 

 

 

 

 

 

Inner clamping device

 

Adjust the work clamp pressure so

 

does not operate.

 

Work clamp pressure is too strong.

that the inner clamping device

P.132

(434, 435, 436)

 

 

operates.

 

 

 

 

135

KE-430B,430C series

 

 

7. OPTIONAL PARTS

 

 

 

 

 

. OPTIONAL PARTS

 

 

 

 

 

 

 

Two-pedalfoot switch

Two-stepfoot switch

 

 

 

 

 

 

0271Q

0272Q

 

 

The presser switch and the start switch have been

This is a pedal-typefoot switch.

 

 

separated, giving the operator more flexibility to select

 

 

 

the best method of working.

 

 

 

* Standard equipment for pneumatic specification

 

 

 

Solenoid thread wiper

Work clamp set QC (KE-430*)

 

 

 

 

 

 

0275Q

0274Q

 

 

This wipes the thread independently of the work

The work clamp can be easily replaced by loosening

 

 

clamp operation.

the bolt and moving work clamp arm levers.

 

 

* Standard equipment for the KE-434*pneumatic

 

 

 

specification

 

 

 

Liquid cooling tank

Three-pedalfoot switch (for pneumatic)

 

 

 

 

 

 

0273Q

3222Q

 

 

This helps to prevent thread breakage caused by

The switch has an independent left work clamp switch

 

 

friction when using synthetic threads.

(left side), right work clamp switch (center) and start

 

 

Fill the tank with silicone oil (100mm2/s).

switch (right side).

 

 

Emergency stop switch

Work clamp plate, OT (KE-435*,436*)

 

 

 

 

 

 

0276Q

3577Q

 

 

If the emergency stop switch has been pressed during

Provide an even clamping pressure. Replacement of

 

 

sewing, the machine can be stop. And, you can move

work clamp blanks and positioning of parts can be

 

 

the feed mechanism back in steps to the desired

carried out easily. In addition, the work clamp is made

 

 

position and then start sewing again.

from plastic so that pattern shape processing is also

 

 

 

easy.

 

KE-430B,430C series

136

7. OPTIONAL PARTS

Thread breakage detector (KE-436*)

2-stepthread tension device(KE-436*)

 

 

 

<Rotary-type>

<Beam-type>

 

 

3578Q

3579Q

The emergency stop is activated to warn the operator

This allows the upper thread tension to be switched

when a thread breakage is detected. Both rotary-type

between two settings at any position desired by using

and beam-typedetectors are available.

the programmer.

Needle cooler (KE-436*)

 

Air wiper (KE436*)

 

 

 

 

3580Q

3581Q

This is a pneumatic type needle cooler which prevents

The thread wiper is driven by a pneumatic cylinder. It

the thread breakage due to heat. It is particularly

can be used when the thread cannot be pulled out

useful when sewing thicker materials and when

from the material when sewing extremely thick

sewing at high speeds.

 

materials.

Programmer (KE-436*)

 

PS-3000Programming software for electronic

 

pattern sewer

 

 

 

 

This is a software program which creates new sewing

 

 

patterns using a personal computer.

 

 

 

3582Q

Sewing date can be created, edited and saved.

137

KE-430B,430C series

8. ELECTRIC MECHANISM

. ELECTRIC MECHANISM

- .Precautions at the time of adjustment

Pay attention to the following when opening the control box for maintenance.

Electric shock

Some large capacitors may have a high voltage remaining in them for up to 5 minutes after the power is turned off. To prevent electric shock, wait at least 5 minutes after the power is turned off before doing the following:

Opening and closing the control box

Replacing fuses

Separating and joining connectors

Measuring resistance

Doing anything with a possibility of touching something inside the control box

Some adjustments require measuring the voltage while the power is turned on with the control box kept open. In such a case, be careful not to touch any place other than that for the measurement. In addition, always keep in mind that a high voltage remains for about 5 minutes after power is turned off.

Injury

While the power is turned on, the cooling fan of the control box operates; be careful not to get caught in it. When separating or rejoining connectors, and measuring something, be careful not to cut your fingers on metal parts such as heat sinks and covers.

- .Components inside the control box and the operation panel

The following are brief explanations of components inside the control box. See control circuit block diagram at the end of this manual for the details of the connections.

Main circuit board

The main circuit board is fixed to the rear panel of the control box. This PCB serves to control machine operation.

Power supply circuit board

The power supply circuit board is fixed at the bottom of the control box. Four fuses are mounted on this PCB.

DC fan motor

The DC fan motor serves as a fan to cool the inside of the control box. Clean the inlet filter monthly.

Conversion transformer (depending on power supply voltage specification)

The conversion transformer controls the power supply voltage to provide 220V.

Control box

Conversion transformer

DC fan motor

Air inlet

Power supply circuit board

Main circuit board

3583Q

KE-430B,430C series

138

8. ELECTRIC MECHANISM

Panel PCB

The panel PCB is fixed to the front panel of the operation panel. This PCB controls indications of the machine status and the input operation.

Operation panel

Panel PCB

Panel PCB

[KE-436B,436C]

3584Q

3585Q

- .Fuse explanation

When replacing a fuse, follow the instructions indicated in “ 8-14.Troubleshooting flowchart”. If a component on a PCB is damaged, a fuse may blow again immediately even when it has been replaced.

When replacing a fuse, be sure to use the specified ones listed below.

No.

Part name

Part code

When a fuse has blown

 

 

 

The feed mechanism and work clamp do not

1

G fuse (5AFB)

S08030-000

operate.

(quick melting type, 5A-250V)

Error E-A0is displayed. ([E.A1]KE-436B,

 

 

 

 

 

436C)

 

G fuse (7AFB)

 

The machine motor does not turn.

2

S48580-000

Error E-20is displayed. ([E.20]KE-436B,

(quick melting type, 7A-250V)

 

 

436C)

 

 

 

3

Fuse 6A

153242-000

The power indicator is not illuminated, and

(glass tube fuse, 6A-250V)

nothing operates.

 

 

4

Fuse 6A

153242-000

The power indicator is not illuminated, and

(glass tube fuse, 6A-250V)

nothing operates.

 

 

Fuse

No.1

Fuse

No.3 Fuse

No.2

Fuse

No.4

Main circuit board mounting side

Front panel

3586Q

3587Q

139

KE-430B,430C series

8. ELECTRIC MECHANISM

- .Connectors

Most of the machine trouble is due to connector problems including improper connection or sufficient contact. Therefore, be sure to check if each connector is correctly inserted and that there is no contact failure between pins and wires before starting troubleshooting procedures.

