JUKI MEB-3810N Series, MEB-3810NJ, MEB-3810NC Instruction Manual

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Page 1

MEB-3810N

INSTRUCTION MANUAL

COVERI

Page 2

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

2. NAME OF EACH COMPONENT

3. INSTALLATION

3-1. Table ............................................................................. 3

(1) Drawing of the stand ....................................................... 3

(2) Drawing of the table(Table-xed type) (3) Drawing of the table (Semi-sunken type)

3-2. Installing the control box ........................................... 6

3-3. Installing and connecting the power switch

3-4. Taking out the sewing machine 3-5. Installing the sewing machine

(1) In the case of the table-xed type machine head......... 9

(2) In the case of the semi-sunken type machine head....11

3-6. Raising and returning the sewing machine ............ 16

3-7. Installing the poly oiler 3-8. Installing the operation panel

3-9. Installing the regulator and the manifold 3-10. Connecting the cords 3-11. Handling the cords

3-12. Installing the foot pedal switch (optional) 3-13. Connecting the air supply

(1) Connecting the regulator and the manifold ................ 25

(2) Connecting the air tubes

3-14. Installing the air hose ............................................. 27

3-15.

Cautions for the compressed air supply (source of supply air) facility

3-16. Installing the thread stand ..................................... 29

3-17. Installing the thread guides

3-18. Installing the eye protection cover and the

nger guard 3-19. Installing the cloth chip bag 3-20. Installing/removing the presser unit

................................................. 3

............................................. 19

............................................. 22

..................................................23

.............................................. 26

................................................. 28

.............................................................31

......................2

.......................... 4

...................... 5

............ 6

................................. 8

................................... 9

.................................. 19

............... 20

............ 24

...................................... 25

................................... 30

..................................32

..................... 33

4. PREPARATION BEFORE OPERATION ......... 34

4-1. Lubrication of the machine and how to lubricate .. 34

(1) Lubricating the arm oil tank ......................................... 34

(2) Lubricating the bed oil tank

(3) Lubricating the looper and spreader components (4) Lubricating the looper bracket oil tank

(5) Lubricating the needle bar and the gear section

4-2. Attaching the needle ................................................. 37

4-3. Threading the machine head

(1) Threading the upper thread (needle thread) ............... 38

(2) Threading the lower thread (looper thread) (3) Threading the machine with gimp

4-4. How to set the cloth on the sewing machine ......... 40

......................................... 34

.... 35

....................... 35

....... 36

................................... 38

................ 39

............................... 40

5. STRUCTURE OF THE OPERATION SWITCH

5-1. Structure of the operation panel .............................41

5-2. Temporary stop switch

5-3. Hand switch

5-4. Foot switch (optional)

..........................................................41

............................................. 43

............................................................... 43

...............................................43

6. HOW TO USE THE OPERATION PANEL ......44

6-1. Basic operation of the sewing machine ................. 44

6-2. Setting the thread tension

6-3. Temporarily stopping the sewing machine

........................................44

............ 45

6-4. Performing re-sewing 6-5. Performing threading 6-6. How to use the counter

6-7. When dropping of the knife is temporarily not

desired

6-8. Changing the operation mode 6-9. Changing procedure of the sewing pattern 6-10. Conrming the pattern shape

.....................................................................48

............................................... 46

...............................................47

............................................ 47

................................. 48

............ 50

................................ 50

7. SETTING PROCEDURE OF THE SEWING DATA

...............................................................51

7-1. Setting the knife No. ................................................. 52

7-2. Setting the cut length

7-3. Setting the cut-before/cut-after knives 7-4. Setting the number of stitches of the parallel

section

7-5. Setting the number of stitches of the eyelet 7-6. Setting the cut space 7-7. Setting the eyelet space 7-8. Knife position compensation 7-9. Number of stitches of sewing end compensation 7-10. Turning angle compensation 7-11. Turning angle compensation at the parallel sec-

tion

7-12. Compensation of eyelet in lateral direction 7-13. Compensation of eyelet in longitudinal direction 7-14. Compensation of eyelet, left in longitudinal

direction

7-15. Compensation of left parallel section of a but-

tonhole

7-16. Compensation of cutting space, left

7-17.

Setting the needle throwing width of the

right bottom of eyelet

7-18.

Setting the needle throwing width of the left

bottom of eyelet

7-19. Setting the needle throwing width ........................58

7-20. Setting the type of bartack 7-21. Setting the length of taper bar 7-22. Setting the number of stitches of taper bar 7-23. Setting the offset of taper bar

7-24. Setting the number of stitches of slant section

of taper bar

7-25. Compensation of the number of stitches of the

right side taper bar

7-26. Setting the straight bar length 7-27. Setting the number of stitches of straight bar

7-28. Setting the overlapping amount of straight bar

7-29. Setting the needle throwing width of straight bar 7-30. Setting the number of stitches of round bar

7-31. Setting the number of overlapping stitches of

round bar 2

7-32. Setting the needle throwing width of the round

bar

7-33. Setting the needle throwing width at the upper

section of eyelet bar

7-34. Setting the reduced sewing speed for straight/

round bar

7-35. Setting the sewing speed 7-36. Setting the reduction speed of eyelet

......................................................................53

............................................................................55

................................................................... 56

.....................................................................57

..............................................................60

..............................................................62

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.................................................................63

............................................... 52

................... 53

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................................................ 54

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. 55

................................. 55

......... 56

..................... 57

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......... 59

................................ 59

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..... 61

... 61

........ 62

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....................................... 63

................... 63

Page 3

7-37. Setting the soft start ............................................... 64

7-38.

Setting the number of stitches at the beginning of sewing of thread tension

7-39.

Setting the number of stitches at the end of sewing of thread tension

.................................................. 64

................................................. 64

8. ADJUSTMENT OF EACH PART ....................65

8-1. Adjusting the pressure of the cloth trimming

knife

.......................................................................... 65

8-2. Adjusting the stitch bite width

8-3. Adjusting the presser 8-4. Adjusting the presser opening amount

8-5. Adjusting the needle thread drawing amount

8-6. Adjusting the thread take-up thread guide

8-7. Adjusting the remaining amount of the gimp.........70

8-8. Adjusting the gimp thread tension 8-9. Needle thread clamp unit (optional) 8-10. Adjusting the brightness of the hand lamp

............................................... 67

.................................66

.................. 68

........ 69

............. 69

.......................... 70

........................ 71

.......... 72

9. HOW TO USE THE VARIOUS FUNCTIONS ..73

9-1.

Operating procedure of thread tension compensa-

tion of each section

9-2. Changing the setting position of cloth ................... 76

9-3. Changing over the mode of the start switch 9-4. Changing over the presser movement 9-5. Changing over the counter (DOWN counting) 9-6. Changing over to the mode of the stop before

cloth cut

9-7. Copying the pattern data 9-8. Deleting the pattern data

...................................................................76

................................................... 73

.......... 76

................... 76

....... 76

..........................................77

.......................................... 78

(6) Standard of replacing time of the gas spring (7) Replacing the gas spring

............................................. 95

............. 94

11. EXCHANGING GAUGE PARTS AND OPTIONAL

11-1. Throat plate ..............................................................96

11-2. Presser set

11-3. Presser holding plate

11-4. Cloth cutting knife 11-5. Hammer 11-6. Others

........................................................... 96

............................................................... 96

..............................................97

...................................................97

.................................................................... 98

.......................................................................98

12. TROUBLES AND CORRECTIVE MEASURES IN SEWING

13. MEMORY SWITCH

13-1. Operating procedure ............................................101

13-2. Memory switch list

........................................ 99

.....................................101

................................................ 102

14. ERROR LIST ............................................... 104

15. STANDARD PATTERN LIST

16. SEWING DATA ENTRY SHEET

......................107

..................108

10. MAINTENANCE ............................................ 79

10-1. Looper thread trimming (overall thread trimmer

type)

..........................................................................79

10-2. Timing between the needle and the looper

10-3. Height of the needle bar

(1) Adjusting the needle bar height ................................... 82

(2) Reference height of the needle bar

10-4. Adjustment to prevent triangular stitch skip-

ping in the case of a narrow needle throwing

width

......................................................................... 83

10-5. Clearance between the needle and the looper

10-6. Adjusting the needle guard

10-7. Clearance between the spreader and looper

and the opening timing of the spreader

10-8. Height of the throat plate

(1) Height of the throat plate .............................................. 87

(2) Adjusting the height of the throat plate

10-9. Position of the presser foot ................................... 88

10-10. Adjusting the knife dropping position 10-11. Installing position of the needle thread trim-

ming knife 10-12. Cleaning 10-13. Draining

10-14. Replacing consuamables

(1) Worn-out of the hammer face ...................................... 91

(2) Replacing the cloth cutting knife and the hammer (3) Replacing the looper thread trimming knife (overall

thread trimmer type) (4) Replacing the needle thread trimming knife (5) Changing the thread trimmer retaining plate (needle

thread trimmer type)

................................................................89

................................................................. 90

.................................................................90

......................................... 82

............................. 82

....................................84

.......................................87

..................................... 91

..................................................... 93

..................................................... 94

.......... 79

..... 84

................ 85

...................... 87

................ 88

.... 92

.............. 94

Page 4

1. SPECIFICATIONS

Specications J type C type

1 Application Jeans Cotton pants, working pants

Operating temperature

3 Operating humidity range 35 % to 85 % (with no condensation)

Number of patterns that

can be stored in memory

5 Input power

7 Thread trimmer type

8 Sewing length 10 to 38 mm 10 to 34 mm 10 to 38 mm 10 to 34 mm

9 Buttonhole length 10 to 38 mm

10 Needle throwing width

Length of buttonhole with

12 Lift of presser foot Standard 13 mm

13 Change of stitch shape Selection by program

14 Buttonhole cutting Cut-before knife + Cut-after knife, without knife

Cloth cutting knife drive

16 Feed method Intermittent feed by stepping motor

17 Needle used DO x 558 Nm90 to 120 (Needle count attached at the time of delivery: Nm110)

18 Safety device Pause switch & automatic stop function at the time of detection of a trouble

19 Lubricating oil JUKI MACHINE Oil No. 18

20 Air pressure

21 Air consumption

22 Machine dimensions

23 Power consumption 200 VA

24 Mass

*1 : For the machine provided with the optional needle thread clamp unit, the buttonhole length is 10 to 28 mm.

*2 : Parallel section: Taper length can be set to such a value that does not exceed the total of the eyelet section and the

bartacking section.

*3 : The height of the completed unit differs with the height of the table stand.

range

Sewing speed

taper bar

method

Noise

99 (1 to 99) (standard patterns have been factory-numbered 90 to 99)

Single-/3-phase 200 to 240 V 50/60 Hz

Supply voltage uctuation: Rating ± 10 %

400 to 2,500 sti/min (in 100 sti/min steps)

Needle thread

trimmer type (00)

2.0 to 4.0 mm (factory-setting at the time of delivery: 2.5 mm)

Hammer pressure regulator: Standard 0.35 MPa (max. 0.4 MPa)

Machine head: 382 mm (width) x 656 mm (length) x 584 mm (height)

: 1050 mm (width) x 700 mm (length) x 1248 mm (height) *3 (excluding the thread stand)

: 1060 mm (width) x 790 mm (length) x 1096 mm (height) *3 (excluding the thread stand)

Machine head: Approx. 110 kg; Operation panel: Approx. 0.3 kg

Equivalent continuous emission sound pressure level (LpA) at the workstation :

A-weighted value of 82.0 dB; (Includes KpA = 2.5 dB); according to ISO 10821-

C.6.3 -ISO 11204 GR2 at 2,500 sti/min for the sewing cycle, 3.8 sec. (Pattern :

No.90).

Sound power level (LWA) ;

A-weighted value of 92.5 dB; (Includes KWA = 2.5 dB); according to ISO 10821-

C.6.3 -ISO 3744 GR2 at 2,500 sti/min for the sewing cycle, 3.8 sec. (Pattern :

No.90).

Overall thread

trimmer type (01)

10 to 28 mm 10 to 38 mm

[1.5 to 5.0 mm by compensation on the feed panel]

49.5 ℓ /min (11.6 cycles/min)

Complete unit (Table-xed type)

Complete unit (Semi-sunken type)

Control box: Approx. 4.5 kg

5°C to 35°C

Needle thread

trimmer type (00)

3 to 15 mm *2

Driven by air cylinder

Main regulator: 0.5 MPa

trimmer type (01)

Overall thread

10 to 28 mm

– 1 –

Page 5

2. NAME OF EACH COMPONENT

❼

❶

❾

• Hand pulley ❼

The needle bar can be lifted or lowered by hand

with the hand pulley.

❽

❼

󱢳

❸

❷

❶ Temporary stop switch ❷ Presser switch ❸ Start switch ❹ Operation panel

❺ Control box ❻ Power switch ❼ Hand pulley ❽ Machine head

❹

❺

❻

❾ Thread stand 󱢳 Feed base

– 2 –

Page 6

3. INSTALLATION

DANGER :

1. The sewing machine should be installed by a trained technician.

2. Contact the distributor or a professional electrician to ask him/her to carry out electric wiring.

3. The sewing machine has a mass of approximately 110 kg. Four or more workers are required to carry out the installation of the sewing machine and adjustment of the table height.

4. Never connect the power plug until the installation of the sewing machine is completed in order to protect against an accident due to an abrupt startup of the sewing machine.

6. Be sure to raise/return the sewing machine from/to its home position by holding it with both

7. Do not apply an unreasonable force to the sewing machine when it is in the raised position. If

• Use the table and stand which are able to withstand the sewing machine mass (110 kg) and vibration. The

• Use the table stand which has an appropriate height for the sake of the operator's ease of use.

• The xing bolt for xing the table and the stand should be of the length which matches the thickness of the

• The table differs between the table-xed type and the semi-sunken type machine heads. Appropriately

Be sure to ground the earthing wire in order to protect against an accident due to electrical

leakage.

hands.

such a force is applied, the sewing machine can lose its balance to fall alone or fall together with the table, resulting in personal injury or sewing-machine breakage.

3-1. Table

table thickness of which is 40 - 60 mm should be used.

table.

machine the table referring to the table drawing corresponding to the type of the machine head.

1. In the case the table thickness exceeds 60 mm, the length of the bolts supplied with the unit as

accessories is adequate.

2. In the case the xing bolt for xing the table and the stand is too long for the table thickness,

unexpected injury to hands or head can occur.

(1) Drawing of the stand

（715）

（630～965）

500

– 3 –

Page 7

(2) Drawing of the table(Table-xed type)

Ø32

2X(

Ø12

Ø17)

2X(

Ø6)

Ø12

Ø6

2Ｘ

56±1

Ø6)

Ø12

2X(

116±4

-1

109±1

±1 50

3±1

Ø6)

-1

500±1.5

320±1

60°±5°

48.5±1

+0.1

Ø 4X

30°

Z-Z

55±1

(4箇所)

Z-Z

(4 locations)

Ø50

4X(

Ø13)

8±1

4X(

Ø9 4X

Ø9)

Ø26

30±2

10±1

277±3.5

(30°)

Ø9) (4X

1050

1000

928 915

907.5

895

Ø6

80±1

2Ｘ

50±4

80±1

70±1

Ｘ（R)

50±4

Ø6

2Ｘ

90±4

±5

100

±1

368

385

486±3.5207±3.5

Ｘ

Ø13

254±3.5

68±1

250±1

252±1

715±3

670

G 2×ø3.5±0.5 depth 30 (on the bottom surface)

H R2 (all corners)

I Right side

570

530

490

410

370 365

D 4×ø2.5±0.5 depth 30

E 2×ø4.5±0.5 depth 30

F 2×ø4.5±0.5 depth 30

730

254±3.5

-1

Z Z

Ø9 X 4

50 40

680

670

615

598

595

555

530

330

260

175

149

118

A 2×ø4.5±0.5 depth 30

B 2×ø4.5±0.5 depth 30

C 2×ø3.5±0.5 depth 30 (on the bottom surface)

– 4 –

Page 8

(3) Drawing of the table (Semi-sunken type)

In the case the semi-sunken type machine head is used, the kit for semi-sunken type (part number : 40157881)

is required. Prepare the kit simultaneously with the table.

In the case the semi-sunken type machine head is used, the table reinforcing plate (part number:

32080707）(supplied with the kit (part number: 40157881)) has to be installed without exceptions. (Refer to "3-5.(2) ① Installing the table reinforcing plate" p. 11.)

40±1

1010

872

760

Note) When no

instruction is given,

740

±1 170

+ 1

26 Depth of coun-

terbore

the corner radius

A 4×9 drilled hole

shall be R5.

B 4×8 drilled hole 22

±1 56

±1 168

±1

37±2

±1

±2 173

Y Y

Depth of counter-

8 R

+ 1

bore

+ 1

26 Depth of coun-

terbore

hole,depth 20±3

C 4×9 drilled hole

D 4×2.5±0.5 drilled

461

±4 116

8 R

±2 176

4×8 drilled hole

109±1

320

±1

+ 1

22 Depth of coun-

terbore

60°±5°

297±3

±2 241

±1 214

48.5±1

±2 199

F 2×6 drilled hole

+ 1

12 Depth of coun-

323

terbore

G 2×3.5±0.5 drilled

±1

+ 1

12 Depth of coun-

N 2×6 drilled hole

terbore

1060

Z-Z

(2カ所) Z-Z

±0.5

hole,depth 20±3

(on the bottom

surface)

R2 (all corners)I Right side

17 drilled hole

238

145±3

K 17 drilled hole

L 8×10 drilled hole

M 30 drilled hole

(2 locations)

55±1

±1

±2

167

905 898

885

Y-Y

(2カ所) Y-Y

(2 locations)

±0.5

±1 170

±2

44±144±1

±2 173

±1

±1 170

225

±1

±2 176

385

±1.5

±2

±1

199

214

±2

241

253

165

±2

610

±2

±2 167

±1

125

±2

±3 715

±1

480

±1 170

225

122.5

500

740

790

±1.5

231

138

– 5 –

Page 9

3-2. Installing the control box

❷

❸ ❹ ❺

❶

Install control box ❶ to the location illustrated in the

gure using four bolts ❷, four plain washers ❸ and four spring washers ❹ and four hexagonal nuts ❺

supplied with the unit.

