Please read this manual before using the machine.
Please keep this manual within easy reach for quick reference.
ELECTRONIC DIRECT DRIVE LOCKSTITCH BAR TACKER
ELECTRONIC DIRECT DRIVE LOCKSTITCH BUTTON SEWER
Thank you very much for buying a BROTHER sewing machine. Before using your new machine,
please read the safety instructions and the explanations given in the instruction manual.
With industrial sewing machines, it is normal to carry out work while positioned directly in front of moving parts
such as the needle and thread take-up, and consequently there is always a danger of injury that can be caused
by these parts. Follow the instructions from training personnel and instructors regarding safe and correct
operation before operating the machine so that you will know how to use it correctly.
KE-430FX II/KE-430FS II, BE-438FX II
SAFETY INSTRUCTIONS
1. Safety indications and their meanings
This instruction manual and the indications and symbols that are used on the machine itself are provided in order to ensure
safe operation of this machine and to prevent accidents and injury to yourself or other people.
The meanings of these indications and symbols are given below.
Indications
DANGER
CAUTION
Symbols
・・・・・・
This symbol ( ) indicates something that you should be careful of. The picture inside the triangle
indicates the nature of the caution that must be taken.
(For example, the symbol at left means “beware of injury”.)
The instructions which follow this term indicate situations where failure to follow the
instructions will result in death or serious injury.
The instructions which follow this term indicate situations where failure to follow the
instructions could cause injury when using the machine or physical damage to equipment
and surroundings.
・・・・・・
・・・・・・
This symbol ( ) indicates something that you must not do.
This symbol ( ) indicates something that you must do. The picture inside the circle indicates the
nature of the thing that must be done.
(For example, the symbol at left means “you must make the ground connection”.)
KE-430FX II/KE-430FS II, BE-438FX II
i
2. Notes on safety
Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet
before opening the face plate of the control box. Touching areas where high voltages are present can result in
severe injury.
DANGER
CAUTION
Environmental requirements
Use the sewing machine in an area which is free from
sources of strong electrical noise such as electrical
line noise or static electric noise.
Sources of strong electrical noise may cause
problems with correct operation.
Any fluctuations in the power supply voltage should
be within ±10% of the rated voltage for the machine.
Voltage fluctuations which are greater than this may
cause problems with correct operation.
The power supply capacity should be greater than the
requirements for the sewing machine’s power
consumption.
Insufficient power supply capacity may cause
problems with correct operation.
Installation
Machine installation should only be carried out by a
qualified technician.
Contact your Brother dealer or a qualified electrician
for any electrical work that may need to be done.
The sewing machine weighs approximately 57 kg.
The installation should be carried out by two or more
people.
Do not connect the power cord until installation is
complete, otherwise the machine may operate if the
foot switch is depressed by mistake, which could
result in injury.
Hold the machine head with both hands when tilting it
back or returning it to its original position.
Furthermore, after tilting back the machine head, do
not push the face plate side or the pulley side from
above, as this could cause the machine head to
topple over, which may result in personal injury or
damage to the machine.
Be sure to connect the ground. If the ground
connection is not secure, you run a high risk of
receiving a serious electric shock, and problems with
correct operation may also occur.
The ambient temperature should be within the range
of 5°C to 35°C during use.
Temperatures which are lower or higher than this
may cause problems with correct operation.
The relative humidity should be within the range of
45% to 85% during use, and no dew formation should
occur in any devices.
Excessively dry or humid environments and dew
formation may cause problems with correct operation.
In the event of an electrical storm, turn off the power
and disconnect the power cord from the wall outlet.
Lightning may cause problems with correct operation.
All cords should be secured at least 25 mm away
from any moving parts. Furthermore, do not
excessively bend the cords or secure them too firmly
with staples, otherwise there is the danger that fire or
electric shocks could occur.
Install the safety covers to the machine head and
motor.
If using a work table which has casters, the casters
should be secured in such a way so that they cannot
move.
Be sure to wear protective goggles and gloves when
handling the lubricating oil and grease, so that they
do not get into your eyes or onto your skin, otherwise
inflammation can result.
Furthermore, do not drink the oil or eat the grease
under any circumstances, as they can cause vomiting
and diarrhea.
Keep the oil out of the reach of children.
ii
KE-430FX II/KE-430FS II, BE-438FX II
CAUTION
Sewing
This sewing machine should only be used by
operators who have received the necessary training
in safe use beforehand.
The sewing machine should not be used for any
applications other than sewing.
Be sure to wear protective goggles when using the
machine.
If goggles are not worn, there is the danger that if a
needle breaks, parts of the broken needle may enter
your eyes and injury may result.
Turn off the power switch at the following times,
otherwise the machine may operate if the foot switch
is depressed by mistake, which could result in injury.
• When replacing the needle and bobbin
• When not using the machine and when leaving the
machine unattended
Use threading mode or turn off the power first in order
to carry out threading.
Cleaning
Turn off the power switch before carrying out
cleaning, otherwise the machine may operate if the
foot switch is depressed by mistake, which could
result in injury.
If using a work table which has casters, the casters
should be secured in such a way so that they cannot
move.
Attach all safety devices before using the sewing
machine. If the machine is used without these
devices attached, injury may result.
Do not touch any of the moving parts or press any
objects against the machine while sewing, as this
may result in personal injury or damage to the
machine.
If an error occurs in machine operation, or if abnormal
noises or smells are noticed, immediately turn off the
power switch. Then contact your nearest Brother
dealer or a qualified technician.
If the machine develops a problem, contact your
nearest Brother dealer or a qualified technician.
Be sure to wear protective goggles and gloves when
handling the lubricating oil and grease, so that they
do not get into your eyes or onto your skin, otherwise
inflammation can result.
Furthermore, do not drink the oil or eat the grease
under any circumstances, as they can cause vomiting
and diarrhea.
Keep the oil out of the reach of children.
Maintenance and inspection
Maintenance and inspection of the sewing machine
should only be carried out by a qualified technician.
Ask your Brother dealer or a qualified electrician to
carry out any maintenance and inspection of the
electrical system.
Turn off the power switch and disconnect the power
cord from the wall outlet at the following times,
otherwise the machine may operate if the foot switch
is depressed by mistake, which could result in injury.
• When carrying out inspection, adjustment and
maintenance
• When replacing consumable parts such as the
rotary hook
If the power switch needs to be left on when carrying
out some adjustment, be extremely careful to observe
all safety precautions.
KE-430FX II/KE-430FS II, BE-438FX II
Hold the machine head with both hands when tilting it
back or returning it to its original position.
Furthermore, after tilting back the machine head, do
not push the face plate side or the pulley side from
above, as this could cause the machine head to
topple over, which may result in personal injury or
damage to the machine.