- - .Connector positions

Outside of the control box

For foot switch

3588Q

Main circuit board

3589Q

KE-430B,430C series

140

8. ELECTRIC MECHANISM

Power supply circuit board

3590Q

Panel PCB (KE-430*,431*, 432*, 433B, 434*, 435*, 484C,BE-438*)

3591Q

Panel PCB (KE-436B,436C)

Panel P-ROM

(PL)

3592Q

141

KE-430B,430C series

8. ELECTRIC MECHANISM

Outside of the panel (KE-436B,436C)

Programmer cord

3593Q

Programmer and programmer circuit board (KE-436B,436C)

LCD inverter

Operation panel

LCD

Programmer PROM (PG)

Programmer PCB

LCD contrast VR

3594Q

KE-430B,430C series

142

8. ELECTRIC MECHANISM

- - .Contact failure

The connectors functions are divided into five categories. Some connectors may belong to more than one group. Be sure to investigate another category if a problem is not found in one category.

For the details of connections, refer to the control circuit block diagram at the end of this manual.

1. Feed mechanism

Problem

Connector No. and position

 

 

• The feed mechanism operates but the home position is not

3654Q

 

detected correctly.

 

• Error E-A0is displayed. ([E.A1]KE-436B,436C)

 

• The work clamp does not operate.

 

• Error E-61is displayed. (solenoid specification only)

 

 

* Not used with pneumatic specifications.

• Forward feed does not operate correctly.

 

• Error E-A0is displayed. ([E.A1]KE-436B,436C)

 

 

3655Q

• Sideways feed does not operate correctly.

 

• Error E-A0is displayed. ([E.A1]KE-436B,436C)

 

 

3656Q

 

 

2. Work clamp lifter and thread trimmer mechanisms

 

Problem

Connector No. and position

 

 

• The work clamp does not operate.

 

• The machine does not operate.

 

 

3657Q

 

 

• The work clamp does not operate.

3658Q

 

• Error E-61is displayed. (solenoid specification only)

 

• Thread trimming is not performed.

 

 

* Not used with pneumatic specifications.

• Thread take-uplever does not operate.

 

 

3659Q

 

 

143

KE-430B,430C series

 

 

8. ELECTRIC MECHANISM

 

 

 

 

3. Sewing operation

 

 

Problem

Connector No. and position

 

 

 

 

• The power indicator is not illuminated, and nothing operates.

 

 

• Machine operation is unstable.

 

 

 

3660Q

 

 

 

 

• The power indicator is not illuminated, and nothing operates.

 

 

• Machine operation is unstable.

 

 

• The feed mechanism does not operate.

 

 

• The work clamp lifter mechanism does not operate.

 

 

• Error E-61is displayed.

 

 

• Error E-A0is displayed. ([E.A1]KE-436B,436C)

 

 

 

3661Q

 

 

 

 

• The machine motor does not run.

 

 

• Motor operation is unstable.

 

 

• Needle up stop position is not correct.

 

 

• Error E-20is displayed. ([E.20]KE-436B,436C)

 

 

• Error E-50is displayed. ([E.22]KE-436B,436C)

 

 

 

3662Q

 

 

 

 

• The machine motor does not run.

 

 

• Motor operation is unstable.

 

 

• Needle up stop position is not correct.

 

 

• Error E-20is displayed. ([E.20]KE-436B,436C)

 

 

• Error E-50is displayed. ([E.22]KE-436B,436C)

 

 

 

3663Q

 

• The machine motor does not run.

 

 

• Motor operation is unstable.

 

 

• Needle up stop position is not correct.

 

 

• Error E-20is displayed. ([E.20]KE-436B,436C)

 

 

• Error E-50is displayed. ([E.22]KE-436B,436C)

 

 

 

3664Q

 

 

 

 

• The machine motor does not run.

 

 

• Motor operation is unstable.

 

 

• Needle up stop position is not correct.

 

 

• Error E-20is displayed. ([E.20]KE-436B,436C)

 

 

• Error E-50is displayed. ([E.22]KE-436B,436C)

 

 

 

3665Q

 

 

 

KE-430B,430C series

144

8. ELECTRIC MECHANISM

4. Programmer operation (KE-436B,436C)

Problem

Connector No. and position

 

 

• The programmer does not operate.

 

• No switches on operation panel operate.

 

 

3666Q

 

 

• Keys on the programmer respond, but nothing appears on the

 

display. (P1-LCD)

 

• Display of the programmer is not lit (Inverter for P3-LCD)

 

 

3667Q

 

 

5. Others

 

Problem

Connector No. and position

 

 

• The DC fan motor does not run.

 

• Error E-70is displayed. ([E.c1]KE-436B,436C)

 

 

3668Q

 

 

• Error E-F1is displayed. ([E.F1]KE-436B,436C)

 

 

3669Q

 

 

• The machine does not operate.

 

• Error E-17is displayed. ([E.16]KE-436B,436C)

 

 

3670Q

 

 

<KE-430*,431*, 432*, 433B, 434*, 435*, 484C,BE-438*>

 

• Indication is strange.

 

• Any switch does not have any effect.

 

• The power indicator is not illuminated.

 

 

3671Q

 

 

145

KE-430B,430C series

 

 

8. ELECTRIC MECHANISM

 

 

 

 

 

 

 

Problem

Connector No. and position

 

 

 

 

<KE-436B,436C>

 

 

• Indication is strange.

 

 

• Any switch does not have any effect.

 

 

• The power indicator is not illuminated.

 

 

• Error E.E1, E.E2 or E.E3 is displayed.

 

 

 

3672Q

 

 

 

 

<KE-434*pneumatic specification,KE-435*,436*, 484C>

 

 

• The work clamp does not operate.

 

 

• The stepping foot does not operate.

 

 

 

3673Q

 

 

 

KE-430B,430C series

146

8. ELECTRIC MECHANISM

- .Explanation of the DIP switches

- - .Operation panel DIP switches(KE-430*,431*, 432*, 433B, 434*, 435*, 484C,BE-438*)

Note:

Always turn off the power before setting the DIP switches.

 

 

All DIP switches are set to OFF at the

3615Q

 

time of shipment.

 

 

 

 

 

 

 

DIP switch A

 

 

 

 

 

 

Switch

Motion when set to ON

 

 

 

 

DIPA-1

Presser does not automatically lift after sewing is

See “8-8.Setting the work

completed.

 

 

 

 

clamp mode”

DIPA-2

Pedal mode is switched.

 

 

 

 

 

 

 

DIPA-3

User program mode is available.

 

 

 

 

 

 

DIPA-4

-

 

 

 

 

DIPA-5

The work clamp does not rise automatically when a split is found.

 

Displays the enlargement/reduction ratio in millimeter units instead of as a

 

DIPA-6

percentage. (After changing this setting, be sure to carry out the auto-clear

 

operation by referring to page 164.)