1. Install control box ❶ 30 mm or more away from the stand. If control box ❶ is located too close to the stand, the for-

mer can get hot or the sewing machine can malfunction.

2. In the case the semi-sunken type machine head used, install the control box after carrying out the procedure written

in "3-9. Installing the regulator and the

manifold" p. 20.

Bolt ❷ is a cup head square neck bolt (M8;

Length: 70 mm) and nut ❺ is a hexagonal

nut (M8).

30 mm or more

3-3. Installing and connecting the power switch

1) Installing the power switch

Fix power switch ❶ on the underside of the table with two wood screws ❷.

In the case the semi-sunken type machine

head used, install the control box after carrying out the procedure written in "3-9.

Installing the regulator and the manifold"

p. 20.

❶

❷

Wood screw ❷ has the nominal diameter of

5.1 mm and a length of 20 mm.

– 6 –

Page 10

2) Connecting the power cable

Voltage specications are shown on the power indication tag attached on the power cable and on the rating

plate adhered on the power box. Connect the cable which matches the specications.

Power indication tag

Rating plate

(For example: In the case of 200V)

Never use the machine unless the voltage specications described on the power indicator label

are satised.

• Connecting three phase 200V to 240V

AC200 to AC240 V

Green/Yellow

– GND

Table

Red

Black

Red White

Power source cord

Black

Power switch side

Plug side

White

Power switch

• Connecting single phase 200V to 240V

AC200 to AC240 V

Green/Yellow

– GND

Table

Brown

Light blue

Power source cord

Power switch side

Plug side

Light blue

Power switch

Red

Green

Black

Green/ Yellow

White

PlugControl box

Green/ Yellow

Brown

Control box

Plug

Green/ Yellow

Light blue

– 7 –

Page 11

3-4. Taking out the sewing machine

DANGER :

1. The sewing machine should be taken out by a trained technician(s).

2. The sewing machine has a mass of approximately 110 kg. Four or more workers are required

to take out the sewing machine.

4. Never connect the power plug until the installation of the sewing machine is completed in order

3. Do not apply an unreasonable force to the sewing machine until the installation of the sewing machine is completed. If such a force is applied, the sewing machine can lose its balance and can fall alone or together with the table, resulting in personal injury or sewing-machine breakage.

to protect against an accident due to an abrupt startup of the sewing machine.

❹

❸

❺

❷

1) Remove accessory boxes ❶ and ❷ in the direction

of the arrow.

2) Remove upper foam polystyrene ❸ in the direction

of the arrow.

3) Remove the right and left intermediate foam poly-

styrene ❹ and ❺ in the direction of the arrow.

❶

4) Take out the sewing machine from the package, by four workers, holding the portions illustrated in the gure.

Place it on the oor.

Place a cardboard sheet or packing material between

the oor and the sewing machine in order to avoid

damaging the oor and to prevent the cords from

being pinched between the INT cover and the oor.

Cord

INT cover

– 8 –

Page 12

3-5. Installing the sewing machine

WARNING :

The sewing machine has to be carried by four or more workers. Carry out the installation work on a level place.

(1) In the case of the table-xed type machine head

1) Remove the paper liners from four bolt rubbers B

❶

❶. Place and adhere the liners over the holes in

the table. (Place the bolt rubber B with its convex

side faced downward.)

❾

Under-

side

Paper

liner

2) Place the sewing machine on

the top surface of the table in

such a way that the concave

sections A of the bottom cover t on bolt rubbers B ❶.

3) Remove four setscrews ❾. Remove INT cover 󱢳.

Put air tubes and cords coming

from the sewing machine head

into the hole in the table.

5) Install INT cover 󱢳 with four setscrews ❾.

4) 5)

❾

󱢳

Air tube

󱢳

1. Lift the sewing machine head with four or more people by holding the sections marked with

dotted circle as shown in the gure.

2. Do not hold the underside of hinge stopper, bottom cover, and feed base.

Hinge stopper

Bottom cover

Cord

Feed base

❾

– 9 –

Page 13

6), 7)

❽

❻

❺

❼ ❹

6) Remove machine head xing bolts ❽. Raise the

sewing machine to the 1st step of the hinge stop-

per.

When raising the sewing machine, refer to "3-6.

Raising and returning the sewing machine" p.

16.

WARNING :

Do not raise the sewing machine above the 1st step of the hinge stopper. If it is raised above the 1st step, the sewing machine can fall, resulting in personal injury or sewing machine breakage.

8) to 10)

❻

❼

❺

❹

❸ ❹

❺

❺ ❹

❸

❷

7) Open front cover ❷. Insert a bolt ❸, a washer ❹ and a bolt rubber ❺ from the right front side of the

sewing machine, and temporarily x them with a

bolt rubber ❺ a washer ❹, a packing ❼ and two nuts ❻.

8) Be sure to raise the sewing machine to the fourth

step of the hinge stopper.

Fix the sewing machine with remaining three bolts

❸, six washers ❹, six bolt rubbers ❺, three packings ❼ and six nuts ❻.

9) Remove bolt ❸ and two nuts ❻ which have been

used for temporarily xing.

WARNING :

If your body comes in contact with the corner section of connector cover ❾ of the lateral-direction motor during work, unexpected injury can be caused. Be sure to keep away from the corner section of the connector cover.

❸

❼ ❹

❺

❹

❻

❸

❼

❹

❺

❺ ❹ ❻

❻

❸

❻

10) Attach bolt ❸ and two nuts ❻ removed in the

above step of procedure in the reverse direction

and x them.

Fix bolt ❸ and nuts ❻ in such a state that

bolt rubber ❺ is slightly squeezed.

1. Keep machine head xing bolt ❽ since

it is necessary when moving the sewing

machine. Whenever you move the sew-

ing machine, be sure to install the head

xing bolt in place.

2. Bolt ❸ is an M8 hexagon socket head

bolt (length: 85 mm). Nut ❻ is an M8 one.

– 10 –

Page 14

(2) In the case of the semi-sunken type machine head

❸

❶

❹ ❺ ❻ ❸

❷

❶

① Installing the table reinforcing plate

1) Fix two table reinforcing plates ❷ on the table ❶ with eight bolts ❸ , eight plain washers ❹ , eight spring washers ❺ and 16 nuts ❻.

The bolt ❸ is M6 carriage bolt length of which is 60 mm. The dimensions of the plain washer ❹ are "φ12.5 xφ6.4 x t1.6". Spring washer ❺ is for M6 and nut ❻ is M6 (class 1). Bolts ❸, plain washers ❹, spring washers ❺ and nuts ❻ are supplied with the kit for semi-sunken type machine head (part number: 40157881).

❶

Under-

side

❷

Paper

liner

❶

⇦

② Assembling the bottom cover stay (front)

1) Remove paper liners ❸ from two bottom rubbers B ❶ and afx them on bottom cover stay ❷.

* Afx two right-side bottom rubbers B ❶ with shifted

to the left side (in the direction of the arrow) with respect to slot A in bottom cover stay ❷.

Under-

side

③ Assembling the bottom cover stay (rear)

1) Remove paper liners ❸ from two bottom rubbers B ❶ and afx them on bottom cover stay ❷.

* Afx two right-side bottom rubbers B ❶ with shifted

to the right side (in the direction of the arrow) with respect to slot A in bottom cover stay ❷.

❷

Paper

liner

❶❶

⇦

1. Insert bottom rubbers B ❶ into the respective holes in bottom cover stay ❷ while holding them

so that their projecting side is faced downward.

2. Carefully check the location of mounting holes in left-side bottom rubbers B ❶.

Bolt rubber B ❶ is the head accessories. In addition, bottom cover stay ❷ are supplied with the kit

for semi-sunken type machine head (part number: 40157881).

– 11 –

Page 15

❷

❸

❶

❸

❶

④ INSTALLATION

1) Place table ❶, bottom cover stay (front) ❷ and bottom cover stay (rear) ❸ on the

oor.

2) Align bottom cover stay mounting hole A in table ❶ with mounting holes B for the

respective bottom cover stays.

At this time, the distance between

the respective bottom cover stays

must be 309 mm, and the distance between bottom cover stay (rear) ❸

and table ❶ must is 81 mm.

❺

309mm

81mm

3) Put the machine head on the bottom cover

stays.

At this time, put the machine head in such

a way that bottom rubber B ❹ ts in de- pressed portions C in bottom cover ❺.

❺

❹

– 12 –

Page 16

1. Lift the sewing machine head with four or more people by holding the sections marked with dotted circle as shown in the gure.

2. Do not hold hinge stopper ❻, bottom ❺ of bottom cover D and depressed portion E on the

side face.

❺

❻

❺

3. When putting the machine head on the bottom cover stays, carefully prevent handle ❼ and INT cover ❽ from coming in contact with table ❶. In addition, do not place the wiring and piping between INT cover ❽ and table ❶.

Wiring, piping

❶

❼

❽

❾

󱢳

❾❶

󱢴 󱢵

4) Lifting table ❶, join table ❶, bottom cover stay (front) ❷ and bottom cover stay (rear)

❸ with eight bolts ❾, eight plain washers 󱢳, eight spring washers 󱢴 and 16 nuts 󱢵 .

The bolt ❾ is M8 carriage bolt length of which is 70 mm. The dimensions

of the plain washer 󱢳 are "φ30 xφ8.5 x t2". Spring washer 󱢴 is for

M8 and nut 󱢵 is M8 (class 1). Bolts ❾, plain washers 󱢳, spring washers 󱢴 and nuts 󱢵 are sup-

plied with the kit for semi-sunken type machine head (part number:

40157881).

– 13 –

Page 17

󱢶

❶

󱢷

❶

5) Holding table ❶ at its four corners with

four or more workers, place it on assembled table stand 󱢶 and x with four bolts 󱢷, four plain washers 󱢸, four spring washers 󱢹 and four nuts 󱢺.

1. Lift the table ❶ has to be carried

by four or more workers.

2. Lift the table ❶ while keeping it

in a horizontal position without

tilting.

Bolt 󱢷 is carriage bolt with 18 5/16

threads and is 70 mm long. Plain washer 󱢸 is of "φ18 xφ8.5 x t1.6".

Spring washer 󱢹 is of "φ15 x φ9 x

t2". Nut 󱢺 has 18 5/16 threads.

Bolt 󱢷, plain washer 󱢸, spring

washer 󱢹, nut 󱢺 is the head acces-

sories.

󱢼

󱢽 󱢾 󱢿

󱢿 󱢾

󱣀

󱢹

󱢻

󱢸 󱢺

6) Remove machine head xing bolts 󱢻.

Raise the sewing machine to the 3rd step

of the hinge stopper.

When raising the sewing machine, refer to

"3-6. Raising and returning the sewing

machine" p. 16.

7) Secure the machine head by xing two

bolts 󱢼, two packings 󱢽, four plain wash- ers 󱢾, four bolt rubbers 󱢿 and four nuts 󱣀

at two locations on this side of the sewing

machine.

Fix bolt 󱢼 and nuts 󱣀 in such a

state that bolt rubber 󱢿 is slightly

squeezed.

– 14 –

Page 18

8) Raise the sewing machine to the 4th step

of the hinge stopper.

When raising the sewing machine, refer to

"3-6. Raising and returning the sewing

machine" p. 16.

󱢼

9) Secure the machine head by xing two

bolts 󱢼, two packings 󱢽, four plain wash- ers 󱢾, four bolt rubbers 󱢿 and four nuts 󱣀

󱢽 󱢾 󱢿

󱢿 󱢾

󱣀

1. Keep machine head xing bolt 󱢻 since it is necessary when moving the sewing machine. When-

ever you move the sewing machine, be sure to install the head xing bolt in place.

2. The bolt 󱢼 is M8 hexagon socket head screws of which is 50 mm. The dimensions of the plain washer 󱢾 are "φ30 xφ8.5 x t2" and nut 󱣀 is M8 (class 3).

Bolt 󱢼, packing 󱢽 plain washer 󱢾, bolt rubber 󱢿, nut 󱣀 is the head accessories.

at two locations on far side of the sewing

machine.

Fix bolt 󱢼 and nuts 󱣀 in such a

state that bolt rubber 󱢿 is slightly

squeezed.

❷

10) Secure tray 󱣁 on bottom cover stay (front) ❷ with three setscrews 󱣂.

Setscrew 󱣂 is an M4 round head

screw with washer and has a length

of 12 mm.

Tray 󱣁 and setscrews 󱣂 are sup-

plied with the kit for semi-sunken

type machine head (part number:

40157881).

󱣁

󱣂

– 15 –

Page 19

3-6. Raising and returning the sewing machine

DANGER :

1. Do not lift the sewing machine for any purpose other than for installation, repair or adjustment in order to prevent accidents resulting in personal injuries due to pinching. In addition, the sewing machine has to be lifted for repair or adjustment only by a maintenance technician

who is familiar with the machine.

2. If you nd the sewing machine is too heavy to lift, the gas spring may have malfunctioned

due to outgassing.

Never lift the sewing machine in such a state since the machine can drop to pinch hands,

ngers and arms resulting in serious injury.

* Carefully read the description given in "10-14. (6) Standard of replacing time of the gas spring"

p.94 and "10-14. (7) Replacing the gas spring" p.95.

3. Be sure to carry out the work while strictly observing the following in order to protect against serious injury to hands, ngers and/or arms due to pinching in the relevant parts of the sewing

machine.

• Be sure to hold the sewing machine by the ribs located on the front side of the bed.

•

Be sure to securely x the sewing machine in the raised position by locking the hinge stopper.

4. Do hole hold any part other than the ribs located on the front side of the bed.

5. If you raise the sewing machine with the feed base remained this side, the feed base can move to pinch hands and ngers resulting in an unexpected injury.

WARNING :

When raising/returning the sewing machine from/to its home position, check to be sure that the sewing machine is locked by the support shaft in the stop position of each step of the hinge stopper.

The sewing machine can be raised/returned to/from four different heights.

1st step 2nd step

3rd step

4th step

– 16 –

Page 20

❹

❼

❻

❷

❺

❽

❸

❶

❷

1) To raise the sewing machine, rstly push feed

base ❷ away from you (in the direction of the arrow), then insert at-blade screwdriver ❹ into bottom-cover opening tool slot ❸, turn it counter-

clockwise to release the sewing machine up/down lock ❺.

2) Turn at-blade screwdriver ❹ to keep the lock

in the released state, and slightly lift the sewing machine by holding it by rib ❶ located on the front

side of the bed.

3) Carefully remove at-blade screwdriver ❹. Hold ribs ❶ located on the front side of the bed with

your both hands to slowly lift the sewing machine to the 1st step of hinge stopper ❻.

At this time, do not hold feed base ❷ and feed

guide shaft ❽.

4) Check to be sure that hinge stopper ❻ is locked by support shaft ❼. Then, take hands off the ribs.

5) To raise the sewing machine to the 1st to 3rd steps of the hinge stopper, hold ribs ❶ located on the

front side of the bed with your both hands to slowly

lift it to the required step of the hinge stopper.

– 17 –

Page 21

[To lift the sewing machine from the 3rd to 4th step of the hinge stopper]

6) Hold rib ❶ located on the front side of the bed with your right hand to draw hinge stopper ❻ in direction of

arrow A until the lock is released. Then, slowly lift the sewing machine.

7) Hold ribs ❶ located on the front side of the bed with your both hands to slowly lift the sewing machine to the 4th step of hinge stopper ❻.

❶

❻

❷

❽

❶

8) To return the sewing machine to its home position, rstly check to be sure that there is no tool such as a

screwdriver inside the bottom cover.

9) Hold rib ❶ located on the front side of the bed with your right hand to slightly lift the sewing machine. Then, hold handle ❻ of the hinge stopper with your left hand and pull it toward you (in direction A) until the lock is released, then slowly lower the sewing machine.

10) Take your left hand off the stopper section. While supporting ribs ❶ located on the front side of the bed with your both hands, lower the sewing machine further.

DANGER :

1. Do not lower the sewing machine while keeping pulling the hinge stopper in direction A, in order to prevent pining of ngers, hands and arms under the sewing machine leading to a serious injury. (Be sure to take your hands off the hinge stopper.)

2. Do not hold feed base ❷ and feed guide shaft ❽.

11) At its each step, the hinge stopper is locked to secure the sewing machine at the corresponding height.

Following the procedure described in 9), hold rib ❶ on the front side of the bed with your right hand to slightly lift the sewing machine. Then, hold the handle of the hinge stopper with your left hand to release the lock and slowly lower the sewing machine.

12) The sewing machine is stopped again at the nal step of its lowering for the sake of safety. Following the

procedure described in 9), hold rib ❶ on the front side of the bed with your right hand to slightly lift the sewing machine. Then, hold the handle of the hinge stopper with your left hand to release the lock and slowly lower the sewing machine.