Use only the proper replacement parts as specified
by Brother.
If any safety devices have been removed, be
absolutely sure to re-install them to their original
positions and check that they operate correctly before
using the machine.
Any problems in machine operation which result from
unauthorized modifications to the machine will not be
covered by the warranty.
iii
3. Warning labels
The following warning labels appear on the sewing machine.
Please follow the instructions on the labels at all times when using the machine. If the labels have been removed or are
difficult to read, please contact your nearest Brother dealer.
1
2
3
4
5
Touching areas where high voltages are present can
result in severe injury.
Turn off the power before removing the cover.
Be careful to avoid injury from the moving thread
take-up.
Be careful not to get your hands caught when
returning the machine head to its original position
after it has been tilted.
Be sure to connect the ground. If the ground
connection is not secure, you run a high risk
of receiving a serious electric shock, and
problems with correct operation may also
occur.
7
8
Direction of operation
Do not hold, otherwise problems with
operation or injury may occur.
The sewing patterns shown below have been preset into the sewing machine and can be selected according to specifications.
(Any sewing pattern is available as long as it is within the work clamp and feed plate in size.)
Use the work clamp and feed plate that match the respective sewing pattern selected.
The sewing size is the length when the enlargement/reduction ratio is 100%.
For medium-weight materials (-03)
No. Pattern
No. of
stitches
Tacking size (mm)
Length
Width
No.Pattern
1 42 16 2 65
4 31 16 2 66
5
8
13
15
20
21
29 10 2 67
21 7 2 68
35 10 2 69
42 10 2 70
28 7 2 71
35 7 2 72
No. of
stitches
Tacking size (mm)
Length
Width
43 16 2
32 16 2
30 10 2
22 7 2
36 10 2
43 10 2
29 7 2
36 7 2
64 30 16 2 89
For heavy-weight materials (-05)
No. Pattern
No. of
stitches
Tacking size (mm)
Length
Width
No.Pattern
2 42 20 3 18
3 35 20 3 19
6
14
16
30 16 3 62
35 16 3 63
43 16 3 78
17 42 24 3 79
90 24 3
No. of
stitches
Tacking size (mm)
Length
Width
56 24 3
64 24 3
42 20 3
35 20 3
43 20 3
36 20 3
KE-430FX II/KE-430FS II, BE-438FX II
3
2. SPECIFICATIONS
No. Pattern
No. of
stitches
For heavy-weight materials (-05)
Tacking size (mm)
Length
Width
No.Pattern
No. of
stitches
Tacking size (mm)
Length
Width
80
81
82
No. Pattern
7
9
22
31*
32*
31 16 3 83
36 16 3 84
44 16 3 85
For knitted materials (-0K) and light-weight materials (-01)
No. of
stitches
Tacking size (mm)
Length
Width
No.Pattern
28 8 2 73
21 7 2 74
14 7 2 75
28 8 2 76*
22 8 2 77*
43 24 3
57 24 3
65 24 3
No. of
stitches
Tacking size (mm)
Length
29 8 2
22 7 2
15 7 2
29 8 2
23 8 2
Width
33*
15 8 2
* The sewing start and sewing end are in the middle of the pattern.
Straight bar tacking Vertical zigzag stitching
No. Pattern
10
11
12
23
24
25
No. of
stitches
Tacking size (mm)
Length
21 10 0.3
28 10 0.3
28 20 0.3
35 25 0.3
42 25 0.3
45 25 0.3
Width
No.Pattern
44
45
No. of
stitches
Tacking size (mm)
Length
Width
46 9 15
70 9 25
4
KE-430FX II/KE-430FS II, BE-438FX II
Vertical bar tacking Vertical straight bar tacking
No. Pattern
No. of
stitches
Tacking size (mm)
Length
Width
No.Pattern
2. SPECIFICATIONS
No. of
stitches
Tacking size (mm)
Length
Width
26
27
40
41
28 3 10 28
35 3 10 29
32 3 16 30
19 0.3 10
21 0.3 10
28 0.3 10
36 3 16 46
27 0.3 20
42
43
44 3 20 47
44 0.3 25
68 3 24
KE-430FX II/KE-430FS II, BE-438FX II
5
2. SPECIFICATIONS
Crescent bar tacking
No. Pattern
34
35
36
Crossed stitching
No. of
stitches
Tacking size (mm)
Length
Width
No.Pattern
35 12 7 37
58 12 7 38
57 7 12 39
Crossed tacking
No. of
stitches
Tacking size (mm)
Length
Width
57 7 12
53 7 10
53 7 10
No. Pattern
48
49
No. of
stitches
Tacking size (mm)
Length
Width
70 10 10 50
93 9.6 9.6 51
No.Pattern
No. of
stitches
Tacking size (mm)
Length
Width
84 16 16
105 30 26
6
KE-430FX II/KE-430FS II, BE-438FX II
2. SPECIFICATIONS
L-pattern tacking
No. Pattern
52
54
No. Pattern
56
No. of
stitches
Tacking size (mm)
Length
Width
No.Pattern
60 11.3 11.2 53
78 15.3 15.2 55
Circular stitching
No. of
stitches
Tacking size (mm)
Length
Width
No.Pattern
106 9 9 59
No. of
stitches
Tacking size (mm)
Length
Width
60 11.3 11.2
78 15.3 15.2
No. of
stitches
Tacking size (mm)
Length
Width
104 10 10
57
58
116 9 9 60
127 9 9 61
114 10 10
124 10 10
For eyelet buttonhole
No. Pattern
86
No. of
stitches
Tacking size (mm)
Length
Width
21 6 2
87
28 6 2
88
35 6 2
If you want to sew a sewing pattern other than standard sewing patterns, you can create your original pattern using the
PS-300B. Consult with your local Brother sales office for details.
Note when creating additional sewing patterns
When sewing data with a small number of stitches (15 stitches or less) is sewn repeatedly (short cycle operation), the
upper shaft motor may overheat and the “E150” error code may be generated.
KE-430FX II/KE-430FS II, BE-438FX II
7
2. SPECIFICATIONS
2-3. List of sewing patterns (BE-438FX II)
The sewing patterns shown below have been preset into the sewing machine. Any sewing pattern can be selected as long as
the needle will drop down into the holes of the buttons.
When sewing patterns that do not have crossover stitches, the thread is trimmed after sewing of one side is completed, and
then the other side is sewn.
No.