 

 

DIPA-7

Enlargement of pattern size is not available.

 

 

 

 

 

 

DIPA-8

Program number is fixed.

 

 

 

 

 

 

147

KE-430B,430C series

8. ELECTRIC MECHANISM

- - .Operation panel DIP switches(KE-436B,436C)

Note:

Always turn off the power before setting the DIP switches.

1086Q

 

 

All DIP switches are set to OFF at the time of

 

 

shipment.

 

 

 

 

 

DIP switch A

 

 

 

 

 

 

 

Switch

 

Motion when set to ON

 

 

 

DIPA-1

Work clamp does not automatically lift after

See “8-8.Setting the work

sewing is completed.

 

 

 

 

clamp mode”

DIPA-2

Pedal mode is switched.

 

 

 

 

 

 

 

DIPA-3

-

 

 

 

 

 

 

DIPA-4

-

 

 

 

After sewing is completed, work clamp does not automatically rise. (only in split

DIPA-5

mode)

 

 

 

 

 

DIPA-6

Clamping force output is produced. (Inner clamping device available as an option)

 

 

 

 

DIPA-7

-

 

 

 

 

DIPA-8

Thread breakage detector device is activated (available as an option).

 

 

 

 

DIP switch B

Switch

DIPB-1

DIPB-2

DIPB-3

DIPB-4

DIPB-5

DIPB-6

DIPB-7

DIPB-8

Motion when set to ON

Single split mode activated

-

Thread is not trimmed after an emergency stop.

Needle cooler output is produced. (Needle cooler available as an option)

When a rotating-typethread breakage detector device is used, detection precision is increased from 8 to 14.

When a fiber-typethread breakage detector device is used, detection precision is increased from 5 to 10.

Fiber-typethread breakage detector device is ON, and DIP switchA-8is ON (available as an option).

-

-

KE-430B,430C series

148

8. ELECTRIC MECHANISM

- - .DIP switches inside the control box

DANGER

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the face plate of the control box. Touching areas where high voltages are present can result in severe injury.

All DIP switches are set to OFF at the time of shipment.

Note:

When opening the cover, hold it securely

so that it does not fall down.

3616Q

Switch

DIP-1

DIP-2

DIP-3

DIP-4

DIP-5

DIP-6

DIP-7

DIP-8

*Note:

Motion when set to ON

First two stitches are sewn at a low speed of 260 rpm. Last two stitches are sewn at a low speed of 260 rpm.

-

Last two stitches are sewn at a low speed of 700 rpm. First two stitches are sewn at a low speed of 400 rpm.

Low speed sewing is not performed at the start of sewing.

The motor operates in reverse when the upper shaft stops, to return the needle bar to close to its highest position. *NOTE

Maximum area for the sewing data is increased.

<KE-436B,436C>

During an emergency stop, the thread is trimmed and the needle bar stops in the raised position.

When the motor operates in reverse to raise the needle, the thread take-upwill stop at a position which is lower than its normal stopping position. As a result, the threadtake-upwill rise slightly at the sewing start, and this may result in the thread pulling out under certain conditions.

149

KE-430B,430C series

8. ELECTRIC MECHANISM

- .Explanation of the memory switches

(KE-430*,431*, 432*, 433B, 434*, 435*, 484C,BE-438*)

Special function settings can be carried out using the operation panel.

Note:

After changing the memory switch settings, press the power switch to turn the power off and then back on again.

The memory switches “00 - 2F” are set to OFF at the time of shipment.

3617Q

1.Turn on the power switch.

2.While pressing the TEST switch (1), press the BOBBIN. WIND switch (2).

*“00 - -”will appear in the display window (3).

3.Press the DISPLAY SET switches (4) to set the two digits at the left of the display window (3) to the corresponding number (00 to 4F) of the function shown in the table below that you would like to select.

4.For Nos. 00 to 2F, the two spaces at the right in the display window will change from “--”to “ON” when the BOBBIN. WIND switch (2) is pressed. When it is pressed again, the two spaces will change from “ON” back to“--”.

For Nos. 30 to 4F, the two spaces at the right in the display window will increase and decrease respectively when user program switches P2 and P4 (5) are pressed.

*If you press the RESET switch (6) at this time, memory switches will be returned to their initial settings (factory default settings).

5.Press the TEST switch (1). The display will return to normal.

KE-430B,430C series

150

8. ELECTRIC MECHANISM

<Memory switches 00 - 0F>

Switch

Motion when set to ON

Initial value

Solenoid

Pneumatic

 

 

memo-00

At the end of sewing, the feed plate will be returned to the sewing start point via

--

--

mechanical home position.

 

 

 

 

Work clamp (button clamp) will move to the sewing start point, and then will be

 

 

memo-01

lifted.

*1

ON

(For models with solenoid specifications other than the KE-434*,the work

 

 

 

 

clamp rises at the final stitch to enable quick taking out of the workpieces.)

 

 

 

Feed will move automatically to the next starting point at the same time as a

 

 

memo-02

user program is switched.

--

--

 

(Normally it moves to the starting point after sewing starts.)

 

 

memo-03

When sewing using programs, the programs which have been set will be sewn

--

--

in numerical order. (Cycle sewing mode is set.)

 

 

 

 

The sewing speed will be fixed at the minimum speed for the maximum pitch of

 

 

memo-04

the sewing data. (Set this to ON if you are concerned that variations in pitch

--

--

 

may cause changes in the sewing speed.)

 

 

memo-05

Increases the presser solenoid lifting force

*2

--

(Set to ON when using the optional spring for extra-heavymaterial)

 

 

 

memo-06

Enlargement and reduction ratio settings for X and Y become the same.

--

--

memo-07

The inner clamping device can be used with pneumatic specifications.

--

*3

memo-08

Test feeding is carried out stitch by stitch when the foot switch is depressed.

*4

--

 

 

 

 

 

The sewing start point becomes the reference point for enlargements and

 

 

memo-09

reductions. (The reference point for enlargements and reductions is normally

--

--

 

the center of the sewing frame.)

 

 

memo-0A

Work clamp does not close. (KE-432*)

--

--

memo-0b

Work clamp closes when the machine starts. (KE-432*)

--

--

 

Needle stops in up position during emergency stop.

 

 

memo-0c

(EMERGENCY STOP switch is available as an option except for KE-434*,435*,

--

--

 

484C)

 

 

 

The bar tacking stitches (with a pitch of less than 1 mm) are also enlarged and

 

 

memo-0d

reduced. (Normally stitches with a pitch of less than 1 mm are not enlarged or

--

--

 

reduced.)

 

 

memo-0E

Test feeding will be performed at the same speed as that for actual sewing.