DANGER :

Take care to prevent pinching of hands and ngers between the sewing machine and the bottom cover. It should be strictly prohibited to lower the sewing machine by two or more workers while holding it by any section other than the ribs located on the front side of the bed since it can cause a pinching accident resulting in a serious injury to hands, ngers and/or arms.

– 18 –

Page 22

3-7. Installing the poly oiler

❺

❷

❶

❸

❹

❼

❺

1) Place the sewing machine in its home position.

2) nstall oil drain cock ❶, oil seal ❷ and washer ❸ on bottom cover ❺ with four setscrews ❹.

3) Raise the sewing machine.

4) Drive spring pin ❼ of bottom cover ❺ into bottom cover ❺ until it is almost ush with bottom cover ❺.

Take care not to crack bottom cover ❺ when

driving in spring pin ❼.

❼

❻

❼

❶

❽

3-8. Installing the operation panel

❺

❷

❶

❸

❹

Make a knot in the oil wick ❻ (ø2.5 mm). Insert oil wick ❻ (ø2.5 mm) into spring pin ❼ of bottom cover ❺ until its end comes from oil drain cock ❶.

At this time, insert oil wick ❻ (ø2.5 mm) supplied

as accessories into the slit in spring pin ❼.

6) Install poly oiler ❽ on oil drain cock ❶.

Refer to "3-6. Raising and returning the

sewing machine" p. 16 when you raise or

return the sewing machine.

1) Fix operation panel installing plate ❶ on the table

at a desired location near its right end with four wood screws ❷.

2) Put the cable of operation panel ❺ through hole ❹ in the table.

3) Fix operation panel ❺ on operating panel mounting plate ❶ with three setscrews ❸.

Wood screw ❷ has the nominal diameter

of 3.8 mm and a length of 20 mm. Setscrew ❸ is an M4 round head screw with washer

and has a length of 16 mm.

– 19 –

Page 23

3-9. Installing the regulator and the manifold

1) Install manifold asm. 󱢳 on manifold mounting plate ❾ with four setscrews 󱢴.

2) Install solenoid valve 󱢵 on manifold mounting plate ❾ with two setscrews 󱢶.

󱢶

󱢵

❸

❹

❾

❼

❻

󱢳

󱢴

❸

❹

❻ ❼

3) Install regulator asm. ❶ on table ❷ with two setscrews ❸ and two washers ❹.

4) Install manifold ❺ on table ❷ with two setscrews ❻, four washers ❼ and two nuts ❽.

󱢸

❷

❶

❼

❽

❺

Table-xed type Semi-sunken type

❷

❶

5) Attach plugs 󱢷 and 󱢸 to manifold asm. 󱢳 at the

locations shown in the gure at left.

Plug 󱢷 is for ø4 hole and plug 󱢸 is for ø6

󱢷

❺

hole.

❼

❽

Setscrews ❸ and ❻

are pan head screws

M5 of length 50 (mm). Setscrews 󱢴 and 󱢶 are

hexagon socket head

screws M4 of length

30. Nuts ❽ are hexagon

nuts M5.

󱢷

00 type 01 type

󱢷

– 20 –

Page 24

[For the needle thread clamp unit]

❷

❸

❶

❷

1) Install manifold asm. ❶ for the

needle thread clamp on manifold mounting plate ❷ with four setscrews ❸.

❸

Setscrew ❸ is M4 hexa-

gon socket head screws of

which is 30 mm.

❶

Table-xed type

Semi-sunken type

❺

❽

❹

❷

❼

Semi-sunken type

❻

2) For the table-xed type machine head, install manifold mounting plate ❷ which has been assembled in 1) on table ❹ with two setscrews ❺ and two washers ❽. For the semi-sunken type machine head, install it on bottom cover stay (rear) ❻ with two setscrews ❼.

Setscrew ❺ is M5 50-mm long pan head screw. Setscrew ❼ is M5 12 mm long pan head screw with

washer.

❶

❾

3) Attach plug ❾ to manifold asm. ❶ for the needle

thread clamp at the locations shown in the gure

at left.

For one of plugs ❾, remove No. 39 of the manifold

asm. and attach the plug instead. (Pipe is connect-

ed to No.39.)

– 21 –

󱢳

❶

4) Connect connector A of standard manifold 󱢳 and connector B of manifold asm. ❶ for the needle

thread clamp.

Page 25

3-10. Connecting the cords

DANGER :

To prevent personal injuries caused by electric shock hazards or abrupt start of the sewing machine, carry out the work after turning OFF the power switch and a lapse of 5 minutes or more. To prevent accidents caused by unaccustomed work or electric shock, request the electric expert or engineer of our dealers when adjusting the electrical components.

❷

❶

1) Loosen four setscrews ❷ of control box cover ❶.

Remove control box cover ❶.

2) Connect the cords to the respective connectors

on MAIN PWB, SDC PWB. (Fig. 1)

3) Fix the shielded ground wire of the INT PCB signal

cord at location A of the control box with a screw.

(Fig. 2)

SDC PWB

MAIN PWB

CN15

CN17

CN30

CN45

CN34

CN35

CN44

CN43 9P

CN30 White

16P

50P

26P

30P

White

Brown

Gray

White

Blue

Red

MAIN PWB

Sewing

machine head

Operation

panel

Air

switch

Solenoid

valve

10P

Foot pedal switch

(Option)

CN44

Blue

CN34

Gray

CN45

Brown

CN17

White

CN15

White

(Fig. 1)

– 22 –

SDC PWB

Shielded ground wire

(Fig. 2)

Page 26

3-11. Handling the cords

DANGER :

❶

❷

1) Bring the cords under the table into the control box.

2) Put the cord brought into the control box through cord exit plate ❶ and x cable clip band ❷.

❸

3) Install control box lid ❸ with four setscrews ❹.

❹

– 23 –

Page 27

3-12. Installing the foot pedal switch (optional)

DANGER :

The hand switch is provided on the standard type machine.

To use the optional foot pedal switch (part number: 40033831), connect it in the procedure described below.

When installing the foot pedal switch, the foot pedal switch junction cable asm. (part number: 40114433) is

also required. Refer to "11-6. Others" p. 98.

1) Loosen the four setscrews in the control box to remove cover ❶.

❶

❹

❷

❸

2) Fix earthing wire ❷ of the foot pedal switch at

❺

location A of the control box.

Pass the earthing wire through cord exit

plate ❸. If not, it can be caught under the

cover when closing it.

3) Connect foot pedal switch junction cable ❹ to the

foot pedal switch cable (B) and connect the oppo-

site side of the junction cable to CN43 connector

on the PWB (C).

4) Fix the cable.

Loosen cable clip band ❺. Fix the foot pedal switch

cables (excluding earthing wire ❷) by means of cable clip band ❺ together with other related ca-

bles.

DANGER :

It is very important to carefully connect the

cables to the correct connectors on the

PWB. Wrong connection poses a great risk.

Even in the case the optional foot pedal

switch is installed on the sewing machine,

the hand switch is still enabled. Carefully

operate the switches since the sewing

machine is activated by operating either

switch.

– 24 –

Page 28

3-13. Connecting the air supply

(1) Connecting the regulator and the manifold

❸

❶

[For the needle thread clamp]

❶

❸

❹

❷

❻

1) Connect joint ❶ of the regulator and joint ❷ of the manifold by means of the air tube ø10 ❸.

1)-1. Connect air tube ø10 ❸ and joint ❷ of the manifold by means of T-joint ❹ which has a short air

tube.

1)-2. Connect T-joint ❹ and joint ❻ of the manifold

for the needle thread clamp by means of air tube ø10 ❼.

❾

❼

2) Connect joint ❽ of the cloth trimming regulator and joint ❾ of the cloth trimming solenoid valve by means of the air tube ø10 ❺.

❺

❽

– 25 –

Page 29

(2) Connecting the air tubes

Connect the respective air tubes coming from the sewing machine head to the respective solenoid valves

matching their numbers correspondingly.

No.1

No.2

No.3

No.5

No.7

No.9

No.10

No.4

No.6

No.8

No.39 (In the case of the

needle thread clamp)

No.11

No.12

[In the case of the needle thread clamp unit]

No.35

No.36

No.15

No.16

No.38

No.37

Cable

Cable clip band (L150) supplied with the unit as an accessory

After the connection of the respective air tubes,

neatly bundle the cables etc. coming from the

sewing machine with the cable clip band sup-

plied with the unit as an accessory.

– 26 –

Page 30

3-14. Installing the air hose

❸

❷

❶

Open

❺

❹

■ Connecting the air hose

Connect the air hose to the regulator using the

hose band and quick-coupling socket joint supplied

with the unit.

■ Adjusting the air pressure

Open air cock ❶.

[Main regulator]

Pull up and turn air pressure regulating knob ❸ of

main regulator ❷ to adjust the pneumatic pressure

to 0.5 MPa. Then, push down the knob to x it.

[Regulator for cloth trimming knife pressure]

Pull down air pressure regulating knob ❺ of reg-

ulator ❹ for the cloth trimming knife pressure and

turn it to adjust the air pressure to 0.35 MPa. Then,

push up the knob to x it.

(The air pressure of the cloth trimming knife can be

adjusted in the range of 0.2 to 0.4 MPa by means of regulator ❹.)

Regulator ❹ for the cloth trimming knife has

been factory-adjusted to 0.35 MPa. Do not

increase the air pressure unless it is really

necessary. Increased air pressure can cause

a decrease in sharpness of the knife and/or

knife breakage.

After the completion of the respective air pressures

adjustment, close air cock ❶ to remove air. Then,

re-open the air cock to adjust the respective air

pressures.

* The air is removed by closing air cock ❶.

– 27 –

Page 31

3-15.

Cautions for the compressed air supply (source of supply air) facility

As large as 90 % of failures in pneumatic equipment (air cylinders, air solenoid valves) are caused by "con-

taminated air."

Compressed air contains lots of impurities such as moisture, dust, deteriorated oil and carbon particles. If

such "contaminated air" is used without taking any measures, it can a cause of troubles, inviting reduction in

productivity due to mechanical failures and reduced availability.

Be sure to install the standard air supply facility shown below whenever the machine provided with pneumat-

ic equipment is used.

Standard air supply facility to be prepared by the user

Air compressor

After cooler

Auto-drain

Air tank

Main line lter

Auto-drain

Air dryer

Mist separator

Filter regulator

Air solenoid valve

Quality of the air supply

When the supply air contains a considerable amount of moisture

Ambient environment

When our machine is installed at a place where the temperature greatly

changes in the morning and in the evening from that in the daytime or

freeze is like to occur

In the aforementioned cases, be sure to install an air dryer.

When the supply air contains a considerable amount of carbon and dust

(Most troubles in the air solenoid valves are caused by carbon.)

Be sure to install a mist separator.

Standard equipment supplied by JUKI

Air cylinder

Cautions for main piping

• Be sure to slope main piping by a falling gradient of 1 cm per 1 m in the direction of air ow.

• If the main piping is branched off, the outlet port of the compressed air should be provided at the

top part of the piping using a tee in order to prevent drain settling inside the piping from owing

out.

• Auto drains should be provided at all lower points or dead ends in order to prevent the drain from

settling in those parts.

– 28 –

Page 32

3-16. Installing the thread stand

1) Assemble the thread stand asm. and install it in the hole in the rear left part of the table.

2) Tighten locknut ❶ so that the thread stand is xed.

❶

– 29 –

Page 33

3-17. Installing the thread guides

❷

❶

1) Remove two thread guide plates ❶ and setscrew ❷.

2) Reverse one of thread guide plates ❶. Install the

thread guides so that they turn by approximately

40° to allow the thread to pass smoothly.

40° 40°

❹

❸

❺

3) Install thread guide bar ❸.

At this time, install thread

guide bar ❸ so that hole ❹ in thread guide bar ❸ is oriented to hole ❺ in the

AT thread guide.

❹

– 30 –

Page 34

3-18. Installing the eye protection cover and the nger guard

DANGER :

The eye protection cover and the nger guard are used to protect eyes against ying broken needle. Be sure to use the sewing machine with them installed without exceptions.

1) Assemble nger guard ❶ to safety plate bracket

❷

❶

❺

❻

❹

❸

❷ with two setscrews ❸.

Assemble nger guard ❶ equally with respect to

safety plate bracket ❷.

2) Assemble eye protection cover ❹ to safety plate bracket ❷ with two setscrews ❺ and two washers ❻.

3) Install the assembled eye protection cover and

nger guard asm. ❼ on face plate ❾ with screws ❽.

Setscrew ❸ is an M4 hexagon socket head

cap screw and has a length of 8 mm. Set-

screw ❺ is an M4 round head screw and has a length of 6 mm. Setscrew ❽ is an M4

round head screw and has a length of 6 mm.

❼

❾

❽

– 31 –

Page 35

3-19. Installing the cloth chip bag

❶

1) Connect cloth chip suction device ❶ and cloth chip tube ❷. Fix them with hose band ❻.

❷

❶

❻

❸

2) Install suspension hook ❸ to an easy-to-access

location on the underside of the table.

3) Suspend cloth chip bag ❹ on suspension hook

❸.

❹

❶

❷

❺

4) Open the zipper of cloth chip bag ❹ to put cloth chip suction device ❶ in it.

5) Place cloth chip suction device ❶ in the top part of cloth chip bag ❹ and close the zipper.

Adjust the length of cloth chip tube ❷ by cutting it

short at the point immediately below the table.

Be sure to empty the cloth chip bag before

If cloth chip tube ❷ is excessively long, cloth chip tube ❷ can be clogged with cloth chips

since cloth chips can interrupt the air ow from cloth chip suction device ❶.

cloth chips in the bag reach the top of cloth chip suction device ❶.

– 32 –

Page 36

3-20. Installing/removing the presser unit

Carefully prevent contact between the cloth trimming knife and the work clamp plate when moving

the feed base by hand or installing/removing the work clamp unit.

❹

❺

❹

❸

❹

❷

❻

❹

❷

❶

■How to install

1) Install the presser unit so that presser lever ❸ ts in the letter “U” of presser base ❷.

2) Adjust the hole of presser plate ❺ to cloth open pin ❹.

Turn clamp holding plate ❶ to hold presser plate ❺.

■How to remove

1) Turn clamp holding plate ❶ to remove from presser plate ❺.

2) Lifting presser plate ❺, remove it so as to draw it.

❶

❺

It is comparatively easy to install or remove the presser unit by moving feed base ❻ to the cloth

cutting position.

When moving feed base ❻ by hand, follow the aforementioned caution.

❻

– 33 –

Page 37

4. PREPARATION BEFORE OPERATION

4-1. Lubrication of the machine and how to lubricate

WARNING :

Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

＊ Use JUKI MACHINE OIL No. 18 as the machine oil.

(1) Lubricating the arm oil tank

Lubricate arm tank ❶ to such an extent of approxi-

mately 80 %.

In addition, add oil in the case the oil level has de-

❶

creased below the red marker dot during the daily use

of the sewing machine.

(2) Lubricating the bed oil tank

[ In the case of the table-xed type machine head ]

❷

[ In the case of the semi-sunken type machine head ]

❷

Lubricate bed oil tank ❷ up to the MAX. line A.

In addition, when the oil surface falls below the MIN line B during daily use, add an adequate quantity of oil.

If oil is added so that the oil level exceeds

the MAX line A, the oil will spill out of the

oil hole when the machine head is tilted

until it will go no further. Be careful when

replenishing the oil tank with oil.

Raise the sewing machine to the 2nd step of the hinge. Add oil in bed oil tank ❷ until the oil surface reaches the underside of MAX line A.

In addition, when the oil surface falls below the MIN line B during daily use, add an adequate quantity of oil.

Be aware that oil will spill out from the oil

hole when tilting the machine head if the

added oil surface exceeds the underside

of MAX line A.

– 34 –

Page 38

(3) Lubricating the looper and spreader components

1) Remove the presser plates, right and left.

2) Apply two to three drops of oil to looper link ❶,

spreader link ❷, spreader, right ❸, spreader, left

❹

❺

❸

❹ and spreader actuating cam ❺.

❶

❷

Be sure to lubricate the components once

a day. If the frequency of lubrication is small, especially, worn-out of ❸, ❹ and ❺ is caused and stitch skipping or needle

breakage will occur.

(4) Lubricating the looper bracket oil tank

❻

Put oil in looper bracket oil tank ❻ until its MAX

line is reached.

In addition, when the oil surface falls below the MIN

line during daily use, add an adequate quantity of

oil.

Put oil in the looper bracket oil tank using

the oiler (smaller one) supplied with the unit

while taking care not to spilling oil around

the tank.

Oil spilled around tank can y toward the

operator by the looper bracket operation

when the machine is running. Be sure to

wipe up the spilled oil to prevent the above.

– 35 –

Page 39

(5) Lubricating the needle bar and the gear section

Lubricate the components at the time of delivery or after an extended period of disuse.

❸

❹

❾

󱢳

❽

❶

❷

1) Loosen setscrews ❶ and remove face plate ❷.

2) Apply one or two drops of oil to needle bar bushing

❸, needle bar ❹ and felt ❽.

❶

3) Loosen setscrew ❾. Remove rear cover 󱢳.

❻

❾

❺

❼

❺

4) Loosen setscrew ❺ and remove the upper face

cover ❻.

❺

Remove the cover with care since the air

tube is connected with the cord.

5) Apply oil to gear lubricating felt ❼ in the sewing

machine arm.

6) After lubrication, install face plate ❷ and upper face

cover ❻.

Be careful not to allow the cords to be

caught in the machine.