1
No. of holes
in button
Pattern
No. of
threads
6 ― 12
No. of
crossover
stitches
No. of
stitches
Sewing size (mm)
X Y
*1
54
2 8 ― 14
*1
55
3 10
4 12 ― 18
*2
5
*2
6
*1
56
*3
7
*3
23
*3
8
*3
9
*3
24
*3
25
*3
26
*1
57
2
3
6 ― 12
8 ― 14
3.4 0
―
16 ― 22
20 ― 26
6 ― 11
6 ― 12
10 ― 16
12 ― 18
5-5-5 ― 21
7-7-7 ― 27
5-5-5 ― 21
7-7-7 ― 27
6-6 1 18
16
0 3.4
2.6 2.4
10 6-6 1 19
*1
58
11 8-8 1 23
12 8-8 3 25
13 10-10 1 27
27 12-12 1 31
*1 Use for buttons with small holes.
*2 Check that the diameter of the holes in the buttons is 2 mm or greater before using the programs.
*3 Do not use the button lifter spring.
8
4
KE-430FX II/KE-430FS II, BE-438FX II
8-8 1 22
3.4 3.4
2. SPECIFICATIONS
No.
14
36
28
37
15
38
29
39
59
No. of holes
*4
*5
*4
*5
*4
*5
*4
*5
*1
in button
Pattern
No. of
threads
No. of
crossover
stitches
No. of
stitches
6-6 0 24
6-6 0 24
8-8 0 28
8-8 0 28
10-10 0 32
10-10 0 32
12-12 0 36
12-12 0 36
6-5 1 17
Sewing size (mm)
X Y
16 6-5 1 18
60
*1
8-7 1 21
17 8-7 1 22
30 10-9 1 26
61
*1
4
6-6 1 18
3.4 3.4
18 6-6 1 19
*1
62
8-8 1 22
19 8-8 1 23
*1
63
10-10 1 26
31 10-10 1 27
45 12-12 1 31
20
40
32
41
33
42
*4
*5
*4
*5
*4
*5
6-6 0 24
6-6 0 24
8-8 0 28
8-8 0 28
10-10 0 32
10-10 0 32
*1 Use for buttons with small holes.
*4 When sewing of one side is completed, the button clamp rises and the thread is wiped. To finish sewing, press the foot
switch until sewing of the other side starts, or press the foot switch again after sewing of the other side is completed.
*5 When sewing of one side is completed, the thread will be wiped without the button clamp rising, and then the other side
will be sewn.
KE-430FX II/KE-430FS II, BE-438FX II
9
2. SPECIFICATIONS
No.
*1
64
*3
21
*3
34
*3*4
22
*3*5
43
*3*4
35
*3*5
44
No. of holes
in button
4
Pattern
No. of
threads
No. of
crossover
stitches
No. of
stitches
Sewing size (mm)
X Y
6-6 1 18 3.4
6-6 1 19
10-10 1 27
6-6 0 24
3.4
2.4
6-6 0 24
10-10 0 32
10-10 0 32
46
6-7 1 19
47 8-9 1 23
3.4 3.4
48 10-11 1 27
49 12-13 1 31
*1 Use for buttons with small holes.
*3 Do not use the button lifter spring.
*4 When sewing of one side is completed, the button clamp rises and the thread is wiped. To finish sewing, press the foot
switch until sewing of the other side starts, or press the foot switch again after sewing of the other side is completed.
*5 When sewing of one side is completed, the thread will be wiped without the button clamp rising, and then the other side
will be sewn.
For shank button
No. Pattern No. of threads
50
6 12
No. of
stitches
Sewing size (mm)
X Y
51 8 14
3.4 0
52 10 16
53 12 18
Note when creating additional sewing patterns
When sewing data with a small number of stitches (15 stitches or less) is sewn repeatedly (short cycle operation), the
upper shaft motor may overheat and the “E150” error code may be generated.
10
KE-430FX II/KE-430FS II, BE-438FX II
3. INSTALLATION
3. INSTALLATION
CAUTION
Machine installation should only be carried out by a
qualified technician.
Contact your Brother dealer or a qualified electrician
for any electrical work that may need to be done.
The sewing machine head weighs approximately 57
kg. The installation should be carried out by two or
more people.
Do not connect the power cord until installation is
complete, otherwise the machine may operate if the
foot switch is depressed by mistake, which could
result in injury.
Hold the machine head with both hands when tilting it
back or returning it to its original position.
Furthermore, after tilting back the machine head, do
not push the face plate side or the pulley side from
above, as this could cause the machine head to
topple over, which may result in personal injury or
damage to the machine
.
All cords should be secured at least 25 mm away
from any moving parts. Furthermore, do not
excessively bend the cable or secure it too firmly
staples, otherwise there is the danger that fire or
electric shocks could occur.
Be sure to connect the ground. If the ground
connection is not secure, you run the risk of receiving
a serious electric shock, and problems with correct
operation may also occur.
Install the safety covers to the machine head and
motor.
3-1. Table processing diagram
• The thickness of the table should be at least 40 mm, and it should be strong enough to bear the weight and vibration of the
sewing machine.
• Check that the control box is at least 10 mm away from the leg. If the control box and the leg are too close together, it may
result in incorrect sewing machine operation.
2453B
11KE-430FX II/KE-430FS II, BE-438FX II
3. INSTALLATION
3-2. Installing the control box
2280B
Remove the six screws (1), and then
remove the control box cover (2).
Pass the felt (13) and the oil tube (14)
through the hole in the dust oiler support
(15) into the oiler (16).
3740B
KE-430FX II/KE-430FS II, BE-438FX II
13
3. INSTALLATION
3741B
1. Remove the two screws (17), and
then temporarily remove the machine
head switch (18).
2. Use the two screws (17) which were
removed to install the machine head
switch (18) in the position shown in
the illustration.
3. Check that the machine head switch
as turned on as shown in figure [A].
* If the machine head switch is not
turned on, adjust the installation
position while referring to “3-14.
Checking the machine head switch”.
3-5. Installing the operation panel
2286B
(1) Operation panel
(2) Wood screws [4 pcs]
* Pass the panel cord through the
hole in the table, and then insert it
into the control box through the
hole in the side of the control box.
(3) Staples [3 pcs]
14 KE-430FX II/KE-430FS II, BE-438FX II
3-6. Installing the cotton stand
3-7. Installing the button tray (BE-438FX II)
3636M
4410Q
3. INSTALLATION
(1) Cotton stand
NOTE:
Securely tighten the nut (4) so that the
two rubber cushions (2) and the
washer (3) are securely clamped and
so that the cotton stand (1) does not
move.
Install the button tray at a place
convenient for operation.
5. Close the cord presser plate (2) in the direction of the white
arrow, and secure it by tightening the two screws (1).
NOTE:
Close the cord presser plate (2) securely so that no
foreign objects, insects or small animals can get inside the
control box.
6. Check that the cords do not get pulled, and then gently return
the machine head to its original position.
2291B
18 KE-430FX II/KE-430FS II, BE-438FX II
3-10. Connecting the ground wire
CAUTION
Be sure to connect the ground. If the ground connection is not secure, you run the risk of receiving a serious electric
shock, and problems with correct operation may also occur.