--

--

(This is used for checking feeding operation.)

 

 

 

memo-0F

After sewing is finished, the work clamp automatically opens and closes once

--

--

(practice operation).

 

 

 

*1 ON for KE-434B,434C, and“--”at other times

 

 

*2 ON for solenoid/heavy material specifications of KE-434B,434C, and“--”at other times

 

 

*3 ON when the inner clamping device is being used, and “--”at other times

 

 

*4 ON for BE-438B,438C, and“--”at other times

 

 

<Memory switches 10 - 1F>

Switch

 

Motion when set to ON

Initial value

 

Solenoid

Pneumatic

 

 

 

memo-10

The optional emergency stop switch can be used. (KE-430*,431*, 432*, 433B,

--

--

BE-438*)

 

 

 

 

 

 

On when a two-stagetensioner is used. (Special order device that outputs from

 

 

memo-11

option output No. 1)

 

--

--

(Normally the tension opens when output is OFF, and the tension closes when

 

 

 

 

option output No. 1 is ON)

 

 

memo-12

Pneumatic wiper can be used. (Special order device except for KE-484Cthat

--

*5

outputs from option output No. 2)

 

 

 

 

The inner clamping device moves forward at the 1/4-waymark and returns at

 

 

memo-13

the 3/4-waymark for the pattern being sewn.

--

--

(The device does not

retract at this time, regardless of the setting for

 

 

 

 

memo-15.)

 

 

 

memo-14

Solenoid wiper can be used (available as an option except for KE-434*

--

ON

pneumatic specification and KE-435*).

 

 

 

*5 ON for KE-484C,and“--”at other times

 

 

 

151

KE-430B,430C series

8. ELECTRIC MECHANISM

Switch

Motion when set to ON

Initial value

Solenoid

Pneumatic

 

 

 

When using the inner clamping device, shunting to prevent interference

 

 

memo-15

between the inner clamping device and the needle is not carried out after the

--

--

 

sewing end.

 

 

memo-16

Needle cooler can be used (available by special order).

--

--

memo-17

Thread take-updevice is not operated at the sewing end.

--

--

memo-18

Thread take-updevice operates one stitch before the sewing end.

--

--

 

 

 

 

memo-19

For solenoid specifications, presser position errors are not detected.

--

--

memo-1A

Needle up stop position errors are not detected.

--

--

 

Work clamp can be moved up and down before the home position is detected.

 

 

memo-1b

(Normally the work clamp cannot be moved up and down until after the home

--

--

 

position has been detected.)

 

 

memo-1c

-

--

--

 

 

 

 

memo-1d

For pneumatic specifications, the air pressure detection switch is enabled.

--

--

(The air pressure sensor is a special-orderoption.)

 

 

 

 

Errors can be reset using the EMERGENCY STOP switch.

 

 

memo-1E

(EMERGENCY STOP switch is available as an option except for KE-434*,

--

--

 

435*, 484C.)

 

 

 

Thread is not trimmed when an emergency stop occurs during sewing.

 

 

memo-1F

(EMERGENCY STOP switch is available as an option except for KE-434*,

--

--

 

435*, 484C.)

 

 

<Memory switches 20 - 2F>

Switch

Motion when set to ON

 

Initial value

 

Solenoid

Pneumatic

 

 

 

memo-20

-

 

--

--

memo-21

Rotating-typethread breakage detector operates. (Device is available

by

--

--

special order.)

 

 

 

 

 

 

When thread breakage detection is operating, sensitivity is decreased at the

 

 

memo-22

sewing start. (Sensitivity during sewing is three stitches.)

 

--

--

 

[Rotating-type]8 14 stitches,[Fiber-type]5 10 stitches

 

 

 

memo-23

When DIP switch A-8is simultaneously ON, setting values changed using the

--

--

operation panel are ignored.

 

 

 

 

 

memo-24

-

 

--

--

memo-25

-

 

--

--

memo-26

Enables the fiber-typethread breakage detector (whenmemo-21is ON)

 

--

--

 

 

 

 

memo-27

Test operation of pneumatic-typethread trimmer, tension release and thread

--

--

take-up.(KE-484C)

 

 

 

 

 

memo-28

Stores the amount of parallel movement in memory.

 

--

--

(Use the memory all clear operation to clear the setting.)

 

 

 

 

 

memo-29

Pneumatic thread wiper sensor is enabled (when memo-12=ON

and

--

--

memo-14=ON)(sensor is optional).(KE-484C)

 

 

 

 

 

memo-2A

Special emergency stop release method is used (error code E-11is cleared by

--

--

pressing reset switch once and home position is cleared). (KE-484C)

 

 

 

 

 

memo-2b

 

 

 

 

-

-

 

--

--

memo-2E

 

 

 

 

memo-2F

Pneumatic thread wiper and work clamp operate together. (KE-484C)

 

--

--

KE-430B,430C series

152

8. ELECTRIC MECHANISM

<Memory switches 30 - 4F>

30 to 4F are set by entering two-digitvalues.

These values are incremented using the P2 switch, and decremented using the P4 switch.

Switch

 

 

Possible

 

Units

 

Initial

 

 

Explanation

 

setting range

 

value

 

 

 

 

 

 

 

 

 

 

 

 

0 - 30

 

 

 

 

<KE-430*,431*, 432*, 433B,BE-438*>

memo-30

 

 

 

mm

 

***

Limits the maximum area in the horizontal direction (X).

 

 

 

 

 

 

 

 

0 - 99

 

 

<KE-434*,435*, 484C>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Limits the maximum area in the horizontal direction (X).

 

 

 

 

 

 

 

 

 

 

 

 

0 - 30

 

 

 

 

<KE-430*,431*, 432*, 433B,BE-438*>

memo-31

 

 

 

mm

 

***

Limits the maximum area in the vertical direction (Y).

 

 

 

 

 

 

 

 

0 - 60

 

 

<KE-434*,435*, 484C>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Limits the maximum area in the vertical direction (Y).

 

 

 

 

 

 

 

 

 

 

 

 

12 - 27

 

 

 

27

<KE-430*,431*, 432*>

 

 

 

 

 

 

Changes the maximum sewing speed.

 

 

 

 

 

 

 

 

 

memo-32

 

 

12 - 25

 

100rpm

 

25

<KE-433B,434*, 435*,BE-438*>

 

 

 

 

Changes the maximum sewing speed.