– 36 –

Page 40

4-2. Attaching the needle

WARNING :

Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of

the sewing machine.

❶

Insert the needle until it will go no further.

Groove of the needle

The correct direction of the needle is that needle thread guide ❶ faces the opposite side of groove of

the needle.

1. Use the most suitable size of needle in

accordance with the kind and thickness

of thread and kind of material to be used.

2. When changing the size of needle, be

sure to adjust the clearance between the

needle and the looper. (Refer to "10-5.

Clearance between the needle and the

looper" p. 84.)

– 37 –

Page 41

4-3. Threading the machine head

WARNING :

Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of

the sewing machine.

(1) Threading the upper thread (needle thread)

Ⓑ

Ⓐ

Ⓑ

Ⓐ

Ⓒ

– 38 –

Page 42

(2) Threading the lower thread (looper thread)

For the model provided with the

needle thread clamp unit

Needle thread trimmer type

Gimp

Looper thread

Thread trimmer retaining plate

2. In the case of the overall thread trimmer type machine, pass the looper thread through the needle

In the case of the needle thread trimmer type machine, allow the thread trimmer retaining plate

If thread waste is clamped by the looper thread clamp or the thread trimmer retaining plate, remove

1. When passing the looper thread, turn looper bracket by 180 degrees of an angle in advance.

hole in the throat plate and allow the looper thread clamp to clamp it. Then, start sewing.

to clamp the looper thread and gimp. Then, start sewing.

it. If sewing is carried out when the thread waste remains clamped by either of them, the looper thread cannot be clamped properly, resulting in stitch skipping at the beginning of sewing.

– 39 –

Page 43

(3) Threading the machine with gimp

In case of thin thread, insert gimp in the gimp presser plate.

4-4. How to set the cloth on the sewing machine

❶

❷

1) Enter the sewing material until it comes in contact with cloth patches ❶, right and left.

2) Loosen setscrews ❷, right and left and adjust the sewing position by moving the cloth patches to and fro.

– 40 –

Page 44

5. STRUCTURE OF THE OPERATION SWITCH

5-1. Structure of the operation panel

❺

❽

❼

󱢴 󱢵

󱢸

❶

❷

❹❸

❻

󱢳

❾ 󱢼

󱢽

󱢷󱢶

󱢻󱢺󱢹

[Table of functions of the operation panel]

No. Name

Sewing LED

❶

READY key

❷

RESET key

❸

MODE key

❹

2-digit LED

❺

4-digit LED

❻

– key

❼

+ key

❽

❾ –/BACKWARD

key

Description

This LED goes out when the sewing machine is in data setting state

and lights up when the sewing machine is in sewing state. The status

of the LED is changed over by the Ready key.

This key is used to change over the status between the setting state

and the sewing state.

This key is used to release the error, reset the counter or release the

threading mode.

This key is used to activate the auxiliary function mode under which

the sewing mode, operation mode, pattern copy/deletion and memory

switch are set. This LED displays pattern No. in the normal state and displays data

number when setting the data.

This LED displays cut length in the normal state and displays content

of data when setting the data. It also displays the count value on the

counter and error number etc. This key is used to decrement the pattern No. in the normal state and

to decrement the data number when setting the data.

This key is used to increment the pattern No. in the normal state and to

increment the data number when setting the data.

This key is used to decrement the set value of data or the count value

on the counter when setting data. It is used to move the feed backward

by one stitch in the pause state.

– 41 –

Page 45

No. Name

+ / FORWARD

󱢳

key

THREAD

󱢴

TENSION

LED

THREAD

󱢵

TENSION key

Description

This key is used to increment the set value of data or the count value on

the counter when setting the data. It is used to move the feed forward by

one stitch in the pause state. This LED lights up when displaying/setting the needle thread tension.

This key is used to display/set the needle thread tension.

COUNTER

󱢶

LED

COUNTER

󱢷

key

THREADING

󱢸

key

KNIFE ON/

󱢹

OFF key

BEFORE-CUT

󱢺

KNIFE LED

AFTER-CUT

󱢻

KNIFE LED

DATA LED

󱢼

DATA key

󱢽

This LED lights up when displaying/setting the counter.

This key is used to display/set the set value of the counter.

This key is used to place the machine in the threading mode. (Note 1)

This key is used to change over the operation status of the cloth cutting

knife between enable/disable. The before-cut knife /after-cut knife LED

lights up/goes out. (Note 2) This LED lights up when the cloth cutting knife operates as before-cut

knife.

This LED lights up when the cloth cutting knife operates as after-cut knife.

This LED lights up when displaying/setting the data. (Note 3)

This key is used to display/set the pattern data. (Note 3)

Note 1 : The key is disabled immediately after the power-on. It is enabled after the completion of feed-base

origin retrieval by pressing the ready key once.

Note 2 : In the case Data No. 3 of the pattern data (before-cut knife/after-cut knife) is set to "without knife",

the Before-cut knife/After-cut knife LEDs stays off.

Note 3 : These keys are enabled only in the setting state where the sewing LED goes out.

(Reference) The 2-digit LED and 4-digit LED display data as shown below.

Numeric values 0 1 2 3 4 5 6 7 8 9

Digital display

Characters A B C D E F G H I J K L M

Digital display

Characters N O P Q R S T U V W X Y Z

Digital display

– 42 –

Page 46

5-2. Temporary stop switch

Temporary stop switch

5-3. Hand switch

Start switch lamp

This switch stops the operation of the sewing machine.

[Presser switch (right) ❶]

This switch performs up/down of the presser.

❷

❶

5-4. Foot switch (optional)

❷

[Start switch (left) ❷]

This switch performs the start of sewing.

When the start switch is effective, the start

switch lamp ashes on and off.

Before starting the sewing machine, close

the front cover.

[Presser switch ❶]

This switch performs up/down of the presser.

[Start switch ❷]

This switch performs the start of sewing.

Before starting the sewing machine, close

the front cover.

❶

– 43 –

Page 47

6. HOW TO USE THE OPERATION PANEL

In the case the sewing machine stops with its needle-bar rested in any position other than the upper

end when the READY key is pressed, Error (E030) will occur to stop the sewing machine.

In this case, turn the hand pulley to move the needle bar to its upper stop position. Error (E030)

will disappear when the upper stop position is reached. In this state, press the READY key

again to light up sewing LED A .

Standard patterns of pattern numbers 90 to 99 have been factory-set at the time of shipment. Refer

In addition, the needle bar will automatically return to the upper stop position when you press the READY key bar rests at any position between the upper stop position and a point short of the lower dead point.

even in the case the needle bar is not brought to its upper stop position as long as the needle

6-1. Basic operation of the sewing machine

to "15. STANDARD PATTERN LIST" p. 107 for pattern shapes.

1) Press – key ❹ or + key ❺ to select the

target pattern number B you want to sew.

❶

2) Press Ready key ❶ to light up Sewing LED

A to enable sewing. At this time, the presser foot

comes down and the feed bar and needle retrieve

the respective origins.

❹

❺

The presser and the feed base operate. Be careful that hands or ngers are not

being caught in them.

3) Place the sewing material under the presser foot.

Press the Presser foot switch to lower the presser foot. Press the Start switch to start sewing.

Before starting the sewing machine, close

the front cover.

6-2. Setting the thread tension

The actual thread tension varies in accordance with the kind or thickness of thread used even when

the set value is the same. Adjust the thread tension value to the thread used. If the thread tension set value is high, stitch skipping may be caused.

❶

❽

Thread tension to be applied to the respec-

tive sections of the sewing pattern can be changed separately. Refer to "9-1. Operating

procedure of thread tension compensation of each section" p. 73.

❼

❻

1) Press Thread tension key ❽ to light up

Thread tension LED D. The LED displays the set value of the thread tension.

2) Set the value of the thread tension C by pressing

–/BACKWARD key ❻ or +/FORWARD key

❼.

3) The set value is stored in memory when you press

Ready key ❶ or press the Start switch to start sewing.

4) When you press Thread tension key ❽ while

Thread tension LED D stays on, the screen returns to the normal display.

If the pattern number is changed or the power

is turned off without taking the procedure 3), the set value will not be stored in memory.

– 44 –

Page 48

6-3. Temporarily stopping the sewing machine

■ How to stop the sewing machine

1) Press temporary stop switch ❶.

The sewing machine stops and “E050” is displayed.

■ How to re-start

1) While "E050" is shown on the screen, press RESET

key ❷ to release the error and to restore the

screen to the display before the occurrence of the

❶

❷

❼

❻

error.

2) Re-start the sewing machine using the start switch,

or press –/BACKWARD key ❻ or +/FOR-

WARD key

travels forward/backward stitch by stitch.

Further, press RESET key ❷ to return the

sewing machine to the sewing start position.

1. Operation of –/BACKWARD ❻

key, +/FORWARD

SET key

trimming.

2. When temporarily stopping the sewing

machine during sewing and returning

the sewing machine to the start position

with RESET key

thread, cut the thread with scissors or

the like and perform the work. The work

can be performed without applying a

forced load to needle or sewing product.

❼ and the feed mechanism

❼ key or RE-

❷ cannot perform thread

❷, draw out needle

Before starting the sewing machine, close

the front cover.

– 45 –

Page 49

6-4. Performing re-sewing

Sewing can be performed without cloth-opening operation of the presser foot.

❶

❶

󱢴

❸

Step of operation

described in 2)

❸

❻

❼

If the Sewing LED stays ON, press the

Ready key ❶ to turn it OFF.

1) Press Mode key ❸ to display the mode setting

screen. Press –/BACKWARD key ❻ or +/ FORWARD key ❼ to display "oPEn".

2) Press Ready key ❶ to display the sewing

mode setting screen.

3) Set the sewing mode to "0", "1" or "2" by pressing

–/BACKWARD key ❻ or +/FORWARD key

❼.

4) Press Ready key ❶ to nish setting. If you

press Mode key ❸, the data you have set will

be cancelled.

5) While "oPEn" is shown on the screen, press Mode

key ❸ to return to the normal display.

Sewing machine operation under each sewing mode

(1) Normal mode (the sewing mode is set to "0",

i.e., the power-on state)

①

Press the Ready key ❶ to retrieve the origin

of the feed bar/needle bar. In the case memory switch No. 12 "Cloth set position selection" is set to "front", the feed bar travels to the near set position (memory switch No. 23). The cloth open mechanism is closed.

② Carry out sewing with the Presser foot switch and the Start switch. When the before-cut knife operates, the

cloth open mechanism opens after the completion of the operation of the cloth cutting knife. In the case of the after-cut knife/without knife, the cloth open mechanism opens simultaneously with the start of sewing.

The cloth open mechanism closes upon the completion of sewing.

(2) Re-sewing mode (when the Sewing mode is set to "1")

Press the Ready key ❶ to retrieve the origin of the feed bar/needle bar. Even in the case "cloth set

①

position selection" is set to "front", the feed bar keeps resting at the origin of the cloth cutting knife operating position. The cloth open mechanism remains open.

② The cloth open mechanism remains open even when sewing is performed with the Presser foot switch and

the Start switch.

(3) Cloth open mode (when the Sewing mode is set to "2")

①

Press the Ready key ❶ to retrieve the origin of the feed bar/needle bar. In the case "cloth set position selection" is set to "front", the feed bar travels to the near set position. The cloth open mechanism remains open.

② The cloth open mechanism remains open even when sewing is performed with the Presser foot switch and

the Start switch.

1. In the case the cloth cutting knife is not operated, knife operation should be prohibited by means

of the Knife ON/OFF key

desired" p. 48 for the procedure.

2. To set the material setting position to the front side, refer to "9-2. Changing the setting position

of cloth" p. 76.

󱢴. Refer to "6-7. When dropping of the knife is temporarily not

Before starting the sewing machine, close the front cover.

– 46 –

Page 50

6-5. Performing threading

WARNING :

Turn OFF the power after operation of steps 1) and 2), and replace needle, thread, cloth cutting

knife or hammer.

This operation cannot be carried out immediately after power-on. Carry out the following operation

after the origin retrieval of the feed bar/needle bar by pressing once the Ready key ❶.

❷

❶

󱢳

It is recommended to perform installing/

removing the presser unit after operating

the aforementioned step 1) and turning OFF

the power.

1) Press Threading key

The presser foot comes down.

①

󱢳.

② In the case memory switch No. 12 “material setting

position selection” is set to the front side, the feed

base travels backward (to origin position).

③ The needle bar turns by 180 degrees of an angle

to allow threading of the needle bar from the front

of the machine head.

2) Press Threading key

󱢳 again. Then, only

the needle bar returns to its origin.

3) The parts described in the aforementioned steps

① to ③ described above are returned to the home

position by pressing Reset key

The presser and the feed base operate.

Be careful that hands or ngers are not being

caught in them.

❷.

6-6. How to use the counter

❷

❾

The counter can be used as DOWN counter as well. Refer to "9-5. Changing over the counter (DOWN

counting)" p. 76 for the procedure.

❼

❻

The counter has been set to UP counter in

the state of delivery.

1) Press Counter key ❾ to light up Counter

LED E. The count value C is displayed on the LED.

2) Every time the sewing machine completes one

cycle stitching, the value increases by 1 count.

3) The counter value C can be changed with BACK-

WARD key

❻ or +/FORWARD key

❼.

4) Press RESET key ❷ to return the counter

value to “0”.

5) When you press Counter key ❾ while

Counter LED E stays on, the display on the LED is

restored to the normal display.

– 47 –

Page 51

6-7. When dropping of the knife is temporarily not desired

1) Press Knife ON/OFF key 󱢴 to make Be-

fore-cut knife LED F and After-cut knife LED G go

out.

2) Press Knife ON/OFF key 󱢴 again to light

up Before-cut knife LED

F or After-cut knife LED

G to enable the operation of the knife.

󱢴

Before-cut knife

operates

After-cut knife

operates

2. In the case the data No. 3 "Before-cut

1. Set enable/disable of the before-cut

knife/after-cut knife using data No. 3

"Before-cut knife/after-cut knife" of the

pattern data.

knife/after-cut knife" of the pattern data

is set to "disable", the Before-cut knife

LED and After-cut knife do not light up.

6-8. Changing the operation mode

The sewing operation of the sewing machine can be carried out by manual operation/step operation.

❸

❶

If the Sewing LED stays ON, press the

Ready key

❶ to turn it OFF.

❷

❸

❶

❼

❻

Step of operation

described in 2)

❼

❻

1) Press Mode key ❸ to display the mode setting

screen. Press –/BACKWARD key

❻ or +/

FORWARD key ❼ to display "STEP".

2) Press Ready key ❶ to call the operation

mode setting screen.

3) Press –/BACKWARD key ❻ or +/FORWARD

key

❼ to set the operation mode to "0", "1"

or "2".

4) Press Ready key ❶ to nish setting. If you

press Mode key ❸, the data you have set will

be canceled.

5) Press Mode key ❸ when "STEP" is displayed

on the screen to return to the normal display.

– 48 –

Page 52

Sewing machine operation under each operation mode

(1) NORMAL mode (when the operation mode is set to "0" and the power is ON)

Operation is carried out under the normal operation mode where the cloth cutting knife is activated and a

sewing sequence such as sewing and thread trimming is carried out by operating the Presser foot switch

and the Start switch.

Before starting the sewing machine, close the front cover.

(2) MANUAL mode (when the operation mode is set to "1")

Operate the Presser foot switch to lower the presser foot. Then, the operation is carried out as described

below. ① In the case of the before-cut knife is selected, the feed base is brought to its origin, when it is not there

by operating the Start switch.

② In the case of the before-cut knife is selected, the cloth cutting knife is activated by operating the Start

switch.

③

The cloth open mechanism is opened by operating the Start switch.

④ The feed base is brought to the sewing starting position by operating the Start switch. Then, the buzzer

sounds.

⑤ Turn the pulley in the direction of the arrow. The feed base is travels stitch by stitch in conjunction with

the needle position. Keep the pulley turning until the sewing end position is reached. Then, the buzzer

sounds.It is also possible to move only the feed base by means of –/BACKWARD key

FORWARD key

❼.

❻ or +/

Be sure to turn the handwheel in the normal direction since the feed mechanism does not perform

the receding operation even when the handwheel is turned in the reverse direction.

⑥

The feed base is brought to its origin and the needle thread trimming operation is carried out by operating

the Start switch.

⑦ When the after-cut knife is selected, the cloth cutting knife is activated by operating the Start switch. ⑧ For the general thread trimming type machine, the bobbin thread trimming operation is carried out by

operating the Start switch.

The needle bar is brought to its origin and the cloth open mechanism is closed by operating the Start

⑨

switch.

To terminate sewing before it is completed, press Reset key ❷ to bring the feed base to the set

⑩

position.

Before starting the sewing machine, close the front cover.

(3) STEP mode (when the operation mode is set to "2")

After you have lowered the presser foot by operating the Presser foot switch, the sewing machine operates in

the same way as described in steps ① to ④ and ⑥ to ⑩ under (2) MANUAL mode. Only step ⑤ is different

from the MANUAL mode. In the MANUAL mode, the feed base travels stitch by stitch by turning the pulley

by hand. On the other hand, in the STEP mode, the following operation is carried out by operating the Start

switch.

⑤ The sewing machine carries out the normal sewing operation and stops at the sewing end.

Before starting the sewing machine, close the front cover.

– 49 –

Page 53

6-9. Changing procedure of the sewing pattern

❶

❹

❺

6-10. Conrming the pattern shape

If the Sewing LED stays ON, press the

Ready key ❶ to turn it OFF.