(1) Ground wire from the machine head (Ground mark position)
* The recommended tightening torque for the ground screws is 1.0±0.1 N・m.
NOTE:
Make sure that the ground connections are secure in order to ensure safety.
3. INSTALLATION
3742B
19KE-430FX II/KE-430FS II, BE-438FX II
3. INSTALLATION
3-11. Installing the rear cover
(1) Rear cover
(2) Screws [4 pcs]
NOTE:
Be careful not to clamp the cords when
installing the rear cover (1).
3754B
20 KE-430FX II/KE-430FS II, BE-438FX II
3-12. Lubrication
Do not connect the power cord until lubrication has been completed, otherwise the machine may operate if the foot switch
is depressed by mistake, which could result in injury.
Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into
your eyes or onto your skin, otherwise inflammation can result.
Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhea.
Keep the oil out of the reach of children.
CAUTION
・ The sewing machine should always be lubricated and the oil
supply replenished before it is used for the first time, and also
after long periods of non-use.
・ Use only the lubricating oil <Nippon Oil Corporation Sewing
Lube 10N; VG10> specified by Brother.
* If this type of lubricating oil is difficult to obtain, the recommended oil
to use is <Exxon Mobil Essotex SM10; VG10>.
1. Hold the base of the nozzle of the accessory oil tank (1), and
use scissors to cut about half-way along the straight section
(A) of the nozzle.
2. Loosen and remove the nozzle, and then remove the seal
(2).
3. Tighten the nozzle.
4. Open the oil feeding pocket cover (3).
5. Insert the nozzle of the oil tank (1) deeply into the oil feeding
pocket (4), and then add lubricating oil.
6. Check that the oil level is between the upper reference line
and the lower reference line in the oil gauge window (5).
NOTE:
• When the oil level drops below the lower reference line in the
oil gauge window, be sure to add more oil. If the oil level drops
below the lower reference line, problems with operation of the
sewing machine such as seizing may occur.
• Do not add oil so that the oil level goes above the upper
reference line, otherwise the oil may spill out when the
machine head is tilted back
Upper
reference
line
Lower
reference
line
3. INSTALLATION
(Continued on next page.)
2294B
KE-430FX II/KE-430FS II, BE-438FX II
21
3. INSTALLATION
B
s
2381B
2454B
7. Pour oil in through the two holes of the shuttle race base
assembly so that the felt (6) is lightly moistened.
NOTE:
• The two pieces of felt (6) should normally project by 0 to 0.5
mm from the hook race. Be careful not to push in the felt (6)
when lubricating.
• If there is no more oil on the felt (6) of the shuttle race base
assembly, problems with sewing may result.
<When using the needle cooler (option)>
If using the needle cooler (option) (1), fill it with silicon oil.
3-13. Connecting the power cord
CAUTION
<Seen from underneath table>
e sure to connect the ground. If the ground connection is not secure, you run a high risk of receiving a serious electric
hock, and problems with correct operation may also occur.
Control box
Leg
Connect cords that match the voltage
specifications.
1. Attach an appropriate plug to the
power cord (9). (The green and yellow
wire is the ground wire.)
2. Insert the power plug into a
properly-grounded electrical outlet.
* The inside of the control box uses
single-phase power.
NOTE:
• If the ground connection is not secure,
electric shocks, operating errors or
damage to electronic components such
as P.C. boards may occur.
• Take care when tapping in the staples
(7) to make sure that they do not pierce
the cords.
• Do not use extension cords, otherwise
machine operation problems may
result.
3. Use the six screws to tighten the cover
of the control box. Check that none of
the cords are being clamped by the
cover at this time.
2351B
24 KE-430FX II/KE-430FS II, BE-438FX II
y
3-14. Checking the machine head switch
1. Turn on the power switch.
2. Check that no error numbers appear on the operation panel.
<If error [E050], [E051] or [E055] is displayed>
If the machine head switch (1) is not turned on, error [E050],
[E051] or [E055] will occur.
Use the screw (2) to adjust the installation position of the
machine head switch as shown in the illustration.
2295B
3-15. Starting up
4421Q
1. Turn on the power switch.
3. INSTALLATION
The POWER indicator (3) will illuminate, and the model
name will appear in the tension value display (4) and the
specifications will appear in the section No. display (5).
2346B
2nd step
2339B
SpecificationsDispla
Medium-weight
materials
Heavy-weight
materials
Knitted materials [ - 0K]
Light-weight
materials
After this, the program number will flash in the program No.
display (6).
2. Depress the foot switch (7) to the 2nd step.
The feed mechanism will move to the home position and the
work clamp / button clamp will rise.
[ - 03]
[ - 05]
[ - 01]
KE-430FX II/KE-430FS II, BE-438FX II
25
4. PREPARATION BEFORE SEWING
A
4. PREPARATION BEFORE SEWING
4-1. Installing the needle
CAUTION
Turn off the power switch before installing the needle, otherwise the machine may operate if the foot switch is depressed
by mistake, which could result in injury.
2300B
1. Loosen the set screw (1).
2. Insert the needle (2) in a straight line as far as it will go,
making sure that the long groove on the needle is at the
front, and then securely tighten the set screw (1).
4-2. Threading the upper thread
Thread the upper thread correctly as shown in the illustration below.
* When using threading mode for threading, the tension discs (1) will open so that the thread can be threaded more easily. (Refer
to following page.)
[When using the needle cooler (option)]
[Two holes]
Spun rayon yarn
[One hole]
Synthetic thread
pprox. 40mm
26 KE-430FX II/KE-430FS II, BE-438FX II
3755B
4. PREPARATION BEFORE SEWING
<Threading mode>
Threading mode is safe because the sewing machine will not start even when the foot switch is depressed.
1
2
Threading the thread.
3
Ending threading mode
4
All indicators switch off
THREAD/CLAMP indicator flashes
Menu indicators switch off
THREAD/CLAMP indicator switches off
Turn on the power switch.
Press the THREAD/CLAMP key.
• The work clamp /button clamp will lower.
Press the THREAD/CLAMP key.
• The work clamp/button clamp will return to where it was
before threading mode was started.
4421Q
2340B
2389B
2390B
KE-430FX II/KE-430FS II, BE-438FX II
27
4. PREPARATION BEFORE SEWING
4-3. Winding the lower thread
Do not touch any of the moving parts or press any objects against the machine while winding the lower thread, as this may
result in personal injury or damage to the machine.
CAUTION
3756B
3757B
3172B
3173B
Case A
Case B
2341B
1. Place the bobbin onto the bobbin winder shaft (1).
2. Thread the thread as shown in the illustration, wind the
thread around the bobbin several times, and then press the
bobbin presser arm (2).