 

 

 

 

 

 

 

 

 

 

 

 

12 - 22

 

 

 

22

<KE-484C>

 

 

 

 

 

 

 

Changes the maximum sewing speed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<KE-430*,431*, 432*, 433B, 434*, 435*, 484C>

 

 

 

1 - 10

 

 

 

5

Changes the feed timing

memo-33

 

 

 

 

 

7.5

 

 

1 (Fast) 5 (Standard) 10 (Slow)

 

 

 

 

 

 

 

<BE-438*>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 - 15

 

 

 

10

Changes the feed timing

 

 

 

 

 

 

 

 

 

1 (Fast) 10 (Standard) 15 (Slow)

 

 

 

 

 

 

 

 

 

<KE-430*,431*, 432*, 433B, 434*, 435*, 484C>

 

 

 

 

 

 

 

 

0

The (setting value + 1) number of stitches are sewn at

 

 

 

 

 

 

 

 

the speed set by memo-35at the sewing start. (No

 

 

 

 

 

 

 

 

 

memo-34

 

 

0 - 5

 

 

Stitch

 

 

low-speedsewing if set to 0.)

 

 

 

 

 

 

<BE-438*>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

The (setting value + 1) number of stitches are sewn at

 

 

 

 

 

 

 

 

the speed set by memo-35at the sewing start. (No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

low-speedsewing if set to 0.)

memo-35

 

 

3 - 9

 

 

100rpm

 

4

Changes the

sewing start speed for the number of

 

 

 

 

 

stitches specified by memo-34.

 

 

 

 

 

 

 

 

 

memo-36

 

 

-

 

 

-

 

-

 

 

-

 

 

 

 

 

 

 

 

 

Changes the feed timing one stitch before the sewing

memo-37

 

 

1 - 20

 

7.5

 

10

end.

 

 

 

 

 

 

 

 

 

 

1 (Fast) 10 (Standard) 20 (Slow)

memo-38

 

 

1 - 20

 

7.5

 

10

Changes the feed timing two stitches before the sewing

 

 

 

 

end.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<KE-430*,431*, 432*, 433B, 434*, 435*, 484C>

 

 

 

 

 

 

 

 

10

Changes the feed timing for the third stitch at the

memo-39

 

 

1 - 20

 

7.5

 

 

sewing start.

1 (Fast) 10 (Standard) 20 (Slow)

 

 

 

 

 

<BE-438*>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Changes the feed timing for the third stitch at the

 

 

 

 

 

 

 

 

 

sewing start.

1 (Fast) 10 (Standard) 20 (Slow)

*** Default values for each model setting

 

 

 

 

 

 

 

 

 

 

 

 

Model

 

 

 

 

Default value for memo-30

 

Default value for memo-31

 

 

 

 

 

 

 

 

 

26

KE-430*

 

 

 

 

 

30

 

 

KE-431*

 

 

 

 

 

30

 

 

10

KE-432*

 

 

 

 

 

12

 

 

3

KE-433B

 

 

 

 

 

30

 

 

30

KE-434*,435*,

 

 

 

 

99

 

 

60

 

(If the value is set to 99, the maximum

 

484C

 

 

 

 

 

 

 

 

length allowed will be 100 mm)

 

 

 

 

 

 

 

 

 

7 (Limited to 6.4 mm)

BE-438*

 

 

 

7 (Limited to 6.4 mm)

 

153

KE-430B,430C series

 

 

 

 

 

8. ELECTRIC MECHANISM

 

 

 

 

 

 

 

 

 

 

 

 

 

Switch

Possible

Units

Initial

Explanation

 

setting range

value

 

 

 

 

 

 

 

 

10

<KE-430*,431*, 432*, 433B, 434*, 435*, 484C>

 

 

 

 

Changes the feed timing for the second stitch at the

 

memo-3A

1 - 20

7.5

 

sewing start.

 

 

<BE-438*>

 

 

 

 

 

 

 

 

 

1

Changes the feed timing for the second stitch at the

 

 

 

 

 

sewing start.

 

 

 

 

10

<KE-430*,431*, 432*, 433B, 434*, 435*, 484C>

 

 

 

 

Changes the feed timing for the first stitch at the sewing

 

memo-3b

1 - 20

7.5

 

start.

 

1

<BE-438*>

 

 

 

 

 

 

 

 

Changes the feed timing for the first stitch at the sewing

 

 

 

 

 

start.

 

 

 

 

 

Sets the number of stitches for which the feed timing

 

memo-3c

0 - 99

Stitch

0

(memo-33setting) is enabled.

 

0: Enabled for all stitches

 

 

 

 

 

1 - 99: Enabled for the specified number of stitches from

 

 

 

 

 

the sewing start

 

memo-3d

-

-

-

-

 

 

 

 

 

 

 

memo-3E

-

-

-

-

 

memo-3F

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

<KE-434*,435*, 484C>

 

memo-40

1 - 5

-

4

Changes the test feeding speed (with no material).

 

 

 

 

 

1 (Fast) 5 (Slow)

 

 

 

 

 

<KE-435*>

 

memo-41

1 - 99

x10ms

10

Changes the standby time after the stepping foot is

 

 

 

 

 

raised.

 

 

 

 

 

<Solenoid specifications>

 

 

 

 

 

The work clamp operating mode can be changed.

 

 

0 - 10

-

0

(When set to “0”, the mode is selected according to the

 

 

settings for DIP switches A-1andA-2.)

 

memo-42

 

 

 

 

 

 

 

Refer to “8-8.Setting the work clamp mode” for details

 

 

 

 

 

of the available modes.

 

 

0 - 13

-

0

<Pneumatic specifications>

 

 

5

<Inner clamping device specifications>

 

 

 

 

 

 

 

 

 

<KE-434*,435*, 484C>

 

memo-43

1 - 3

-

3

Changes the allowable speed/sewing pitch.

 

 

 

 

 

1 (Fast) 3 (Standard)

 

 

 

 

 

<KE-434*,435*, 484C>

 

 

 

 

0

Changes the path taken when moving from the machine

 

memo-44

0 - 3

-

home position to the start position.

 

 

0: Across inside of work clamp, 1: Top-left,2:

 

 

 

 

 

Bottom-left,3:Bottom-right

 

 

 

 

1

<Inner clamping device specifications>

 

 

 

 

1: Top-left,2:Bottom-left,3:Bottom-right

 

 

 

 

 

 

memo-45

-

-

-

-

 

-

 

memo-4c

 

 

 

 

 

memo-4d

0 - 10

x100ms

0

<KE-484C>

 

Changes the work clamp lift timing after sewing is

 

 

 

 

 

finished.

 

 

 

 

 

<KE-484C>

 

memo-4E

2 - 9

7.5

5

Tension release ON timing after thread trimming.

 

 

 

 

 

2 (Fast) ← 5 (Standard) →9 (Slow)

 

memo-4F

14 - 19

 

14

<KE-484C>

 

7.5

Thread trimming timing

 

 

 

 

 

14 (Standard) ↔ 19 (Slow)

KE-430B,430C series

154

8. ELECTRIC MECHANISM

- .Explanation of the memory switches(KE-436B,436C)

Special function settings can be carried out using the operation panel.