1) Press – key ❹ or + key ❺ to select the

pattern number B you want to sew. (The number

of pattern which is not registered is not displayed.)

2) Press READY key ❶ to light up sewing LED

A and to make it possible to sew. At this time, the

presser foot comes down and the feed base and

needle bar retrieve the respective origins.

The presser and the feed base operate.

Be careful that hands or ngers are not being

caught in them.

❷

1) Press READY key ❶ to light up sewing LED

A and to make it possible to sew. At this time, the

❶

presser foot comes down and the feed base and

needle bar retrieve the respective origins.

The presser and the feed base operate.

Be careful that hands or ngers are not being

❼

2) Operate the Presser foot switch to lower the presser

❻

caught in them.

foot.

3) When you press –/BACKWARD key ❻ or +/FORWARD key ❼, the feed travels stitch by stitch

until the sewing end is reached. When you keep the key held pressed, the feed continuously travels.

4) After you have conrmed the pattern shape, press Reset key

❷

to bring the feed to the material setting

position.

If the START switch is pressed during conrmation of the pattern shape, sewing starts from the

position where the switch is pressed. So, be careful.

Before starting the sewing machine, close the front cover.

– 50 –

Page 54

7. SETTING PROCEDURE OF THE SEWING DATA

In the case the sewing machine stops with its needle-bar rested in any position other than the upper

end when the READY key is pressed, Error (E030) will occur to stop the sewing machine.

In this case, turn the hand pulley to move the needle bar to its upper stop position. Error (E030)

will disappear when the upper stop position is reached. In this state, press the READY key again to light up sewing LED A .

In addition, the needle bar will automatically return to the upper stop position when you press the

READY key even in the case the needle bar is not brought to its upper stop position as long as the needle bar rests at any position between the upper stop position and a point short of the lower dead point.

For the standard sewing patterns No. 90 to No. 99, the sewing speed and the thread tension can be

changed. However, the pattern shape cannot be changed. To change the pattern shape, you have

to copy the pattern to a different pattern number.

Refer to "9-7. Copying the pattern data" p. 77 for the procedure.

If the Sewing LED stays ON, press the

❶

Ready key ❶ to turn it OFF.

❹

❺

❶

❹

❺

1) Press – key ❹ or + key ❺ to select the

pattern number B sewing data of which you want

to change. (Any number to which the pattern data

is not registered is not displayed.)

2) Press Data key 󱢵 to light up Data LED H.

󱢵

The LED displays the set value of data.

3) Press – key ❹ or + key ❺ to select the

data number B to display the set value C of data.

4) Press –/BACKWARD key ❻ or +/FORWARD

key ❼ to set a new set value C of data.

5) Press Ready key ❶ to light up Sewing LED

A. At this time, the sewing data is stored in memory.

At the same time, the presser foot comes down and

the feed base and needle bar retrieve the respective

origins.

❼

❻

󱢵

1. If you change the pattern number with-

out pressing Ready key

the aforementioned step 5), or turn the

power off, the set value you have input

will not be stored in memory.

2. The presser and the feed base operate.

Be careful that hands or ngers are not

being caught in them.

❶ in

6) Press Data key 󱢵 while Data LED H stays ON to return the screen to the normal display.

It is possible to prohibit the data setting from being changed in the aforementioned step 4) by setting

memory switch No. 16 "Data setting prohibition" to "1". Refer to "13. MEMORY SWITCH" p. 101 for

the procedure.

− 51 −

Page 55

＊ The data No. is stated in 2-digit LED B and the example of the set value is stated in 4-digit LED C as

shown below.

●

The setting range is stated in the respective sentences.

● Corrected stitches are represented by the stitch shape as observed from the right side of the material.

Wrong side

of stitching

7-1. Setting the knife No.

0 ... Decorative

buttonhole

1 to 6 ... Eyelet

buttonhole

No. a×b

1 2.1 × 3.2

2 2.5 × 3.8 3 2.9 × 4.4 4 3.0 × 4.6

5 3.2 × 5.4 6 2.7 × 5.1

❼

❻

Right side

of stitching

Set the knife No. of the same shape as that of the knife

mounted on the sewing machine.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

The No. can be set 0 to 6.

The number of the cloth cutting knife which

is provided as standard is "3". For optional

knives, refer to "11-4. Cloth cutting knife" p.

97.

7-2. Setting the cut length

Set the length to be cut with the knife.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

❼

❻

Length

1. When the cut length is changed, the number of stitches of the parallel section will automatically change.

2. When you set the cloth cutting length, it is necessary to set a value obtained by adding a sewing length to be extended to the length of the hammer used.

3. When sewing length is lengthened in case of taper bar length, compensation at the sewing end, etc., the setting range of the cut length is decreased as much as the length.

Example) Cut length ＋ (plus) taper bar length ≦ 38 mm (long thread trimming)

The cloth cutting length can be set in increments of 1

mm within the range given in the table below according

to the type of sewing machine.

Type of sew-

ing machine

J type

C type

Type of thread

trimmer

Needle thread

trimming type

General

thread trim-

ming type

Needle thread

trimming type

General

thread trim-

ming type

Eyelet button

hole setting

range

10 to 38mm 5 to 38mm

10 to 34mm 5 to 34mm

10 to 38mm 5 to 38mm

10 to 34mm 5 to 34mm

Lockstitch buttonhole setting

range

− 52 −

Page 56

7-3. Setting the cut-before/cut-after knives

Set whether the cut-before knife or the cut-after knife.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

❼

The knife can be set within the range given in the

table below.

Set value Cloth cutting knife operation

0 Without knife

1 Before-cut knife

After-cut knife

Disable

Before-cut

knife operates

❻

After-cut

knife operates

7-4. Setting the number of stitches of the parallel section

Set the number of stitches from the parallel section to

the bottom section of eyelet.

Set the knife number by means of –/BACKWARD key

❼

❻

Number of stitches

❻ or +/FORWARD key ❼.

The number of stitches can be set, according to the

cutting length, using any of the stitch lengths within the

range from 0.5 to 4 mm.

Example) In the case the cutting length is 21 mm, the

number of stitches that can be set is 5 to 39.

When the number of stitches is small, the

sewing speed is automatically reduced.

7-5. Setting the number of stitches of the eyelet

Set the number of stitches of the top section of eyelet.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

Number of stitches

❼

❻

The number of stitches can be set 3 to 20 stitches.

When the number of stitches is small, the

sewing speed is automatically reduced.

− 53 −

Page 57

7-6. Setting the cut space

Set the clearance where the knife drops in the parallel

section.

Set the knife number by means of –/BACKWARD key

Clearance

7-7. Setting the eyelet space

❻

❼

❻

❻ or +/FORWARD key ❼.

The space can be set –1.2 to 1.2 mm in the increments

of 0.1 mm.

Set the clearance where the knife drops in the eyelet

section.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.The space

can be set –1.2 to 1.2 mm in the increments of 0.1 mm.

Clearance

7-8. Knife position compensation

❼

–

❻

Correct the slip between the position of knife and

sewing position.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

Setting can be performed – 0.7 to 0.7 mm in the increments of 0.1 mm.

When the knife position in terms of the stitches is desired to be placed in the rear side, set “+” (plus) value, and in the front side, set “－” (minus) value.

− 54 −

Page 58

7-9. Number of stitches of sewing end compensation

Number of stitches of sewing end can be increased at

the same sewing pitch.

Set the knife number by means of –/BACKWARD key

❼

❻

−

7-10. Turning angle compensation

❼

❻ or +/FORWARD key ❼.

Without bartack .......–1 to 6 stitches

Taper bar Straight bar

Round bar

Round bar 2

.................–1 to 6 stitches

.............. –1 to 3 stitches

................–1 to the number of stitches of

round bar on the right side at the beginning of sewing

.............0 stitch

Turning angle of the eyelet section and of the parallel

section can be adjusted.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

Setting can be performed –14˚ to 14˚.

❻

−

7-11. Turning angle compensation at the parallel section

Turning angle of parallel section and bottom of eyelet

can be adjusted.

Set the knife number by means of –/BACKWARD key

❼

❻

−

❻ or +/FORWARD key ❼.

If the turning angle compensation is carried out the as

described in "7-10. Turning angle compensation", the

turning angle at the parallel section of a buttonhole will

be adjusted in such a way as to add this set value to

the compensation set in 7-10.

It is possible to set the angle compensation in the range

of "–14˚ ≤ turning angle compensation + turning angle

compensation at the parallel section ≤ 14˚".

− 55 −

Page 59

7-12. Compensation of eyelet in lateral direction

Position on the top of eyelet can be moved to the

right- or left-hand.

Set the knife number by means of –/BACKWARD key

❼

–

❻

❻ or +/FORWARD key ❼.

Setting can be performed –0.6 to 0.6 mm in the incre-

ments of 0.1 mm.

7-13. Compensation of eyelet in longitudinal direction

Shape on the top of eyelet can be expanded or con-

tracted in the longitudinal direction.

Set the knife number by means of –/BACKWARD key

❼

❻

❻ or +/FORWARD key ❼.

Setting can be performed –0.2 to 0.6 mm in the incre-

ments of 0.1 mm.

–

7-14. Compensation of eyelet, left in longitudinal direction

Length of the left side on the top of eyelet can be

adjusted.

Set the knife number by means of –/BACKWARD key

❼

❻

–

❻ or +/FORWARD key ❼.

Setting can be performed –0.2 to 0.6 mm in the incre-

ments of 0.1 mm.

− 56 −

Page 60

7-15. Compensation of left parallel section of a buttonhole

Length from the bottom of eyelet to the left side of

parallel section can be adjusted.

Set the knife number by means of –/BACKWARD key

Length

–

❼

❻

❻ or +/FORWARD key ❼.

Setting can be performed －0.6 to 0.6 mm in the in-

crements of 0.1 mm.

7-16. Compensation of cutting space, left

The clearance where the knife drops in the left side of

the parallel section can be compensated.

Set the knife number by means of –/BACKWARD key

❼

❻

Clearance

–

❻ or +/FORWARD key ❼.

Compensation is carried out in such a way as to add

this set value to the value of Data No.6 ”Cutting space

setting". If the setting is “＋”, the clearance becomes larger than that on the right side, and if it is “－”, the clearance

becomes smaller.

The cutting space, left can be set in increments of 0.1

mm within the range of "–1.2 ≤ cutting space + cutting

space left, compensation ≤ 1.2 mm".

7-17.

Setting the needle throwing width of the right bottom of eyelet

Needle throwing width of the right side of the bottom

of eyelet can be set.

Feed base is actuated with the needle throwing to

❼

❻

width

change the sewing width.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

It can be set in increments of 0.1 mm within the range

of 2.5 mm ± 1.0 mm.

− 57 −

Page 61

7-18.

Setting the needle throwing width of the left bottom of eyelet

Needle throwing width of the left side of the bottom of

eyelet can be set.

Feed base is actuated with the needle throwing to

❼

change the sewing width.

Set the knife number by means of –/BACKWARD key

❻

It can be set in increments of 0.1 mm within the range

of 2.5 mm ± 1.0 mm.

width

7-19. Setting the needle throwing width

Needle throwing widths at the parallel section and at

taper section of a buttonhole are set.

Feed base is actuated with the needle throwing to

❼

change the sewing width.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

width

7-20. Setting the type of bartack

0 1 2 3 4

Type

Shape

With-

bartack

out

Taper

bar

Straight

bar

Round

bar

Round

bar 2

❻

❼

❻ or +/FORWARD key ❼.

It can be set in increments of 0.1 mm within the range

of 2.5 mm ± 1.0 mm.

To change the stitch bite width for the nor-

mal use of the sewing machine, adjust the

sewing machine referring to "8-2. Adjusting

the stitch bite width" p. 66. To change the

stitch bite width temporarily, change the set value.

In this step of procedure, the type of bartack is to be set.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

The type of bartack can be set within the range from

0 to 4 as shown in the table below.

Set value Type of bartack

0 Without bartack 1 Taper bar 2 Straight bar 3 Round bar 4 Round bar 2

S : Starting position of sewing

− 58 −

Page 62

7-21. Setting the length of taper bar

Set the length of taper bar.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

❼

❻

Length

The taper bar length can be set in increments of 1 mm

in the range from 3 to 15 mm.

7-22. Setting the number of stitches of taper bar

Set the number of stitches of taper bar.

Set the knife number by means of –/BACKWARD key

❼

❻

Number of stitches

7-23. Setting the offset of taper bar

❼

❻ or +/FORWARD key ❼.

The number of stitches can be set according to the

taper bar length using the range of stitch length from

0.5 to 4 mm.

Example) When the taper bar length is 6 mm, the

number of stitches can be set in the range

from two to 12.

When the number of stitches is small, the

sewing speed is automatically reduced.

Set the offset amount from the center of taper bar.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

The offset amount can be set 0.5 mm to 2.0 mm in the

increments of 0.1 mm.

Offset amount

❻

− 59 −

Page 63

7-24. Setting the number of stitches of slant section of taper bar

Number of stitches of the slant section from the taper bar

to the parallel section can be set.

Set the knife number by means of –/BACKWARD key

❼

❻

Number of stitches

❻ or +/FORWARD key ❼.

The number of stitches can be set in the range from

two to (the number of stitches of taper bar).

7-25. Compensation of the number of stitches of the right side taper bar

Number of stitches of the right side taper bar can be

decreased and the overlapping section can be made

less.

❼

❻

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

The number of stitches can be set in the range from –

(the number of stitches of taper bar) to 0 (zero).

Number of stitches

7-26. Setting the straight bar length

In this step of procedure, the length of straight bar is

to be set.

Set the knife number by means of –/BACKWARD key

❼

The straight bar length can be set in increments of 0.1

❻

Length

mm in the range from 2.0 to 10.0 mm.

The straight bar length should be set so that

❻ or +/FORWARD key ❼.

the throat plate and the eyelet presser sup-

port plate do not interfere with each other, in

consideration of the position of the presser

plate when the cloth opening mechanism is

opened.

− 60 −

Page 64

7-27. Setting the number of stitches of straight bar

In this step of procedure, the number of stitches of

straight bar is to be set.

Set the knife number by means of –/BACKWARD key

❼

❻ or +/FORWARD key ❼.

The number of stitches can be set according to the

❻

straight bar length using the stitch length within the

range from 0.5 to 4 mm.

Example) When the straight bar length is 5 mm, the

number of stitches can be set in the range

from three to 11 stitches.

When the number of stitches is small, the

sewing speed is automatically reduced.

Number of stitches

7-28. Setting the overlapping amount of straight bar

In this step of procedure, the overlapping amount be-

tween the straight bar and parallel section is to be set.

Set the knife number by means of –/BACKWARD key

❼

❻ or +/FORWARD key ❼.

The straight bar length can be set in increments of 0.1

❻

Overlapping

amount

mm in the range from 0.0 to 2.0 mm.

The cutting length should be set to a value

which is equal to or more than the length

that is obtained by adding the overlapping

length to the length of the hammer used.

7-29. Setting the needle throwing width of straight bar

In this step of procedure, the needle throwing width of

the straight bar is to be set.

Change the stitch width by operating the feed base

❼

❻

along with the needle throwing operation.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

The needle throwing width can be set in increments of

0.1 mm within the range of 2.5 ± 1.0 mm.

Needle throwing width

− 61 −

Page 65

7-30. Setting the number of stitches of round bar

The number of stitches of the round bar is set.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

❼

❻

The number of stitches can be set 4 to 20 stitches.

In the case the round bar is selected for the

type of bartack, the number of overlapping

stitches at the beginning and end of sewing

can be set using Data No. 9 "Compensation

of the number of stitches at the end of sew-

ing."

Number of stitches

When the number of stitches is small, the

sewing speed is automatically reduced.

7-31. Setting the number of overlapping stitches of round bar 2

In this step of procedure, the number of overlapping

stitches of the round bar 2 at the beginning and end

of sewing is to be set.

❼

❻

Number of stitches

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

The number of stitches can be set 1 to 10 stitches.

7-32. Setting the needle throwing width of the round bar

The needle throwing width of the round bar is set.

Change the stitch width by operating the feed base

along with the needle throwing operation.

❼

❻

Needle throwing width

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

The needle throwing width can be set in the range of

2.5 ± 1.0 mm in increments of 0.1 mm.

− 62 −

Page 66

7-33. Setting the needle throwing width at the upper section of

eyelet bar

The needle throwing width at the upper section of

eyelet bar is set.

Change the stitch width by operating the feed base

along with the needle throwing operation.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

The needle throwing width can be set in the range of

2.5 ± 1.0 mm in increments of 0.1 mm.

width

❼

❻

7-34. Setting the reduced sewing speed for straight/round bar

The reduced sewing speed is set, which is used as

a target of speed reduction when you want to reduce

the sewing speed for straight/round bar.

❼

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

❻

The speed reduction can be set in increments of 100

sti/min within the range from –600 to 0 sti/min.

7-35. Setting the sewing speed

Set the sewing speed of the whole sewing.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

❼

❻

The sewing speed can be set 400 sti/min to 2,500 sti/

min in the increments of 100 sti/min.

7-36. Setting the reduction speed of eyelet

Set the reduction speed when the sewing speed of eyelet

section is desired to be reduced.

Set the knife number by means of –/BACKWARD key

❼

❻

❻ or +/FORWARD key ❼.

The speed can be set –600 sti/min to 0 sti/min in the

increments of 100 sti/min.

− 63 −

Page 67

7-37. Setting the soft start

Sewing speed at the sewing start can be limited.