3. Turn on the power switch.
4. Depress the foot switch to the second step. The feed
mechanism will move to the home position.
5. Check that the needle is not touching the work clamp/button
clamp, and then while pressing the ENTER key (3), depress
the foot switch to the second step.
6. Release the ENTER key (3) after the machine starts
operating, and keep depressing the foot switch until the
lower thread stops being wound onto the bobbin.
(If you release the foot switch before winding is complete,
and then depress it again while pressing the ENTER key (3),
winding will start again.)
7. Once winding of the set amount of lower thread (80 - 90% of
the bobbin capacity) is completed, the bobbin presser arm
(2) will return automatically.
8. Remove the bobbin, hook the thread onto the knife (4), and
then pull the bobbin in the direction of the arrow to cut the
thread.
Adjusting the bobbin winding amount
Loosen the screw (5) and move the bobbin presser (6).
If the thread winds onto the bobbin unevenly
Loosen the nut (7) and move the bobbin winder tension
assembly (8) up and down to adjust.
* For case A, turn the bobbin winder tension assembly (8)
clockwise (a), and for case B, turn it counterclockwise (b).
28 KE-430FX II/KE-430FS II, BE-438FX II
4. PREPARATION BEFORE SEWING
4-4. Installing the bobbin case
CAUTION
Turn off the power switch before installing the bobbin case, otherwise the machine may operate if the foot switch is
depressed by mistake, which could result in injury.
4433Q
1. Pull the shuttle race cover (1) downward to open it.
2. While holding the bobbin so that the thread winds to the right, insert the bobbin into the bobbin case.
3. Pass the thread through the slot (2) and pull it out from the thread hole (3).
4. Check that the bobbin turns in the direction of the arrow when the thread is pulled.
5. Pass the thread through the lever thread hole (4), and then pull out approximately 30 mm of thread.
6. Hold the latch on the bobbin case and insert the bobbin case into the rotary hook.
2534Q
30mm
2535Q
4-5. Thread tension
4-5-1. Lower thread tension
weaker stronger
Adjust the thread tension to the weakest possible tension by
turning the thread tension nut (1) until the bobbin case will
not drop by its own weight while the thread end coming out
of the bobbin case is held.
2536Q
KE-430FX II/KE-430FS II, BE-438FX II
29
4. PREPARATION BEFORE SEWING
r
t
–
4-5-2. Upper thread tension
Stronger
Weaker
3758B
Use the digital tension or the tension nut (2) to adjust the
tension as appropriate for the material being sewn. (Refer
to "Setting the tension value".)
Furthermore, turn the tension nut (1) (sub-tension) to adjust
the upper thread trailing length to 35 - 40 mm.
Setting the tension value
<For KE-430FX II and BE-438FX II>
Press the
key (2) or the key (3) to change the
tension value (4).
* The tension value which has been set will be applied the
next time sewing is carried out.
2345B
[Reference thread tension]
KE-430FX II・FS II
Use
Medium-weight
materials (-03)
Upper thread #50 or equivalent
Lower thread #50 or equivalent
Upper thread tension
(N) [Tension value] *
1
Lower thread tension
(N)
Knitted wea
(-0K)
#60 or
equivalent
#80 or
equivalent
0.8 - 1.2
[80 - 120]*2
0.2 - 0.3 0.2 - 0.3
Ligh
-weight
materials (-01)
#60 or
equivalent
#60 or
equivalent
Heavy-weight
materials (-05)
#30 or equivalent #60 or equivalent
#50 or equivalent #60 or equivalent
1.2
1.8
2
[70 - 130]*
Pre-tension (N) 0.05 - 0.3 0.1 - 0.4
2382B
2383B
BE-438FX II
0.5 - 1.2
[50 - 150]*2
Needle DP x 5 #14 DP x 5 #9 DP x 5 #14 DP x 17NY #19 DP x 17NY #12
*1: For KE-430FX II and BE-438FX II.
*2: This is the tension value when the pretension is 0.05 N.
30 KE-430FX II/KE-430FS II, BE-438FX II
[Guide to maximum sewing speed for KE-430FX II・FS II]
4. PREPARATION BEFORE SEWING
Use
Standard hook Large hook
8 layers of denim 3,200 2,500
12 layers of denim 2,700
Ordinary materials 2,700 2,500
For knitted materials and
light-weight materials
NOTE:
The thread may break due to heat under some sewing conditions. If this happens, reduce the sewing speed, or use the
needle cooler (option).
Max. sewing speed (sti/min)
2,500
4-6. Thread nipper device <KE-430FX II -03, -0K, -01>
This is used to stop the thread from pulling out at the sewing start, and at times when skipped stitches might easily occur.
The thread nipper device operates when memory switch no. 500 is set to "ON". However, some limitations apply. Refer to
"6-2. List of memory switches" for details.
* The default setting for this memory switch is "OFF".
[Notes on use]
1. When using the thread nipper device, turn the tension
nut (1) (sub-tension) to adjust the upper thread trailing
length to 35 - 38 mm.
* Adjust the upper thread trailing length to less than 40
mm after replacing the upper thread also.
3759B
4475Q
KE-430FX II/KE-430FS II, BE-438FX II
2. If the upper thread trailing length is 40 mm or more, or if
the upper thread tension is weak and the upper thread
does not form a good seam at the first stitch, the end of
the thread that is being held by the thread nipper may
become wound around the seam.
Furthermore, if using thick thread that is #30 or higher or
if the thread trailing length is too long, an error [E691]
may occur.
In any of these cases, use scissors to cut the thread
without pulling it up too hard.
31
4. PREPARATION BEFORE SEWING
3. For sewing patterns with a short bar tack length (10 mm
or less), the end of the thread that is being held by the
(Front)
thread nipper may poke out from the seam on the
underside of the material. It is recommended that you
change the thread nipper setting to "OFF" for patterns
such as these.
4. If error [E690] or [E691] frequently occurs, remove the
needle plate and remove any thread scraps from
underneath the needle plate.
(Back)
Upper thread
4487Q
5. With the KE-430FX II, the lower thread may poke out from the underside of the material on the 2nd stitch for some types
of material and thread. If this happens, it is recommended that you use sewing patterns that are designed for use with the
thread nipper device.
Refer to "2-2. List of sewing patterns (KE-430FX II・FS II)" for details of the sewing patterns.
<Program No. Reference Table>
Specifications Standard pattern No.
For medium-weight
materials (-03)
For heavy-weight materials
(-05)
For knitted wear (-0K)
For light-weight materials (-01)
Pattern No. for
thread nipper device
1 65
4 66
5 67
8 68
1369
1570
2071
2172
2 78
3 79
6 80
1481
1682
1783
1884
1985
7 73
9 74
2275
3176
3277
32 KE-430FX II/KE-430FS II, BE-438FX II
4-7. Inserting the button (BE-438FX II)
1. Press the button clamp plate cam (1) to open the button
clamp (2).