Note:

After changing the memory switch settings, press the power switch to turn the power off and then back on again.

3618Q

1.Turn on the power switch.

2.While pressing the TEST switch (1), press the STEP BACK switch (2) to switch to setting mode.

3.Press the program select switch (4) so that the number displayed on the display screen (3) matches the switch number (00 - 3F) for the function that you would like to select from the table.

4.For Nos. 00 to 2F, the display screen (5) will change from “OFF” to “ON” when the STEP BACK switch (2) is pressed. When it is pressed again, the display screen will change from “ON” back to “OFF”.

For Nos. 30 to 3F, the number appearing in the display screen (5) can be changed by turning the dial (6) while pressing the STEP BACK switch (2).

If the B.T. CHANGE switch (7) is pressed at this time, all memory switch settings will be changed to OFF.

5.Press the TEST switch (1). The display will return to normal.

Note:

The following steps set the memory switch settings separately for each program number.

6.Once the program data has been read from the floppy disk, change to memory switch setting mode and then press the B.T. SET switch (8). The buzzer will sound twice, and the current memory switch settings will be written to the floppy disk.

155

KE-430B,430C series

 

 

8. ELECTRIC MECHANISM

 

 

 

 

 

 

Memory switches (00–0F)

 

 

 

 

 

 

 

 

Switch No.

Motion when set to ON

 

Initial value

 

 

 

 

 

memo-00

When moving to the home position, the feed plate moves in the order r and the start

 

 

position moves in the order r . (*1)

 

 

 

(The feed plate does not move via the position that has been set by memo-3C.)

 

 

 

memo-01

When moving to the home position, the feed plate moves in the order r and the start

 

 

position moves in the order r. (*1)

 

 

 

(The feed plate does not move via the position that has been set by memo-3C.)

 

 

 

memo-02

 

 

 

 

 

 

 

 

 

memo-03

 

 

 

 

memo-04

Needle stops in up position during emergency stop. (Needle normally stops in

down

 

 

position.)

 

 

 

 

 

 

memo-05

When sewing is finished, the feed plate moves via the machine home position to the start

 

 

position.

 

 

 

 

 

 

memo-06

After the final stitch, the work clamp rises and then the feed plate returns to the

start

 

 

position.

 

 

 

 

 

 

memo-07

Intermittent work clamp is not used (does not rise).

 

 

 

 

 

 

 

memo-08

When using an inner clamping device, the inner clamping device moves forward at the

 

 

1/4-waymark and returns at the3/4-waymark for the pattern being sewn. (Inner clamping

 

 

device is available as an option.)

 

 

 

memo-09

Changes the wiper to air drive. (Air wiper is available as an option.)

 

 

 

 

 

 

 

 

memo-0A

Jog feeding becomes faster during programming.

 

 

 

memo-0b

ON when a two-stagetensioner is used (available as an option).

 

 

 

memo-0c

 

 

 

 

 

 

 

 

 

memo-0d

Clearing the emergency stop switch action is carried out using the STEP BACK switch.

 

ON

 

Note: The factory default setting is ON, and it changes to ON when all memory settings are

 

 

cleared.

 

 

 

memo-0E

Test feeding is carried out at the same speed as normal sewing. (For checking

feed

 

 

operation)

 

 

 

 

 

 

memo-0F

After sewing is finished, the work clamp automatically opens and closes once. (practice

 

 

operation)

 

 

 

If memo-0Eis ON, the work clamp opens and closes twice.

 

 

*1: The direction is rotation with reference to the x axis, and the r direction is rotation with reference to the y axis.

Memory switches (10–1F)

Switch No.

Motion when set to ON

Initial value

 

 

 

memo-10

 

 

memo-11

Bobbin thread counter and production counter are adjusted when thread is trimmed.

 

memo-12

 

 

 

 

 

memo-13

 

 

memo-14

Needle up error detected.

 

memo-15

When using the inner clamping device, shunting to prevent interference between the inner

 

clamping device and the needle is not carried out after the sewing end. (Inner clamping

 

device is available as an option.)

 

memo-16

 

 

 

 

 

memo-17

 

 

 

 

 

memo-18

 

 

 

 

 

memo-19

 

 

 

 

 

memo-1A

 

 

memo-1b

 

 

 

 

 

memo-1c

Bobbin thread counter is decremented at the start of sewing.

 

 

 

 

memo-1d

When using an air pressure drop detection switch. (This detection switch is available by

 

special order.)

 

 

memo-1E

Changes the split number automatically by using an external switch. (Use option connector

 

P3 on the operation panel.)

 

 

memo-1F

Program number is changed automatically by using outside switch. (Use optional

 

connector P3 on the operation panel.)

 

 

KE-430B,430C series

156

8. ELECTRIC MECHANISM

Memory switches (20 - 2F)

Switch No.

Motion when set to ON

Initial value

 

 

 

memo-20

During feed test operation, jump feeding 100 stitches at a time is possible using the STEP

 

BACK switch.

 

 

memo-21

After the home position is detected and the machine moves to the sewing start position, the

 

work clamp rises automatically.

 

 

memo-22

 

 

 

 

 

memo-23

 

 

 

 

 

memo-24

 

 

memo-25

The enlargement and reduction ratio settings at the operation panel are fixed at the values

 

when memo-25was set to ON.

 

 

memo-26

Thread trimming is not carried out.

 

memo-27

The sewing speed setting at the operation panel is fixed at the value when memo-27was

 

set to ON.

 

 

memo-28

Set to ON when using the thread take-updevice.

ON

memo-29

Work clamp lifting and lower thread winding before home position detection are disabled.

 

memo-2A

 

 

 

 

 

memo-2b

 

 

memo-2c

 

 

 

 

 

memo-2d

 

 

 

 

 

memo-2E

 

 

memo-2F

When the input voltage is being checked, the display shows the temperature of the heat

 

sink on the main circuit board instead of the voltage.

 

 

Memory switches (30 - 3F)

Memory switches 30 to 3F are set to numeric values instead of “ON” and “OFF”.

Turn the dial while pressing the STEP BACK switch to change the values.

Switch No.

Possible setting

Units

Initial value

 

Explanation

range

 

 

 

 

 

 

memo-30

1 - 999

10ms

10

Time until feed mechanism starts moving after work clamp

has lifted.

 

 

 

 

memo-31

1 - 5

 

4

Changes the feed speed.