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

❼

❻

Sewing speed per rotation can be set with memory switches Nos. 02 to 07. Refer to "13. MEMORY

SWITCH" p. 101 for the procedure.

All machines have been delivered with the speed set to 600 sti/min.

The soft start can be set in the range from 0 (zero) to

six revolutions.

* Two rotations of the inner needle and outer needle

correspond to one stitch.

7-38.

7-39.

Setting the number of stitches at the beginning of sewing of thread tension

It is possible to set the number of stitches at the

beginning of sewing at the time of setting the needle

thread tension.

❼

❻

Set the knife number by means of –/BACKWARD key

❻ or +/FORWARD key ❼.

The number of stitches can be set in the range from 0

(zero) to three stitches.

Setting the number of stitches at the end of sewing of thread tension

It is possible to set the number of stitches at the end of

sewing at the time of setting the needle thread tension.

Set the knife number by means of –/BACKWARD key

❼

❻

❻ or +/FORWARD key ❼.

The number of stitches can be set in the range from 0

(zero) to three stitches.

− 64 −

Page 68

8. ADJUSTMENT OF EACH PART

8-1. Adjusting the pressure of the cloth trimming knife

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine.

2. To avoid unexpected personal injuries, keep away from the looper thread trimming knife and cloth trimming knife during the adjustment procedure.

* The pressure of the cloth trimming knife can be changed. * Normally, the cloth trimming knife is able to cut the material with its standard pressure. However,

the pressure may be inadequate for some sewing materials and sewing conditions. In this case, the air pressure can be set to 0.4 MPa at the maximum. Adjust the pressure to any value below the maximum pressure.

* Air pressure has to be changed after the hammer surface and condition and mating surface of

the knife blades have been properly adjusted and carefully checked.

* The pressure value should be gradually increased from the lower value while checking whether

the knife cuts the material with each pressure value.

■ Adjusting the knife pressure

The pressure of the cloth trimming knife is adjusted

by the air pressure of the regulator for adjusting the

cloth cutting knife pressure.

The standard pressure has been factory-set at 0.35

MPa.

Set the knife pressure as low as possible

in order to maintain durability of the knife

blades and the hammer.

Excessively high pressure can cause a

chipped or nicked edge of the knife blade.

Adjust the pressure to any value below the

maximum pressure (0.4 MPa).

− 65 −

Page 69

8-2. Adjusting the stitch bite width

WARNING :

Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

❶

Standard of stitch bite amount (mm)

Needle rocking width

2.0 to 4.0 mm

❷

Center of rod

❷

To aligned

Lowest

position

Rocking amount

small

2.5

3.5

Rocking amount

large

1) Open needle rocking adjustment cover ❶.

2) Turn the handwheel to bring the needle bar to its

lowest position.

3) Loosen fulcrum shaft ❷ of rocking link B.

• Moving the rocking link B in the direction A increas-

es the stitch bite width.

• Moving the rocking link B in the direction B decreas-

es the stitch bite width.

4) When the stitch bite width is determined, x fulcrum

shaft ❷ of rocking link B and close the needle

rocking adjustment cover.

5) After adjusting the stitch bite width in the aforemen-

tioned steps, check the respective items of "10-2.

Timing between the needle and the looper" p.

79, "10-5. Clearance between the needle and

the looper" p. 84 and "10-7. Clearance between

the spreader and looper and the opening timing

of the spreader" p. 85.

The engraved marker dot is a standard. Make

sure of the amount by putting the needle tip

marks on a sheet of paper or the like for the

precise measurement.

− 66 −

Page 70

8-3. Adjusting the presser

WARNING :

Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

❶

■ Adjusting the height of the presser

1) Remove auxiliary presser plate cover ❶.

2) Loosen screw ❷ and adjust the height of the press-

er.

❷

The standard presser foot height A is 13 mm.

− 67 −

Page 71

8-4. Adjusting the presser opening amount

■ How to check the cloth opening amount

1) Turn the power ON. Press the READY key

to light up the sewing LED.

2) Press the knife ON/OFF key

LED to disable the cloth trimming knife.

3) Press the presser switch and press the +/FORWARD

key

the feed base moves to the sewing start position

and stops there.

❹

❸

❶

to turn off the

. Then, the cloth opener is opened and

❷

❹

The standard adjustment value when the

cloth opener is opened is "A = 2.3 mm".

4) Press the RESET key . Then, the presser foot

goes up and the cloth opener is closed to return

to its origin.

1. The standard adjustment value of the cloth opening amount when the cloth opener is closed is "B = 3 mm". As a result, the standard cloth opening amount is obtained by the formula shown below: B - A = 0.7 mm

2. In the case the cut-before knife is used for sewing, in particular, the cloth opening amount should be adjusted accord-

ing to the material to be sewn.

■ Adjustment procedure

[Adjustment of dimension A]

Insert a screwdriver from ❶ to loosen the screw. Dimension A can be adjusted by inserting the screwdriver

into hole ❷ and turning the screw placed at the bottom of the hole. Turning the screwdriver clockwise will

decrease dimension A, or counterclockwise will increase it.

[Adjustment of dimension B]

Insert a screwdriver from ❸ to loosen the screw. Dimension B can be adjusted by inserting the screwdriver

into hole ❹ and turning the screw placed at the bottom of the hole.

Turning the screwdriver clockwise will decrease dimension B, or counterclockwise will increase it.

WARNING :

The conrmation of cloth open amount can be performed by actually cutting cloth in the manual

mode. However, the cloth cutting knife works. So, be careful.

1. In the following cases, set the adjustment value A of the cloth opening amount when the cloth opener is opened to the standard value or less. At this time, take care to prevent interference between the related parts. * In the case the straight bartacking length is set to more than 6 mm; * In the case the throat plate is lifted above the standard position and the straight bartacking

length is set to longer than 5.5 mm;

* In the case the total of the cloth cutting space, correction value of cutting space, left, and

correction value of needle throwing width exceeds 1.1 mm;

* In the case the throat plate is lifted above the standard position and the total of the cloth

cutting space, correction value of cutting space, left, and correction value of needle throwing width exceeds 0.9 mm.

2. When sewing is performed using the cut-before knife, the standard cloth opening amount may be insufcient. Adjust the cloth opening amount according to the material to be sewn so that it is opened sufciently.

− 68 −

Page 72

8-5. Adjusting the needle thread drawing amount

WARNING :

Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

■ Adjusting the drawing amount of the needle

thread at the sewing start

Carry out the adjustment with the air supplied. Loosen screw ❷ and move thread drawing arm ❶

❶

❷

in direction A or B to adjust the drawing amount of

the needle thread.

For the standard adjustment value, dimension C is

18 mm (or 23 mm if the machine is provided with

the needle thread clamp unit).

8-6. Adjusting the thread take-up thread guide

WARNING :

Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

❸

❶

❷

Loosen screw ❷. Move thread take-up thread guide ❸ mounted on thread take-up thread guide mounting

base ❶ up and down to adjust its installing position.

For the standard adjustment, dimension A is 15.5 mm.

− 69 −

Page 73

8-7. Adjusting the remaining amount of the gimp

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine.

2. To avoid unexpected personal injuries, keep away from the looper thread trimming knife and cloth trimming knife during the adjustment procedure

❷

❶

❸

1) Loosen setscrew ❶. Move gimp thread guide ❷ to and fro to adjust remaining amount A of the gimp at the

end of sewing.

2) Adjust the remaining amount of the gimp, while actually sew the remainder of the material to check the

adjustment result.

There is a case where the remaining amount of gimp is not stable when sewing thread or the like

is used for the gimp. In this case, insert the gimp in the gimp presser plate ❸.

8-8. Adjusting the gimp thread tension

Loosen nut ❶ and carry out adjustment. The standard adjustment value is 11.5 mm. When double nut ❶ is tightened, the gimp tension becomes higher and the length of remaining thread at the time of looper thread trimming becomes shorter.

1. For a light-weight material or elastic

material, lower the gimp tension than

11.5 mm

❶

the standard adjustment.

2. When gimp thread tension is excessively

low or high, there is a case where the

length of remaining gimp becomes un-

stable. The standard adjustment value is

11.5 mm.

− 70 −

Page 74

8-9. Needle thread clamp unit (optional)

WARNING :

Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

When the clamp of the needle thread clamp unit is in

❶

❷

the lower position, standard height A of the underside of the clamp from the top surface of presser support plate ❷ is 6 mm. When using a heavy-weight material or the like, the clamp may come in contact with the material. In this case, loosen screw ❶ and adjust the clearance between the underside of the clamp in its lower position and the material to 2 to 3 mm.

When you have adjusted the height, check

In the case the sewing machine is installed with the needle thread clamp unit, the position of the needle thread drawing arm will be different from its position without the unit. Dimension C described in "8-5. Adjusting the needle

thread drawing amount" p. 69 is 23 mm.

(Standard dimension C is 18 mm for the sewing machine which is not provided with the needle thread clamp unit.) The length of the needle thread remaining on the needle can be adjusted by setting it on the operation panel. It is adjusted by setting the needle thread tension.

Referring to "9-1. Operating procedure of thread

tension compensation of each section" p. 73 for

the setting procedure, call Compensation Position No. 54 on the display.

When the set value (initial value: 0) is increased to a

positive value, the more the number is increased, the shorter the remaining thread will become. When the set value is decreased to a negative value, on the contrary, the length of thread remaining on the needle is increased. The setting can be separately done on a pattern-by-pattern basis.

to make sure that the clearance D provided

between the top end of the clamp and the

screw of the needle bar thread guide is 1.5

to 2 mm.

The thread tension controller for the needle thread clamp unit works to prevent the thread from loosening at the end of sewing. Turn the tension regulating knob to adjust distance B to 15 to 16 mm.

− 71 −

Page 75

8-10. Adjusting the brightness of the hand lamp

The brightness of the hand lamp can be adjusted on

the operation panel.

1) Select the memory switch operation mode.

Refer to "13. MEMORY SWITCH" p. 101 for how

to operate the memory switch operation mode.

2) Press – key ❹ or + key ❺ to display mem-

ory switch No. 30.

3) Press BACK key ❻ or FORWARD key ❼ to change the set value.

Hand lamp

❶

❺

❹

The brightness can be set to one of 20 steps from 0

(total extinction) to 100 (maximum). The brightness

has been factory-set to 100 (maximum) at the time

of shipment.

After the completion of the adjustment of brightness

to an appropriate value, press READY key

❶ to conrm the setting. Then, exit the memory

❼

switch operation mode.

❻

− 72 −

Page 76

9. HOW TO USE THE VARIOUS FUNCTIONS

Refer to "13. MEMORY SWITCH" p. 101 for how to set the memory switches described below.

9-1.

Operating procedure of thread tension compensation of each section

Thread tension of each section of the sewing shape can be individually changed. The thread tension applied to each section of a buttonhole is the value obtained by adding the respective compensated values to the needle thread tension set value (No. 40).

1) Press Thread tension key ❽ to light up

❶

❺

❹

❽

❼

❻

Thread tension LED D. The LED displays the thread

tension set value.

2) Press – key ❹ or + key ❺ to select the

compensation position number B of each tension.

(Refer to Appendixes 1 and 2 for the compensation

position numbers.)

3) After the selection of the compensation position

number B, press –/BACKWARD key ❻ or

FORWARD key

❼ to input a thread tension

compensation value C.

4) The compensation value you have input is stored in memory by pressing Ready key ❶ or by oper-

ating the Start switch to start sewing.

5) When you press Thread tension key ❽ while Thread tension LED D stays ON, the screen returns to

the normal display.

When you change the pattern number or turn the power OFF without carrying out the operation

described in 4), the set value will not be stored in memory.

For the compensation position No., refer to tables 1 and 2 and Figs. 1 and 4.

[ Setting of needle thread tension ]

Compensation

position No.

40 Needle thread tension Needle thread tension value 41 Compensation of needle thread tension of right parallel

section

42 Compensation of needle thread tension of left parallel

section 43 Compensation of needle thread tension of top eyelet Compensation value of thread tension of top eyelet 44 Compensation of needle thread tension of right bottom

of eyelet 45 Compensation of needle thread tension of left bottom

of eyelet 46 Compensation of needle thread tension at bartack, right Refer to Table 2 "Correspondence of needle thread

47 Compensation of needle thread tension at bartack, left Refer to Table 2 "Correspondence of needle thread

48 Compensation of needle thread tension at bartack, right 2 Refer to Table 2 "Correspondence of needle thread

49 Compensation of needle thread tension at bartack, left 2 Refer to Table 2 "Correspondence of needle thread

Setting item Description

Compensation value of needle thread tension of right side of parallel section Compensation value of needle thread tension of left side of parallel section

Compensation value of needle thread tension of right bottom of eyelet Compensation value of needle thread tension of left bottom of eyelet

tension to each type of bartack"

Table1

− 73 −

Page 77

Compensation

position No.

52 Compensation of needle thread tension at the time of

53 Compensation of needle thread tension at the time of stop Compensation value of needle thread tension at the

54 (When the needle thread clamp unit is selected as an

Compensation of needle thread tension of sewing start

Compensation of needle thread tension of sewing end

thread trimming

option)

Compensation of needle thread tension for drawing

needle thread clamped by the needle thread clamp unit.

Setting item Description

Compensation value of needle thread tension of sewing start Compensation value of needle thread tension of sewing end Compensation value of needle thread tension at the time of thread trimming of sewing machine ＊1

time of stop of sewing machine ＊2 Compensation value of the needle thread tension for drawing the needle thread after the needle thread clamp unit has clamped the needle thread ＊3

＊1 : Compensation value as against memory switch No. 8 (needle thread tension at the time of thread trimming)

(When the needle thread clamp unit is selected as an option) Compensation value for memory switch No. 33 (needle thread tension for trimming clamped needle thread)

＊2 : Compensation value as against memory switch No. 10 (needle thread tension at the time of stop) ＊3 : Compensation value for memory switch No. 34 (needle thread tension for drawing clamped needle thread)

[Correspondence of needle thread tension to each type of bartack]

Type of bartack

Compensating position

Compensation of needle thread

tension at bartack, right Compensation of needle thread

tension at bartack, left Compensation of needle thread

tension at bartack, right 2 Compensation of needle thread

tension at bartack, left 2

Taper bar Straight bar Round bar Round bar 2

Right side of parallel

section Left side of parallel section

Right side of linear

slant section Left

side of linear

slant section

Whole

Parallel section

→ Straight bar

- - -

1. The actual thread tension varies in accordance with the kind or thickness of thread used even when the set value of thread tension is the same. Especially, in case of thread of which the surface is hard to slide, the thread tension becomes higher, and even when the set value is as low as 60 to 70, the loop becomes smaller. As a result, stitch skipping may be caused. When using plural threads, it is recommended to make a sewing pattern to which set values of thread tension suitable for the respective threads have been inputted.

2. When the needle thread tension (No. 52) at the end of sewing is set to a high value, stitch skipping at the end of sewing or failure of needle thread take-up may occur.

[Compensation position of taper bar]

At the beginning of sewing At the end of sewing

- -

Table2

Overlapping section at the beginning of sewing

Whole

Fig. 1

Data No. 45 Compensation of needle thread tension of left bottom of eyelet

Data No. 42 Compensation of needle thread tension of left parallel section

Data No. 49

Data No. 47

Compensation of needle thread

tension at bartack, left 2

Compensation of needle thread

tension at bartack, left

− 74 −

Data No. 43 Compensation of needle thread tension of top eyelet

Data No. 44 Compensation of needle thread tension of right bottom of eyelet

Data No. 41 Compensation of needle thread tension of right parallel section

Data No. 48

Data No. 46

Compensation of needle thread

tension at bartack, right 2

Compensation of needle thread

tension at bartack, right

Page 78

[Compensation position of straight bar]

Fig. 2

Data No. 43 Compensation of needle thread tension of top eyelet

Data No. 45 Compensation of needle thread tension of left bottom of eyelet

Data No. 42 Compensation of needle thread tension of left parallel section

Data No. 48

(One stitch from the parallel section to the

linear bartack section))

Compensation of needle thread

tension at bartack, right 2

[Compensation position of round bar]

Data No. 45 Compensation of needle thread tension of left bottom of eyelet

Data No. 44 Compensation of needle thread tension of right bottom of eyelet

Data No. 41 Compensation of needle thread tension of right parallel section

Data No. 46

Compensation of needle thread

tension at bartack, right

Data No. 43 Compensation of needle thread tension of top eyelet

Data No. 44 Compensation of needle thread tension of right bottom of eyelet

Fig. 3

Data No. 42 Compensation of needle thread tension of left parallel section

Data No. 47

Compensation of needle thread

tension at bartack, left

[Compensation position of round bar 2]

Data No. 45 Compensation of needle thread

tension of left bottom of eyelet

Data No. 42 Compensation of needle

thread tension of left parallel

section

Data No. 41 Compensation of needle thread tension of right parallel section

Data No. 46

Compensation of needle thread

tension at bartack, right

Data No. 43 Compensation of needle thread tension of top eyelet

Data No. 44 Compensation of needle thread tension of right bottom of eyelet

Data No. 41 Compensation of needle thread tension of right parallel section

Data No. 46

Compensation of needle

thread tension at bartack,

right

Fig. 4

Data No. 47

Compensation of needle thread

tension at bartack, left

− 75 −

Page 79

9-2. Changing the setting position of cloth

The setting position of the material can be changed to the front side or the sewing start position in the case of cut-after knife/without knife.

(1) To set the material setting position at the front side for every type of knife setting, i.e., cut-before knife/

cut-after knife/without knife.