2. Insert the button, making sure that the button is facing
the directing shown in the illustration, then release the
button clamp plate cam (1).
3760B
4-8. Adjusting the button clamp (BE-438FX II)
1. Insert the button in the button clamp, and then confirm
0.5 - 1.0mm
3761B
that the button is securely held by the clamp and that the
button can be turned by hand.
2. Loosen the shoulder screw (1), while the button is held
by the clamp. Move the adjusting plate (2) so that the
space between the adjusting plate (2) and screw (3) is
approximately 0.5 - 1.0 mm, then tighten the shoulder
screw (1).
4. PREPARATION BEFORE SEWING
4-9. Installing the accessory spring (BE-438FX II)
If you would like the button to be raised up more after it is
sewn, install the accessory spring.
1. Install the spring support (1) with the bolt (2).
2. Install the spring (3) with the washer (4) and the screw
(5).
* Adjust so that the spring (3) is in the middle of the
button.
3762B
KE-430FX II/KE-430FS II, BE-438FX II
33
5. USING THE OPERATION PANEL (BASIC OPERATIONS)
5. USING THE OPERATION PANEL
(BASIC OPERATIONS)
5-1. Name and function of each operation panel item
(1) Power indicator
Illuminates when the power is turned on.
(2) CAUTION indicator
Illuminates when an error occurs.
(3) RESET key
Used to reset errors.
(4) TEST key
Used to switch to test mode, or it can be used in combination with other keys to switch to other setting modes.
(5) TEST indicator
Illuminates when the TEST key (4) has been pressed.
(6) THREAD/CLAMP key
Used to switch to threading mode.
(7) THREAD/CLAMP indicator
This illuminates when the work clamp/button clamp is switched in threading mode or by using the SELECT key (14).
(8) PATTERN No. indicator
Illuminates when the SELECT key (14) is pressed to switch to the pattern number.
(9) X-SCALE indicator
Illuminates when the SELECT key (14) is pressed to switch to the X-scale setting.
(10) Y-SCALE indicator
Illuminates when the SELECT key (14) is pressed to switch to the Y-scale setting.
2395B
34
KE-430FX II/KE-430FS II, BE-438FX II
5. USING THE OPERATION PANEL (BASIC OPERATIONS)
(11) SPEED indicator
Illuminates when the SELECT key (14) is pressed to switch to the sewing speed setting.
(12) COUNTER indicator
Illuminates when the SELECT key (14) is pressed to switch to the lower thread or production counter setting.
(13) SPLIT No. indicator
Illuminates when the SELECT key (14) is pressed to show the split setting when split data (for specifying a pause while the
program is running) exists.
(14) SELECT key
Used to switch the menu display (pattern No., X-scale and Y-scale, sewing speed, work clamp/button clamp lift amount,
counter).
(15) PROGRAM No. display
This shows information such as program numbers.
(16) Menu display
Displays information such as menu setting values, memory switch settings and error codes.
(17) Setting keys
Used to change the value which is displayed in the PROGRAM No. display (15).
(18) Setting keys
Used to change the value which is displayed in the menu display (16).
(19) TENSION key
Used to switch to tension correction value display mode.
(20) TENSION indicator
Illuminates when in tension correction value display mode.
(21) SECTION No. display
Shows the section number when you select a pattern in which the upper thread tension changes while the pattern is being
sewn.
(22) TENSION display <For KE-430FX II and BE-438FX II>
Shows the upper thread tension value.
(23) Setting keys [+, -]
Used to change the value which is displayed in the SECTION No. display (21).
(24) Setting keys [ ]
Used to change the value which is displayed in the TENSION display (22).
(25) ENTER key
Used to accept the values which are displayed in places such as the menu display (16).
(26) Function keys [F1, F2, F3, F4]
Used to directly select program numbers and cycle program numbers.
KE-430FX II/KE-430FS II, BE-438FX II
35
5. USING THE OPERATION PANEL (BASIC OPERATIONS)
5-2. Program setting method
Patterns, X-scale, Y-scale, sewing speed, slow start pattern and upper thread tension can be recorded into programs.
When a program number is selected, the program which has been set for that number can then be sewn.
Program numbers 1 to 89 (1 to 64 for the 438FX II) have patterns preprogrammed into the program numbers with the same
numbers as the pattern numbers, and these pattern numbers cannot be changed. All items in program numbers 200 to 999 can
be set as desired by the user.
Switch to program mode.
1
While pressing the TEST key, press the SELECT key.
TEST indicator flashes, PTRN No. indicator illuminates
Select the program number that you would like to
2
change the parameters for.
For example, program
number 200
Restrictions due to program numbers selected
Program No.
1 to 89 (430FX II・FS II),
1 to 64 (438FX II)
Pattern selection
Not possible Can be recorded as desired
operation
Patterns that can be
recorded
(If program number 200 to 999 is selected)
3
Record a pattern.
Patterns with same number as program
number already recorded
・ The program number will be displayed in the
PROGRAM No. display, and “Ptno” will be displayed in
the menu display.
・ If a pattern has been recorded in a program, the number
for that pattern will be displayed in the TENSION
display, and if no pattern has been recorded, “—“ will be
displayed.
Press theorkey to set the program number that you
would like to record.
・ Program numbers 1 to 89 (1 to 64 for the 438FX II) have
the following restrictions. If you would like to create your
own programs using sewing patterns, use program
numbers 200 to 999.
2398B
200 to 999
All patterns recorded in the sewing
machine
Press the
or key to change the pattern number,
and then press the ENTER key to apply the change.
2396B 2397B
36
2400B
・ The setting ranges for other items will vary in
accordance with the pattern which is recorded, so
record the pattern first.
・ If “---“ is recorded as the pattern number, that particular
program will no longer have anything recorded.
・ If the display is flashing, it means that no pattern number
has been entered and applied. If you press the SELECT
KE-430FX II/KE-430FS II, BE-438FX II
2399B
key or the TEST key, the changes to the program
contents will be canceled.
* The speed will not be faster than the sewing speed which has been set.
* The thread nipper device will not operate for settings other than Lo8 and Lo9.