1

(Fast) 5 (Slow)

 

 

 

 

 

 

 

 

Changes the possible sewing speed for a given stitch length.

memo-32

3 - 7

 

3

3

(Fast) 7 (Slow)

3

(2,500/3 mm), 4 (2,300/3 mm), 5 (2,000/3 mm),

 

 

 

 

 

 

 

 

6

(1,800/3 mm), 7 (1,200/3 mm)

 

 

 

 

 

memo-33

1 - 10

7.5

5

Changes the feed timing.

1

(Fast) 5 (Standard) 10 (Slow)

 

 

 

 

memo-34

1 - 5

stitch

1

Number of low-speedstitches sewn at 400 rpm at sewing

start.

 

 

 

 

memo-35

3 - 9

100rpm

4

Changes the sewing start speed for the number of stitches

specified by memo-34.

 

 

 

 

memo-36

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Automatically corrects the gear speed when reading 2DD

 

 

 

 

disks.

 

 

 

 

0: No automatic correction

memo-37

0 - 3

 

0

1: Read as BAS-311Adata

 

 

 

 

2: Read as BAS-326Adata

 

 

 

 

3: Read as BAS-341A,342A data

 

 

 

 

ex. Read BAS-311Adata byKE-436CSetmemo-37=1.

memo-38

 

 

 

 

 

 

 

 

 

 

 

157

KE-430B,430C series

 

 

 

 

 

8. ELECTRIC MECHANISM

 

 

 

 

 

 

 

 

 

 

 

 

 

Switch No.

Possible setting

Units

Initial value

Explanation

 

range

 

 

 

 

 

 

 

 

 

 

Changes the reference point for enlargement and reduction

 

 

 

 

 

using the operation panel.

 

 

 

 

 

0, 1: Center of work clamp,

 

 

 

 

 

2: Upper-leftcorner of work clamp,

 

memo-39

0 - 11

 

0

3: Lower-leftcorner of work clamp,

 

4: Upper-rightcorner of work clamp,

 

 

 

 

 

5: Lower-rightcorner of work clamp, 6: Sewing start point,

 

 

 

 

 

7: Sewing end point, 8: Upper-leftcorner of sewing pattern,

 

 

 

 

 

9: Lower-leftcorner of sewing pattern,

 

 

 

 

 

10: Upper-rightcorner of sewing pattern,

 

 

 

 

 

11: Lower-rightcorner of sewing pattern

 

 

 

 

 

Changes the speed limit for the given sewing pitch when the

 

 

 

 

 

maximum speed remains constant.

 

 

 

 

 

1: Speed limit is increased for the given sewing pitch and the

 

 

 

 

 

sewing speed for that pitch is increased.

 

 

 

 

 

2: Standard

 

memo-3A

1 - 3

 

2

3: Speed limit is decreased for the given sewing pitch and

 

the sewing speed for that pitch is decreased.

 

 

 

 

 

 

 

 

 

 

Note:

 

 

 

 

 

If sewing slippage occurs in places where a large sewing

 

 

 

 

 

pitch is used, reduce the setting to 3.

 

 

 

 

 

Furthermore, sewing slippage may occur in some cases if

 

 

 

 

 

setting 1 is used.

 

 

 

 

 

Changes the work clamp operating mode. (When set to “0”,

 

memo-3b

0 - 13

 

0

the mode is selected according to the settings for DIP

 

switches A-1andA-2.)Refer to“8-8.Setting the work clamp

 

 

 

 

 

 

 

 

 

 

mode” for details on the setting values.

 

 

 

 

 

 

 

 

 

 

 

Changes the path taken when moving from the machine

 

memo-3c

0 - 4

 

0

home position to the start position.

 

0: Across inside of work clamp, 1: Top-left,2:Bottom-left,

 

 

 

 

 

 

 

 

 

 

3: Bottom-right,4:Top-right

 

 

 

 

 

 

 

memo-3d

 

 

 

 

 

 

 

 

 

 

 

memo-3E

 

 

 

 

 

 

 

 

 

 

 

memo-3F

 

 

 

 

 

 

 

 

 

 

KE-430B,430C series

158

8. ELECTRIC MECHANISM

- .Setting the work clamp mode

Through the combination of DIP switches A-1andA-2on the operation panel, presser motions can be set as follows:

[Setting solenoid work clamp mode]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DIPA-1

DIPA-2

Pedal specifications

 

Raising the presser at the sewing end

 

 

-

-

Single pedal

Work

clamp

is raised

automatically.

(factory

default

settings)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

-

Single pedal

Work clamp is raised by pressing the pedal.

 

 

-

ON

Two pedals

Work clamp is raised automatically, then it is lowered by

pressing the pedal.

 

 

 

 

 

 

 

 

 

 

 

 

ON

ON

Two pedals

Work clamp is kept lifted while the work clamp pedal

is

pressed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[Setting pneumatic work clamp mode]

 

 

 

 

 

 

 

memo-42=0(memo-3b=0:KE-436B,436C) <initial value>

 

 

 

 

 

 

 

 

 

 

 

 

 

DIPA-1

DIPA-2

Pedal specifications

 

 

Raising the presser at the sewing end

 

 

-

ON

Single pedal

 

Work clamp is raised automatically.

 

 

 

ON

ON

Single pedal

 

Work clamp is raised by pressing the pedal.

 

 

 

-

-

Two pedals

 

Work

clamp is

raised automatically, then

it is lowered

by

 

pressing the pedal. (factory default settings)

 

 

 

 

 

 

 

 

 

 

ON

-

Two pedals

 

Work

clamp is

kept lifted

while the work

clamp

pedal

is

 

pressed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Special memo-42settings(memo-3b:KE-436B,436C)

memo-42

Pedal

memo-3b

specifications

5

Two pedals

 

 

6

Two pedals

 

 

7

Two pedals

 

 

8

Three pedals

(Option)

 

 

 

9

Two pedals

 

 

10

Two pedals

 

 

11

Three pedals

(Option)

 

 

 

12

Three pedals

(Option)

 

 

 

13

Two pedals

 

 

Raising the presser at the sewing end

Left presser drops when presser pedal is at the 1st step, and right presser drops when presser pedal is at the 2nd step.

Raising is carried out in the reverse order.

*Initial value for inner clamping specifications only

*Setting used when using the light work clamp function (Refer to “1-8-3.Light work clamp”.)

Right presser drops when presser pedal is at the 1st step, and left presser drops when presser pedal is at the 2nd step.

Raising is carried out in the reverse order.

The left/right operating sequence changes alternately for each item sewn when using two-pedaloperation.

Starts with right left.

The left pedal is used to raise and lower the left presser, and the right (center) pedal is used to raise and lower the right presser.

The start (right) pedal is used to start sewing.

Furthermore, when DIP switch A-2is at ON, and if one presser is already lowered, pressing the start pedal causes the other presser to be lowered and then sewing starts.