1) Set memory switch No. 12 to “1”.

Set the travel amount to this side using Memory switch No. 23. (Factory-set to 22 mm as standard at the time of shipment)

(2) To set the material setting position at the origin in the case of the cut-before knife, and at the sewing start

position in the case of the cut-after knife/without knife.

1) Set memory switch No. 12 to “2”. (3) To set the material setting position at the front side in the case of the cut-before knife, and at the sewing

start position in the case of the cut-after knife/without knife.

1) Set memory switch No. 12 to “3”.

Set the travel amount to this side using Memory switch No. 23. (Factory-set to 22 mm as standard at the time of shipment)

9-3. Changing over the mode of the start switch

The presser comes down by the operation of the start switch only, and the sewing is continually performed. Set memory switch No. 15 to “1”.

It is also possible to perform the normal use by lowering the presser with the presser switch and

performing sewing with the start switch. However, the presser LED of the hand switch is always put in the state of ashing on and off.

9-4. Changing over the presser movement

It is possible that the presser returns to the set position while it is held lowered after completion of sewing. (The presser returns to the set position while it is raised after completion of sewing in the standard state of delivery.)

1) Set Memory switch No. 20 to "1" or "2".

❶ The presser foot goes up after the feed base returns to the material setting position when Memory switch

No. 20 is set to "1".

❷ The presser foot is lifted by means of the Presser foot switch after the feed base returns to the material

setting position when Memory switch No. 20 is set to "2".

2) The presser foot is kept lowered also when the feed base is brought back to the material setting position

by means of the Reset key in such a case sewing is stopped before the end of sewing is reached by means of the Temporary stop switch.

9-5. Changing over the counter (DOWN counting)

Set the count value and perform DOWN counting. It is possible to prohibit the start at the count value “0”.

■ Change-over to DOWN counter

1) Set memory switch No. 13 to 2.

2) When the count value reaches "0", the display ashes on and off and the Presser foot switch and the Start

switch are disabled.

3) Press RESET key and the count value returns to the initial value. (State of standard delivery : initial value = 100)

In order to perform the start even when the count value becomes “0”, set memory switch No. 14 to “0”.

■ Setting the initial value of DOWN counter

It is necessary to set the initial value starting “Count DOWN” when using DOWN counter.

1) Press COUNTER key

to display the counter.

2) Press RESET key to return the count value to the initial value.The initial value has been set to 100 in

the state of standard delivery.

3) Set the count value by means of the –/BACKWARD key or +/FORWARD key .

9-6. Changing over to the mode of the stop before cloth cut

The sewing can be temporarily stopped before performing the cloth cutting operation at the time of the pattern sewing of cut-after knife data.

1) Set memory switch No. 21 to “1”. The sewing machine once stops after sewing and cloth cutting operation is performed by again pressing the start switch.

It is also possible to return the sewing machine to the cloth set position without performing cloth cutting

operation by pressing RESET key .

− 76 −

Page 80

9-7. Copying the pattern data

In this step of procedure, the pattern data is to be copied.

❶

❺

❹

❸

Step of operation

described in 2)

❸

❼

❻

❼

❻

If the Sewing LED stays ON, press the

Ready key ❶ to turn it OFF.

1) Press Mode key ❸ to display the mode setting

screen.

Press –/BACKWARD key ❻ or +/FOR-

WARD key

❼ to display "CoPy".

2) Press Ready key ❶ to display the pattern

data copying screen.

3) Press – key ❹ or + key ❺ to select the

source pattern number to be copied which is dis-

played on the 2-digit LED B.

(The number for which no pattern is registered is

not displayed.)

4) Press –/BACKWARD key ❻ or +/FORWARD key ❼ to select the destination

pattern number of copying which is displayed on

the 4-digit LED C.

Indication ① is displayed when the destination pat-

tern data is not registered, or ② is displayed when

it is registered. Pattern number can be set at "1" to

"89".

In the case the destination pattern data is

②

registered

At the time of conrming the overwrite

③

❷

❶

5) Press Ready key ❶ to copy the pattern data

from the source to the destination.

If you press Mode key ❸, the pattern data

copying is cancelled.

6) When you press Ready key ❶ when the

destination pattern number is present, conrmation

screen ③ is displayed. When you press Ready key

❶, the present data is overwritten. If you

press Reset key

❷, the overwrite is cancelled.

7) Press Mode key ❸ while "CoPy" is displayed

to return the screen to the normal display.

Pattern numbers 90 to 99 cannot be over-

written since they are standard patterns.

− 77 −

Page 81

9-8. Deleting the pattern data

In this step of procedure, the pattern data is to be deleted.

❶

❸

Step of operation

described in 2)

❸

❼

❻

❼

❻

If the Sewing LED stays ON, press the

Ready key ❶ to turn it OFF.

1) Press Mode key ❸ to display the mode setting

screen. Press –/BACKWARD key

FORWARD key

❼ to display "dEL".

❻ or +/

2) Press Ready key ❶ to display the pattern

data deletion screen.

3) Press –/BACKWARD key ❻ or +/FOR-

WARD key

❼ to select the pattern number

to be deleted which is displayed on the 4-digit LED

C. (The number for which no pattern is registered

is not displayed.)

4) When you press Ready key ❶, the conrmation screen ① is displayed.

If you press Mode key ❸, the pattern data

deletion is cancelled.

5) When you press Ready key ❶, the pattern

At the time of conrming the deletion

①

❷

❶

data is deleted. If you press Reset key

❷, the

pattern data deletion is cancelled.

6) Press Mode key ❸ while "dEL" is displayed

to return the screen to the normal display.

Pattern numbers 90 to 99 cannot be over-

written since they are standard patterns.

− 78 −

Page 82

10. MAINTENANCE

10-1. Looper thread trimming (overall thread trimmer type)

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

The looper trimming knife does not require re-adjust-

ment when the sewing specications are changed.

However, the height of the looper trimming knife position has to be adjusted in the case the knife fails to catch and trim the looper thread after replacement of the knife.

1) To adjust the knife height, loosen screw ❶ and

the nut located on the underside of the screw and

❶

2) Once the knife is positioned correctly, x the knife by tightening screw ❶ and nut.

change the height of screw ❶ and nut appropriately.

* If the knife trims the gimp but fails to trim the looper

thread, the knife position is too high. Move screw ❶ and nut in direction A to decrease the knife height.

* If the knife trims the looper thread but fails to trim

the gimp, the knife position is too low. Move screw ❶ and nut in direction B to increase the knife height.

Whenever the knife height is changed, check to be sure that it does not interfere with other com-

ponents such as the presser plate while the sewing machine is in operation.

10-2. Timing between the needle and the looper

DANGER :

Be sure carry out the work while observing the following in order to protect against pinching of

hands, ngers and arms between the sewing machine and the bottom cover, which can result in serious injury, when you raise the sewing machine from its home position.

• Be sure to lock the hinge stopper to rmly secure the sewing machine in its raised position.

* Read and check "3-6. Raising and returning the sewing machine" p. 16.

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

To adjust the looper cam, raise the machine head.

(Refer to "3-6. Raising and returning the sewing

machine" p. 16 for how to raise the machine head.)

Remove screws ❶ to remove looper cover ❷. Then,

carry out the adjustment.

After the completion of the work, attach the looper

cover.

❷

❶

− 79 −

Page 83

To adjust the timing between the needle and the looper, adjust the needle throwing width and check

the needle bar height in advance.

The inside needle means the innermost needle entry and the outside needle means the outermost

needle entry of the needle throwing width employed for sewing an eyelet buttonhole.

1) Loosen two setscrew ❻ in the looper driving cam.

❸

Bring the needle bar to the lower dead point of the inside needle. Turn looper driving cam ❸ by hand so that the at plane of looper driving cam ❸ faces

to the lower left at 45° to horizontal, and temporarily

45°

❻

tighten looper driving cam setscrew ❻.

When turning looper driving cam ❸, take

care not to allow the hook driving shaft to

turn together.

2) Loosen setscrew ❺ in the looper driving shaft guide. Move looper driving shaft guide ❹ up and down to adjust so that clearance B provided between the

Needle (lower dead point of inside needle)

needle and the right looper and clearance A be-

tween the needle and the left looper are made to be

equal in both cases when the needle bar is brought

A=B

to the lower dead point of the outside needle and

when the needle bar is brought to the lower dead

point of the inside needle. Then, tighten setscrew ❺.

Needle (lower dead point of outside needle)

❹

Take care not to damage or deform needle

thread trimming spring ❻.

❺

❻

− 80 −

Page 84

Direction A :

Timing advances.

Direction B : Timing retards.

No clearance is

provided

Needle outside

Stitch bite width : small

3 mm

Needle inside

Rear

❻

3 mm

❸

Pressed against the

part located behind

Front

Stitch bite width : large

3) Adjust with looper driving cam ❸, so that the blade

point of the left looper is aligned with the center of

the needle when the needle bar goes up 3 mm from

the lower dead point of the inside needle. Then, x

the looper driving cam by tightening two setscrews ❻ with driving cam ❸ pressed against the part

located behind it.

If stitch skipping due to the loop bending

caused by faulty scooping of thread by the

looper occurs when the needle throwing

width is 2 mm or less, shift the looper driv-

ing cam in direction A to change the looper

timing so that the left looper blade point is

located at the center of the needle when the

needle bar goes up from the inside lower

dead point by 2.7 to 2.8 mm.

4) Similarly, check the position of the needle and that

of the blade point of the looper when the needle

bar goes up 3 mm from the lower dead point of

the outside needle. The blade point is positioned

approximately in the range of the left side of the

needle. When it is outside the range, check again

steps 2) and 3).

After performing the looper timing adjust-

ment, when the stitch bite width is changed in case of ① to ③ described below, perform

steps 1) to 4) whenever the case occurs.

① When the stitch bite width in terms of

that at the time of looper timing adjust-

ment is changed more than ±0.3 mm.

Even when the change of the stitch bite

width is within ±0.3 mm :

② When the stitch bite width is more than

3.4 mm.

③ When sewing heavy-weight materials or

overlapped section where needle is apt

to be bent.

− 81 −

Page 85

10-3. Height of the needle bar

(1) Adjusting the needle bar height

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

❶

2.5 mm

Loosen screw ❶ and adjust the height of the needle bar so that the top of the needle eyelet is spaced 2.5 mm

from the blade point of the looper when the needle bar ascends 3 mm from its inside lower dead point and the

needle and left looper are positioned at the inside needle scooping position.

(2) Reference height of the needle bar

For the needle bar height, take dimension A from the

❷

❶

top end of the needle bar ❷ to the top surface of needle bar cover ❶ shown in the left gure as reference.

Dimension A at each point

Lower dead point of needle bar... 42.5 mm

(when the looper timing is 3 mm)

Looper scooping timing ... 39.5 mm

(when the looper timing is 3 mm)

Carry out the adjustment after the com-

pletion of adjustment described in "10-2.

Timing between the needle and the looper"

p. 79.

− 82 −

Page 86

10-4. Adjustment to prevent triangular stitch skipping in the

case of a narrow needle throwing width

For sewing with the narrow needle throwing width of

Spreader, left

Outer needle

Stitch skips when the

thread enters here

Needle thread

Throat plate

Looper thread

triangle (C)

Looper thread

2 mm or less, the outer needle enters the left side of

the looper thread triangle (C section) when the outer

needle comes down during sewing in the standard

adjustment state. This can cause stitch skipping.

In this case, carry out the following adjustment after

the completion of the adjustment described in "10-2.

Timing between the needle and the looper" p. 79

and "10-3. (1) Adjusting the needle bar height" p.

82 completed.

Inner needle

(lower dead point of inside needle)

(lower dead point of outside needle)

Looper, left

Needle

1) Turn the hand pulley by hand when the looper

thread is hooked on the looper to lower the outer

needle.

2) Loosen setscrew ❶ in the looper driving shaft guide. Move looper driving shaft guide ❷ upward to adjust

so that the outer needle enters the looper thread

triangle (C section) when the needle intersects the

looper, left; i.e., A is larger than B (A > B).

A guide of adjustment

When the looper timing is 2.7 mm:

Values A and B A = Approx. 4 mm B = Approx. 3 mm

3) Determine the position of looper driving shaft guide ❷ so that clearance d provided between the outer

needle and the looper thread is minimized. Then,

x the looper driving shaft guide with setscrew ❶.

❷

❶

❸

Take care not to damage or deform needle

thread trimming spring ❸.

Even when the outer needle enters the loop-

er thread triangle (C section) by turning the

hand pulley by hand, the needle sometimes

enters outside the C section resulting in

stitch skipping during sewing. If stitch skip-

ping occurs, adjust dimension d as small as

possible so that the outer thread enters C

section during sewing.

− 83 −

Page 87

10-5. Clearance between the needle and the looper

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

The standard adjustment value of the clearance be-

❶

❷

0.03 to 0.05 mm

tween the needle and the looper is 0.03 to 0.05 mm. Loosen looper setscrew ❶ and adjust the clearance between needle ❷ and left looper ❸, and between the needle and right looper ❹. Then x the loopers

in place.

1. When the clearance between the needle

and the looper is adjusted, the spreader

height has also to be adjusted simulta-

neously as described in "10-7. Clear-

ance between the spreader and looper

and the opening timing of the spreader"

p. 85.

2. Be sure to adjust the clearance when-

ever the needle size is changed.

❸

❹

10-6. Adjusting the needle guard

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

❸

❷

❸

❶

−0.03 to

0.05 mm

❷

1) Loosen setscrew ❶.

2) Set the clearance between needle ❷ and needle guard ❸ to –0.03 to 0.05 mm. However, the clearance should be adjusted to smaller than the clearance provided between the needle and the looper.

3) Tighten setscrew ❶.

4) Check the position both at the time of needle

inside and of needle outside.

Be sure to adjust the needle guard when

the needle size is changed or when the adjustment of needle and looper is performed.

Adjust the clearance when needle

aligns with the looper balde point at the inside and outside respectively.

Needle inside

Needle outside

− 84 −

In the case of sewing a heavy-weight

material, adjust the clearance provid-

ed between the needle ❷ and needle guard ❸ to 0 (zero).

Page 88

10-7. Clearance between the spreader and looper

and the opening timing of the spreader

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

❶

Left

looper

Right

looper

❸ ❸

❷

Loosen setscrew ❸ which xed the looper. Then, adjust the clearance by changing the vertical position of the looper.

● Clearance of left spreader ❶

Adjust so that clearance A of 0.1 to 0.2 mm is provided between the under surface of the top end of left

spreader ❶ and the top surface of the left looper and so that a resistance is applied to one thread when it passes between them.

● Clearance of right spreader ❷

The allowable range of clearance B provided between the under surface of right spreader ❷ and the top

surface of right looper is 0 to 0.05 mm.

1. When the vertical position of the looper is adjusted, the clearance between the needle and the looper has also to be adjusted simultaneously as described in "10-5. Clearance between the

needle and the looper" p. 84.

2. If the clearance provided between the spreader and the looper is outside the adjustable range,

stitch skipping and needle breakage can occur.

Top end of the left spreader juts out

❶

the left looper

Left looper

0 to 0.1mm

Center of hole in the

spreader and that of the hole in the looper

are aligned.

Right looper

− 85 −

❷

Installation position of the left spreader

●

The center of the forked section at the top

of left spreader ❶ is aligned with the center of the looper thread hole in the left looper.

When the top end of the left spread-

er in terms of the left looper pro-

trudes, stitch skipping will result.

●

Installation position of the right spreader

The internal surface of the right spreader

❷ is designed to be aligned with the inter-

nal surface of the spreader. Adjust the top

end of the spreader so that it retracts 0 to

0.1 mm from the inside of the right looper.

Page 89

❻

❶

❷

❻

Loosen setscrew ❺ in the spreader stopper and

adjust the position of spreader stopper ❻. Then x

the spreader in place. (Make the same adjustment

for both left/right spreaders.)

❺

❽

❺

To aligned

Needle

Timing to open/close the spreaders

●

In the case of the outer needle, the correct timing

is such that the left spreader completely closes at

the moment when the end face (side face) of the

needle is aligned with the top end of the left looper

while the needle bar comes down and the left looper

travels backward.

When the inner needle rests at its lower dead point,

the right spreader is in the closed state.

Make sure of the width or the timing when

the stitch bite width is changed or after

performing the looper timing adjustment.

❼

❾

Loosen setscrew ❽ of spreader driving shaft guide

❼. Adjust the timing by moving the guide up and

down. Then, x the spreader driving shaft guide by

tightening the setscrew.

Take care not to damage or deform needle

thread trimming spring ❾.

− 86 −

Page 90

10-8. Height of the throat plate

(1) Height of the throat plate

Install the throat plate at the position where top surface

❶

❷

0.4 mm

(2) Adjusting the height of the throat plate

The height of the throat plate should be adjusted in the following procedure.

❹

❸

❷

❷ of the throat plate is 0.4 mm below top surface ❶

of the support plate.

1) Loosen screw ❸ and shift gimp guide ❹.

2) Loosen throat plate setscrew ❺ to remove throat plate ❷.

❻

❺

❷

❻

) Adjust the height of the

throat plate by turning screw ❻ located under the throat plate to change the screw height.

4) Adjust the screw height so that the height of the throat plate and that of work clamp support plate ❶ are adjusted

to 0.4 mm and x the

throat plate ❷ with its underside pressed against screw ❻.

5) After the completion of the throat plate height, return gimp guide ❹ to its home position and tighten screw ❸.