Lo1 Lo2 Lo3 Lo4 Lo5 Lo6 Lo7 Lo8 Lo9
200 200 300 400 400 400 400 800 1500
200 300 400 400 500 600 800 1200 3000
300 400 500 600 800 8001200 2500 3200
500 600 700 900 120012002500 3200 3200
(sti/min)
Lo1 Lo2 Lo3 Lo4 Lo5 Lo6 Lo7 Lo8 Lo9
200 200 300 400 400 400 800 1500 1500
200 300 400 400 600 8001200 2000 3000
300 400 500 600 80012002500 2500 3200
500 600 700 900 120025003200 3200 3200
(sti/min)
Lo1 Lo2 Lo3 Lo4 Lo5 Lo6 Lo7 Lo8 Lo9
200 200 300 300 300 400 400 400 400
200 200 300 300 400 400 400 600 900
300 300 300 400 400 400 600 900 1500
300 400 400 400 400 400 900 2000 2000
(sti/min)
2456B
Upper thread
tension
<For
KE-430FX II
and
BE-438FX II>
0 - 300
(Initial setting is “75”.)
* The later the value, the stronger the upper
thread tension.
KE-430FX II/KE-430FS II, BE-438FX II
Initial value
2409B
39
5. USING THE OPERATION PANEL (BASIC OPERATIONS)
5-3. Copying programs
To create a program with parameters that are almost exactly the same as those of another program, you can copy the original
program and change just the parts which need to be changed.
Select the program number to be used for creating
1
the new program.
For example, to create
program number 300:
Switch to program copy mode.
2
2410B
Carry out steps 1 and 2 in “5-2. Program setting method”
to select the program number to be used for creating the
new program.
• Select a program number from 200 to 999.
While pressing the F1 key (1), press the F4 key (2).
• “CoPy” will be displayed in the menu display, “PG”
will be displayed in the SECTION No. display, and the
number of the program containing the original data will
be displayed in the TENSION display.
Select the program containing the original data.
3
For example, to copy
program number 12:
Copy the program.
4
• The displays will not appear in this way unless a
program number from 200 to 999 has been selected
as the new program number.
2411B
Press the
the program containing the original data.
or key (3) to change the number of
• The value in the TENSION display will flash.
• If you press the RESET key, you can cancel the copy
operation and return to program mode.
2412B
Press the ENTER key.
• All parameters in the program will be copied, and the
sewing machine will then return to the status in step 3
of “5-2. Program setting method”.
2382B 2383B
Change the necessary parameters.
5
40
2413B
Carry out the steps from step 4 onward in “5-2. Program
setting method” to change the necessary parameters.
KE-430FX II/KE-430FS II, BE-438FX II
2414B
5. USING THE OPERATION PANEL (BASIC OPERATIONS)
5-4. Checking the sewing pattern (KE-430FX II・FS II)
Use test feed mode to check the needle movement with only the work clamp operating.
Check that the needle hole does not come out from the frame of the work clamp.
1
1. Press the TEST key.
• The number of stitches remaining until the final stitch
TEST indicator lights
For example, program
number 2
Program No. flashes Æ illuminates
Start continuous test feed mode.
2
4441Q
[Test interrupt mode]
TEST indicator flashes
[Paused sewing standby mode]
TEST indicator switches off
Once the test feed reaches the final stitch, the work
3
clamp stops moving.
2nd step
2nd step
・ If you press the
move forward by one stitch, and if you press the
clamp will move back by one stitch. (It will move quicker if you keep the
key pressed down.)
・ If you press the RESET key, the work clamp will return to the sewing
start position.
will be displayed in the menu display.
2. Press the
that you would like to check.
If the PROGRAM No. display is flashing, depress the foot
switch to the 2nd step.
・ The feed mechanism will move to the home position
and the program number will change from flashing to
illuminated.
Depress the foot switch to the 2nd step and then release it.
・ The work clamp will start moving continuously one
stitch at a time.
(The stitch number display will be decremented by
one stitch at a time.)
・ The TEST indicator will flash.
[Fast-forward test mode]
If you depress the foot switch to the 1st step while the
work clamp is moving, the feeding speed will become
faster while the foot switch is being depressed.
If you would like the work clamp to stop moving, press
the TEST key.
・ When the foot switch is depressed to the 2nd step,
the work clamp will start moving again.
If you would like sewing to resume from the point where it
was paused, press the TEST key while test feeding is
paused to switch off the TEST indicator.
・ When you depress the foot switch to the 2nd step,
sewing will start.
key (2) while in this mode, the work clamp will
Press the TEST key.
or key (1) to set the program number
2nd step
2404B 2416B 4441Q
key (3), the work
2416B
2415B 4441Q
2417B
4
TEST indicator switches off
1st step
KE-430FX II/KE-430FS II, BE-438FX II
Depress the foot switch to the 1st step.
The work clamp will rise and the preparation for sewing
will be completed.
2404B
4441Q
41
5. USING THE OPERATION PANEL (BASIC OPERATIONS)
5-5. Checking the sewing pattern (BE-438FX II)
Use test feed mode to check the needle movement with only the button clamp operating.
1
TEST indicator lights
For example, program
number 2
Press the TEST key.
・ The number of stitches remaining until the final stitch
will be displayed in the menu display.
2. Press the
or key (1) to set the program number
that you would like to check.
If the PROGRAM No. display is flashing, depress the foot
switch to the 2nd step.
・ The feed mechanism will move to the home position
and the program number will change from flashing to
illuminated.
2nd step
2416B
Program No. flashes Æ illuminates
Set the button. (Refer to “4-7. Inserting the button”.)
2
Start single-stitch test feed mode.
3
2nd step
Depress the foot switch to the 2nd step and then release
it.
・ The button clamp will move by one stitch only.
・ The TEST indicator will flash.
4441Q
After this, the button clamp will move forward by one stitch each time you depress the foot switch to the 1st step. Turn
the pulley by hand each time the button clamp moves by one stitch, and check whether the needle drops into the hole
of the button without touching the button. (If you turn the machine pulley one full rotation in the direction of sewing
machine operation at this time, the button clamp will move forward by one stitch when the needle bar is near the
needle up position.)
In addition, when the foot switch is depressed to the 2nd step, the button clamp will move continuously by 1 stitch at a time as
long as the foot switch is kept depressed.
[Paused sewing standby mode]
2nd step
If you would like sewing to resume from the point
where it was paused, press the TEST key while test
feeding is paused to switch off the TEST indicator.
・ When you depress the foot switch to the 2nd step,
TEST indicator switches off
TEST indicator flashes
・ If you press the
move forward by one stitch, and if you press the
clamp will move back by one stitch. (It will move quicker if you keep
the key pressed down.)
・ If you would like to start single-stitch test feed once more, press the
TEST key so that the TEST indicator flashes.
・ If you press the RESET key, the button clamp will return to the sewing
start position.
sewing will start.
2404B 4441Q
key (1) while in this mode, the button clamp will
key (2), the button
End test feeding.
4
Press the TEST key.
Depress the foot switch to the 1st step.
5
The button clamp will be raised and preparation for
sewing will be complete.