When the presser pedal is depressed to the 1st step, both left and right pressers are raised simultaneously.

When it is pressed to the 2nd step, sewing starts.

When the start pedal is depressed, both left and right pressers are lowered simultaneously.

When the start pedal is released, sewing starts.

The left pedal raises and lowers the left and right work clamps, and the right pedal (center) detects the home position. The start (right) pedal is used to start sewing. For the stepping foot specifications, both work clamps are lowered when DIP switch A-2is ON, and the stepping foot is also lowered at the same time.

The left pedal raises and lowers the left work clamp, and the right pedal (center) detects the home position. When the start pedal (right side) is depressed for a short time (200 ms), the right work clamp is lowered, and when it is depressed for a longer time the right work clamp is lowered and then sewing starts.

For the stepping foot specifications, the right work clamp is lowered when DIP switch A-2is ON, and the stepping foot is also lowered at the same time.

Two-pedaloperation raises and lowers the left and right work clamps simultaneously, and the stepping foot is lowered at the sewing start.

When memo-42(memo-3b)has been used to make a special setting, DIP switchesA-1andA-2function as follows.

When DIP switch A-1is at ON, the work clamp are not raised automatically at the sewing end.

DIP switch A-2is ignored except whenmemo-42(memo-3b)= 8, 11, 12.

159

KE-430B,430C series

8. ELECTRIC MECHANISM

- - .Light work clamp

For pneumatic specifications, the hose connections can be changed so that the work clamp are made to lower gently when the work clamp pedal is depressed to the 1st step, and firmly when the work clamp pedal is depressed to the 2nd step. This makes it easier to carry out position matching when attaching small articles such as labels.

[Memory switch setting]

Set memo-42(memo-3b:KE-436B,436C) to 5 fortwo-pedalmode so that the work clamps lower in the order of left then right for the standard hose connection. (Refer to“8-6./8-7.Explanation of the memory switches”.)

Hose connections for light work clamp operation by both pressers

Branch

Plug

0344Q

[How to use]

1.Depress the work clamp pedal to the 1st step to lower the work clamps and apply a light pressure. You can then position small articles such as labels at this time.

2.After checking that everything is positioned correctly, depress the work clamp pedal to the 2nd step to firmly clamp the article being sewn.

3.Press the start pedal to start sewing.

Other hose connections and corresponding operations

The hoses can be connected in combinations other than the one shown above so that only one side of the work clamp operates in light work clamp mode.

Branch and plug

 

Cylinder connectors

 

Operation when presser pedal is depressed to the 1st step

connectors

 

 

 

 

 

 

A

 

B

C

 

D

 

 

 

 

 

 

 

 

 

 

 

Branch: 1B, 2A

1B

 

2A

1B

 

2A

Both pressers operate in light work clamp mode

 

 

 

Plug: 1A, 2B

 

 

(example shown above)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Branch: 1B

1B

 

2A

1B

 

1A

Only left presser lowers, and it lowers in light work clamp

Plug: 2B

 

 

mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Branch: 1B

1B

 

1A

1B

 

2A

Only right presser lowers, and it lowers in light work clamp

Plug: 2B

 

 

mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Branch: 2A

1B

 

2A

2B

 

2A

Both pressers lower, but only left presser lowers in light work

Plug: 1A

 

 

clamp mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Branch: 2A

2B

 

2A

1B

 

2A

Both pressers lower, but only right presser lowers in light work

Plug: 1A

 

 

clamp mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KE-430B,430C series

160

8. ELECTRIC MECHANISM

- .Checking the input sensor and DIP switch input

[KE-430*,431*, 432*, 433B, 434*, 435*, 484C,BE-438*]

2581Q

1.When the X-SCALEindicator (1) is illuminated and the RESET switch (3) is pressed while the TEST switch (2) is being pressed, the state of the X home position signal will appear on the display window (4).

When sensor is ON

When sensor is OFF

*For the KE-430*,431*, 432*, 433B andBE-438*,“ON” is displayed when the Y home position sensor is off.

2.Each time the SELECT switch (5) is pressed, a different indicator will illuminate and the operating condition for the corresponding item will appear on the display window (4).

When X-SCALEindicator is illuminated.......... X home position sensor (ON[KE-430*,431*, 432*, 433B and

BE-438*]or OFF[KE-434*,435*, 484C] when home position

detected)

When Y-SCALEindicator is illuminated .......... Y home position sensor (ON[KE-430*,431*, 432*, 433B andBE-438*]or OFF[KE-434*,435*, 484C] when home position

detected)

When SPEED indicator is illuminated............. Synchronizer ( * 1)

When COUNTER indicator is illuminated ....... Presser sensor (ON when presser is lowered)

When PROGRAM NO. indicator is illuminated.....Work clamp closed sensor (ON when work clamp is open [KE-432*only])

*1 The synchronizer display simultaneously displays the needle up signal (3rd digit), the 24-sectionsignal

(2nd digit) and the needle down signal (1st digit).

[ H L L]

“H” when the sensor is on, and “L” when the sensor is off

 

 

 

 

 

Needle down signal

 

 

 

 

 

 

 

 

 

 

24-sectionsignal

 

 

 

 

 

 

 

 

 

 

Needle up signal

 

 

 

 

 

If the DIP switches at the side of the operation panel are changed at this time, the number of the DIP switch which was changed will be displayed in the 4th digit position of the display window (4) for about one second.

Note:

The DIP switch can be changed at this time without turning off the power so that you can check the DIP switch input. However, you should normally always turn off the power when changing DIP switch settings.

3. Press the TEST switch (2) again to return the display to the normal condition.

161

KE-430B,430C series

8. ELECTRIC MECHANISM

[KE-436B,436C]

2729Q

1.When the SPLIT NO. indicator (1) is illuminated and the R/W switch (3) is pressed while the TEST switch

(2)is being pressed, the X-SCALEindicator (4) will illuminate and the state of the X home position signal will appear on the display screen (5).

When sensor is ON

When sensor is OFF

2.Each time the MENU switch (6) is pressed, a different indicator will illuminate and the operating condition for the corresponding item will appear on the display screen (5).

When X-SCALEindicator is illuminated : X home position sensor

When Y-SCALEindicator is illuminated : Y home position sensor

When SPEED indicator is illuminated : Needle up signal (synchronizer)

When B.T. COUNTER indicator is illuminated : 24-sectionsignal (synchronizer)

When SPLIT ON. indicator is illuminated : Needle down signal (synchronizer)

3.If the settings for DIP switch A at the side of the operation panel are changed at this time, the number of the changed switch will appear in the top row of the program number display (7).

4.If the settings for DIP switch B are changed at this time, the number of the changed switch will appear in the bottom row of the program number display (7).

5.Press the TES