− 87 −

Page 91

10-9. Position of the presser foot

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

❷

❺

❶

❸

Adjust the protruding amount of presser foot, right ❹ from support plate, right ❺ to 0 to 0.5 mm. Loosen two setscrews ❶ in the presser arm base and

adjust the protruding amount by moving the base in

direction A or B. After the adjustment, x the presser

arm base by tightening the setscrews.

* Adjust the presser foot, left in the manner as de-

scribed above.

* The front or rear inclination can be adjusted with

presser arm setscrew ❸.

❹

0 to 0.5 mm

10-10. Adjusting the knife dropping position

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

❷

If the cloth trimming position deviates from the center, loosen setscrew ❶ in the knife base and adjust knife base ❷ to the right or left.

After the adjustment, x the knife base by tightening

setscrew ❶.

If the cloth trimming position deviates from

the center, troubles such that the nished

seam is cut at the time of trimming the cloth.

❶

− 88 −

Page 92

10-11. Installing position of the needle thread trimming knife

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

1) The clearance between needle thread trimming

knife ❷ and the needle is approximately 0.6 to 0.75

0.6 to 0.75 mm

❶

❷

❸

0 to 0.2 mm

❽❺

0.1 to 0.15 mm

mm.

Loosen setscrew ❶ and move needle thread triming

knife ❷ to adjust the clearance.

2) To adjust the height of needle thread trimming knife

❷, loosen setscrew ❼ and move needle thread trimming knife adjusting base ❸ up or down to

adjust the clearance between the needle thread trimming knife and spreader, right ❺ to 0.1 to 0.15

mm.

At this time, make sure that clearance A is provided

between the needle thread trimming knife and the

throat plate.

❷

0.6 to 0.75 mm

1.2 to 1.5 mm

❽

When needle thread trimming knife ❷ comes

in contact with spreader, right ❺, breakage

of components will be caused.

3) The operating position of needle thread trimming

knife ❷ is the position where needle thread trimming knife ❷ juts out from throat plate ❽ by 1.2

to 1.5 mm when needle thread trimming actuating arm ❻ is moved counterclockwise until stopper B ❾ of the needle thread trimming actuating arm

comes in contact with the needle thread trimming knife actuating arm ❻.

In the case adjustment is required, loosen needle

thread trimming knife actuating arm stopper B ❾,

and then adjust the screw jutting amount.

4) Adjust the overlapping amount between the bobbin

thread presser and the front end section of the

throat plate to 0 to 0.2 mm.

Adjust the overlapping amount by loosening nut ❹

and changing the jutting amount of the screw.

❸

❾

❹

❼

❻

− 89 −

Page 93

10-12. Cleaning

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

Thread waste may be sewn in the

seam. To prevent this, remove

thread waste and dust from the

throat plate and the thread guide if

accumulated.

❶

10-13. Draining

WARNING :

Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

Draw out

❷

When thread waste has accumulated in the dust tray, open front cover ❶, draw dust tray ❷ and remove the

accumulated thread waste. After the removal of thread waste, set dust tray ❷ in

its home position and close the front cover.

❶

When oil has accumulated in poly oiler ❶ installed under the bottom cover, remove poly oiler ❶ to dis-

card the oil.

− 90 −

Page 94

10-14. Replacing consuamables

(1) Worn-out of the hammer face

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

Contact face of the hammer with the cloth cutting knife.

1) Remove the hammer and check the condition of the

hammer surface. (Refer to "10-14. (2) Replacing

the cloth cutting knife and the hammer" p.92.)

2) When the knife mark is too deep, the knife mark is

duplicate (A of Fig. on the left side) by using another

knife or the knife mark is partially formed and not

formed on the whole surface (B of Fig. on the left

side), grind the face with an oil stone or the like so

Spacer

22 mm

Whenever the hammer is adjusted, a 0.1 to 0.3 mm spacer has to be adhered on the top surface

according to the grinding amount to adjust the height to check the sharpness of the knife blades.

If the sharpness checking proves poor sharpness, select a 0.1 to 0.3 mm spacer and place it between

the hammer and the cloth trimming arm.

The 0.1 to 0.3 mm spacer has to be purchased separately.

Part number: 40115638 SPECER_01 (Thickness: 0.1 mm)

40115639 SPECER_02 (Thickness: 0.2 mm)

40115640 SPECER_03 (Thickness: 0.3 mm)

Can be corrected

up to 0.3 mm.

that the knife mark becomes uniform.

3) When the cloth cannot be precisely cut although the hammer is properly corrected, check the state of worn-

out of the blade tip of the cloth cutting knife.

1. When replacing the knife, use a new hammer or a corrected hammer.

Breakage of the blade tip of the cloth cutting knife may occur.

2. The grinding amount of the hammer should not exceed 0.3 mm. If the knife sharpness cannot

be re-obtained by grinding it to the limit, replace the hammer with a new one.

− 91 −

Page 95

(2) Replacing the cloth cutting knife and the hammer

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

■ Replacing the hammer

❹

❺

❶

❸

❷

Knife spacer ❺ is placed between the hammer and the knife arm for adjusting the knife height. Three different kinds of spacers are supplied with the unit; i.e., 0.1 mm, 0.2 mm and 0.3 mm in

thickness.

* 0.1 mm thick spacer: Part number 40115638 * 0.2 mm thick spacer: Part number 40115639 * 0.3 mm thick spacer: Part number 40115640 If the knife blade and the hammer fail to engage properly with the factory-placed spacer after the

replacement of the knife or the hammer, replace the spacer with another spacer of appropriate

thickness.

Reference for the adjustment of the knife spacer height

• The top point side of eyelet buttonhole cannot be trimmed. → Replace the spacer with a thicker one.

• The end point side of eyelet buttonhole cannot be trimmed.

→ Replace the spacer with a thinner one.

1) Loosen thumbscrew ❶ and remove hammer ❷.

2) Tighten thumbscrew ❶ with the new hammer pressed against stopper ❸.

1. Stopper ❸ is for positioning. Do not

move it.

2. Knife spacer ❺ for adjusting the knife

height has been factory-placed between

hammer ❷ and knife arm ❹ at the time

of shipment. When replacing the hammer, be sure to place female spacer ❺

between the hammer and the knife arm

without exception.

❼

❻

■ Replacing the cloth trimming knife

1) Loosen setscrew ❽ and remove cloth trimming knife ❼.

2) Tighten setscrew ❽ with the new knife pressed against stopper ❻.

Do not loosen screw ❾ of stopper ❻ since

the distance from the center of needle to the

❾

❽

1. After you have changed the cloth trimming knife, match the knife size and the knife number displayed on the operation panel.

Refer to "7-1. Setting the knife No." p. 52 and "11-4. Cloth cutting knife" p. 97 for details.

2. Use the cloth cutting knife and the hammer as a set. If the cloth trimming knife and the hammer

are not used as a set, two different blade marks will be made on the material. This means that the material cannot be cut with accuracy. As a result, breakage of the cloth trimming knife can

be caused.

crest of the cloth trimming knife eyelet has

been factory-adjusted to 54 mm.

− 92 −

Page 96

(3) Replacing the looper thread trimming knife (overall thread trimmer type)

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

When the looper thread is not cut sharply, replace

the looper thread trimming knife with a new one. The

Looper thread trimming knife unit

[Replacement procedure]

part number of the looper thread trimming knife is

40115260.

❶

❷

❸

❽

❹

❼

1) Close the air cock (refer to "3-14. Installing the air

hose" p. 27) to remove air.

2) Remove screw ❶, washer ❷ and square die ❸.

3) Loosen the setscrew ❽ to remove collar ❹.

4) Remove screw ❻ and washer ❺.

❺

❻

5) Remove knife unit ❼. Assemble a new knife unit

(part number: 40115260) and x it by tightening the

screw.

6) Open the air cock (refer to "3-14. Installing the air

hose" p. 27) to supply air.

− 93 −

Page 97

(4) Replacing the needle thread trimming knife

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the bobbin thread trimming knife and needle thread trimming knife during the adjustment procedure.

When the needle thread is not cut sharply, replace the needle thread trimming knife with a new one. The part number of the needle thread trimming knife is

40115277.

Refer to "10-11. Installing position of the needle

thread trimming knife" p. 89 for how to install the

knife.

(5) Changing the thread trimmer retaining plate (needle thread trimmer type)

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

When the looper thread and the gimp are not smoothly

❷

trimmed, replace thread trimmer retaining plate ❶ with a new one. Remove screws ❷ and replace the thread trimmer retaining plate with a new one. Fix the new thread trimmer retaining plate with two screws ❷.

❶

(6) Standard of replacing time of the gas spring

DANGER :

There is a risk of pinching of hand, ngers and arms to cause a serious injury if you raise it

when the gas spring does not function, since the sewing machine is very heavy in weight. In order to prevent an accident, be sure to replace the gas spring with a new one before it is too late according to the standard of replacing time (as described below).

WARNING :

1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start

of the sewing machine.

2. To avoid unexpected personal injuries, be sure to keep away from the looper thread trimming

knife during work.

Gas spring is one of the consumables. Gas inside the gas spring will be gone naturally even when the frequency of use is low and the spring cannot display the thrust to secure the safety. If a load equal to or larger than 156N is required when the sewing machine is lifted by strapping front foot section ❶ of the bed with a piece

of string as shown in the gure at the left, immediately change the

gas spring with JUKI's genuine gas spring (part number: 40100390).

1. Do not strap any section of the machine other than

front foot section ❶.

2. The gas spring has a part which is sensitive to the lateral load when the rod section has aws or the gas spring has fully stretched. Carefully avoid the gas spring being damaged and applied with excessive forces during maintenance and cleaning of the

❶

sewing machine.

− 94 −

Page 98

(7) Replacing the gas spring

DANGER :

Replacement work has to be carried out within the dened range by a service technician who

has full knowledge of the machine.

❶

❹

❺

❻

1) Lift the sewing machine until the hinge stopper

reaches its 4th step and let the hinge stopper lock

the sewing machine. Refer to "3-6. Raising and

returning the sewing machine" p. 16 for how

to lift the sewing machine.

DANGER :

If the hinge stopper is not locked, the

sewing machine can drop to pinch hands, ngers and arms leading to a serious injury.

Make sure that the hinge stopper is locked

with support shaft ❶.

Never release the lock of the hinge stopper

until the gas spring replacement procedure is completed.

2) Check to be sure that gas spring ❷ does not apply force to the sewing machine. Then, remove nut ❹ from fulcrum shaft ❸. Remove fulcrum shaft ❸, washer ❺ and thrust collar ❻.

❷

❼

❺

❸

❷

3) Loosen four screws ❽ which are used to x fulcrum shaft ❼ located below gas spring ❷. Remove fulcrum shaft ❼.

4) Install new gas spring in the same manner as the

previous one. Reverse the removal procedure,

assemble the new gas spring.

Check to be sure that the assembled screws

and nut are rmly tightened.

5) After the completion of assembly, return the sewing

machine to its home position.

Refer to "3-6. Raising and returning the sewing

machine" p. 16 for how to return the sewing

machine to its home position.

❽

− 95 −

Page 99

11. EXCHANGING GAUGE PARTS AND OPTIONAL

11-1. Throat plate

A01

Name of part

Applicable needle

throwing width

Needle size #90 to #110

Gimp position W 1.8

Shape

Part No. 40115404 40115406 40115403 40115405

Type

* Throat plate for narrow needle throwing width Provided that the applicable needle throwing width does not exceed the maximum of 3.2 mm, it is possible to shift the

presser foot inward by 0.8 mm with respect to the standard throat plate. As a result, sewing troubles such as a stitch skipping on the machine with a cut-before knife and seam grinning on denim can be prevented effectively.

* (for narrow needle

throwing width)

2.0 to 3.2mm 2.0 to 4.0mm 2.0 to 3.2mm 2.0 to 4.0mm

For J01 and C01 types

Option

(for wide needle throw-

For J01 and C01 types

B01

ing width)

Standard

A00

* (for narrow needle

throwing width)

For J00 and C00 types

Option

B00

(for wide needle throw-

ing width)

For J00 and C00 types

Standard

11-2. Presser set

* The mark in [ ] parentheses shows the standard equipment for each type.

Name of

part

Press-

er set

Shape

(left)

Part No. 40115325 40115309 40115241 40115239

Press-

(right)

Press-

Shape

er set

Part No. 40115324 40115316 40115240 40115238

Name of

part

er set

Shape

(left)

Part No. 40035239 40039844 14059604 14059802

Compensating foot for

eyelet buttonhole

34mm

[C01] [C00] [J01] [J00]

Edge presser for eyelet hole

32mm

Compensating foot for

eyelet buttonhole

38mm

Edge presser for eyelet hole

22mm

Edge presser for eyelet hole

34mm

For eyelet buttonhole

32mm

Edge presser for eyelet hole

38mm

For eyelet buttonhole

22mm

Press-

(right)

Shape

er set

Part No. 40035238 40039843 14059505 14059703

– 96 –

Page 100

11-3. Presser holding plate

Name of part

Shape of hole Eyelet buttonhole Eyelet buttonhole

Stitch length 10 to 34 10 to 38

Shape

Part No.

Type For J01 and C01 types For J00 and C00 types

Eyelet buttonhole presser

holding plate, left

40115322 40115323 32027104 32027005

Eyelet buttonhole presser

holding plate, right

Eyelet buttonhole presser

holding plate, left

Eyelet buttonhole presser

holding plate, right

11-4. Cloth cutting knife

Name of part For eyelet buttonhole For decorative buttonhole

Shape

Part No. X Y L Remarks

Provided as standard 40115664 2.8 4.3 26

Eyelet

buttonhole

Decorative

buttonhole

Only for the sewing machine provided with the needle thread trimmer

40115665 2.8 4.3 38

32063604 2.9 4.4 24

32063703 2.9 4.4 32

32063802 2.1 3.2 38

32063901 2.1 3.2 24

32064008 2.1 3.2 32

32064107 3.2 5.4 38

32064206 3.2 5.4 24

32064305 3.2 5.4 32

32066904 2.7 5.1 38

14041404 0 0 38

32065302 0 0 24

32065401 0 0 32

*1 Part number of the optional spacer is 40115728.

Adhere the optional spacer and the cloth trimming knife

with each other with their holes aligned so as to prevent

the holes are covered.

Optional

spacer is

used *1

Optional spacer

– 97 –

Holes are aligned

Cloth trimming knife

JUKI MEB-3810N Series, MEB-3810NJ, MEB-3810NC Instruction Manual

CONTENTS

1. SPECIFICATIONS

2. NAME OF EACH COMPONENT

3. INSTALLATION

3-1. Table

(1) Drawing of the stand

(3) Drawing of the table (Semi-sunken type)

3-2. Installing the control box

3-3. Installing and connecting the power switch

3-4. Taking out the sewing machine

3-5. Installing the sewing machine

(2) In the case of the semi-sunken type machine head

3-6. Raising and returning the sewing machine

3-7. Installing the poly oiler

3-8. Installing the operation panel

3-9. Installing the regulator and the manifold

3-10. Connecting the cords

3-11. Handling the cords

3-12. Installing the foot pedal switch (optional)

3-13. Connecting the air supply

(1) Connecting the regulator and the manifold

(2) Connecting the air tubes

3-14. Installing the air hose

Cautions for the compressed air supply (source of supply air) facility

3-16. Installing the thread stand

3-17. Installing the thread guides

3-19. Installing the cloth chip bag

3-20. Installing/removing the presser unit

4. PREPARATION BEFORE OPERATION

4-1. Lubrication of the machine and how to lubricate

(1) Lubricating the arm oil tank

(2) Lubricating the bed oil tank

(3) Lubricating the looper and spreader components

(4) Lubricating the looper bracket oil tank

(5) Lubricating the needle bar and the gear section

4-2. Attaching the needle

4-3. Threading the machine head

(1) Threading the upper thread (needle thread)

(2) Threading the lower thread (looper thread)

(3) Threading the machine with gimp

4-4. How to set the cloth on the sewing machine

5. STRUCTURE OF THE OPERATION SWITCH

5-1. Structure of the operation panel

5-2. Temporary stop switch

5-3. Hand switch

5-4. Foot switch (optional)

6. HOW TO USE THE OPERATION PANEL

6-1. Basic operation of the sewing machine

6-2. Setting the thread tension

6-3. Temporarily stopping the sewing machine

6-4. Performing re-sewing

6-5. Performing threading

6-6. How to use the counter

6-7. When dropping of the knife is temporarily not desired

6-8. Changing the operation mode

6-9. Changing procedure of the sewing pattern

7. SETTING PROCEDURE OF THE SEWING DATA

7-1. Setting the knife No.

7-2. Setting the cut length

7-3. Setting the cut-before/cut-after knives

7-4. Setting the number of stitches of the parallel section

7-5. Setting the number of stitches of the eyelet

7-6. Setting the cut space

7-7. Setting the eyelet space

7-8. Knife position compensation

7-9. Number of stitches of sewing end compensation

7-10. Turning angle compensation

7-11. Turning angle compensation at the parallel section

7-12. Compensation of eyelet in lateral direction

7-13. Compensation of eyelet in longitudinal direction

7-14. Compensation of eyelet, left in longitudinal direction

7-15. Compensation of left parallel section of a buttonhole

7-16. Compensation of cutting space, left

Setting the needle throwing width of the right bottom of eyelet

Setting the needle throwing width of the left bottom of eyelet

7-19. Setting the needle throwing width

7-20. Setting the type of bartack

7-21. Setting the length of taper bar

7-22. Setting the number of stitches of taper bar