1st step
TEST indicator switches off
2404B
2415B
4441Q
2417B
2416B
4441Q
42
KE-430FX II/KE-430FS II, BE-438FX II
5. USING THE OPERATION PANEL (BASIC OPERATIONS)
B
B
5-6. Correcting the upper thread tension <For KE-430FX II and BE-438FX II>
The upper thread tension value is always displayed during sewing standby mode, and it can be changed at any time.
<A. Basic method of use>
The changes made at this time will be reflected in each program, so this is a useful way of changing programs while checking actual
sewing.
1. Press the
or key (1) to change the value in the
TENSION display (2).
・ The upper thread tension value which is set will be
applied the next time sewing is carried out.
2418
<B. Overall correction>
This function is useful if you would like to change the tension values for all programs at once.
1. Press the TENSION key.
・ The TENSION indicator will illuminate.
・ The overall correction value will be displayed in the
TENSION display.
2. Press the
or key (1) to change the overall
2419
correction value in the TENSION display.
・ The upper thread tension value which is set will be
applied the next time sewing is carried out.
* The upper thread tension which matches the overall
correction value which has been set for the upper thread
tension will be applied during sewing, regardless of whether
the TENSION indicator is illuminated or switched off.
(In this case, the setting value of “76” which was set in <A.
Basic method of use> has the setting value of “5” added to it
in <B. Overall correction> so that the upper thread tension
applied will be “81”. )
2382B 2383B
KE-430FX II/KE-430FS II, BE-438FX II
43
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)
B
B
B
B
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)
6-1. Setting memory switches
Change the mode to memory switch setting mode.
1
Menu indicator switches off, TEST indicator flashes
Select the memory switch that you would like to change
2
the setting for.
If you would like to display only the numbers of
memory switches that have been changed from default
settings
All indicators switch off
While pressing the TEST key, press the TENSION key.
・ The memory switch number will be displayed in the
PROGRAM No. display and the setting value for that
number will be displayed in the menu display.
Press the or key to select the memory switch
number.
While pressing the SELECT key, press the
(1).
・ The numbers of memory switches that have been
changed from default settings will appear in order.
2420B 2421BB
2422
or key
Change the memory switch parameters.
3
Apply the changed parameter setting.
4
Repeat steps 2 to 4 above to set each memory switch.
5
Exit setting mode.
6
TEST indicator switches off
44
KE-430FX II/KE-430FS II, BE-438FX II
2414B
Press the or key to change the setting value.
・ The flashing display means that the setting has not yet been
applied.
・ You can make the initial setting appear in the display by
pressing the RESET key.
Press the ENTER key.
・ The menu display will change from flashing to
illuminated, and this means that the parameter setting
has been applied.
・ If you press the
without pressing the ENTER key, you can cancel the
parameter changes.
Press the TEST key.
・ The changes will be memorized and the sewing
machine will switch to home position detection standby.
or key (1) or the TEST key
2423
2424
2404
6-2. List of memory switches
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)
No.
001
100
200
300
401
402
404
405
406
Setting
range
Work clamp/button clamp lift timing when sewing is complete
OFF Does not lift automatically.
1 Lifts at the final stitch position.
2 Lifts after moving to the home position.
Sewing start speed
The sewing speed for the first 1 - 5 stitches is set by memory switch nos. 151 -
OFF
ON
Single-stitch test feed
OFF
ON
Production counter display
ON Production counter display
Button hole distance display (*2)
ON X-scale and Y-scale will be displayed as button hole distances (mm).
X-scale/Y-scale mm display (*3)
ON Displayed as mm.
Display for program numbers 1 to 89 (1 to 64 for BE-438FX II)
OFF
ON
Cycle program numbers (C01 to C30)
OFF
ON
Program numbers switched by F keys
0
1
2
3
155.
(Refer to the Service Manual for details of memory switch nos. 151 - 155.)
The speed increases slowly.
The slow start pattern can be selected in program mode.
Test feed starts when the foot switch is depressed, and it continues automatically
until the final stitch.
Test feeding is carried out stitch by stitch when the foot switch is depressed.
In addition, when the test indicator is illuminated, test feeding will move forward
one stitch at a time when the machine pulley is turned by hand.
Program numbers 1 to 89 (1 to 64 for the BE-438FX II) are skipped during
program number selection operations so that these numbers cannot be selected.
(*4)
Program numbers 1 to 89 (1 to 64 for the BE-438FX II) are displayed during
program number selection operations.
Cycle program numbers are skipped during program number selection operations
so that these numbers cannot be selected.
Cycle program numbers are displayed during program number selection
operations.
When the F1 to F4 keys are pressed, operation switches to program numbers 1 to
4.
When the F1 to F4 keys are pressed, operation switches to program numbers 201
to 204.
When the F1 to F4 keys are pressed, operation switches to cycle program
numbers C01 to C04.
When the F1 to F4 keys are pressed, operation switches to the program number
which has been pre-assigned to the respective key.
Assignment to F1 key: Memory switch No. 407
Assignment to F2 key: Memory switch No. 408
Assignment to F3 key: Memory switch No. 409
Assignment to F4 key: Memory switch No. 410
Setting items Default
1
ON
*1
OFF OFF Lower thread counter display
OFF OFF X-scale and Y-scale will be displayed as pattern outer dimensions (mm).
OFF OFF Displayed as %.
ON
ON
0
*1: OFF for KE-430FX II・FS II and ON for BE-438FX II.
*2: The setting is enabled when memory switch No. 402 is set to “ON” and (for the BE-438FX II) when pattern No. 1 to No. 64
(button hole data) is selected.
*3: The mm display may differ slightly from the actual sewing size.
*4: If none of program numbers 200 to 999 or cycle program numbers C01 to C30 have been programmed, this setting is
invalid. (Operation occurs as though the setting is ‘ON’.)
KE-430FX II/KE-430FS II, BE-438FX II
45
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)
No. Setting range Setting items Default
Assignment to F1 key
407
408
409
410
500
*5: The setting is enabled when memory switch No. 100 is set to “ON”, the slow start pattern is set to Lo8 or Lo9 and when
the sewing speed value is set to 1500 sti/min or more.
1 to 999, C01 to C30
Assignment to F2 key
1 to 999, C01 to C30
Assignment to F3 key
1 to 999, C01 to C30
Assignment to F4 key
1 to 999, C01 to C30
Thread nipper device
ON Thread nipper device can be used. (*5)
If memory switch No. 406 = 3, operation switches to the program
number which has been set.
If memory switch No. 406 = 3, operation switches to the program
number which has been set.
If memory switch No. 406 = 3, operation switches to the program
number which has been set.
If memory switch No. 406 = 3, operation switches to the program
number which has been set.
1
2
3
4
OFF OFF Disable
46
KE-430FX II/KE-430FS II, BE-438FX II
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)
6-3. Using the lower thread counter
If you use the lower thread counter to set the number of articles which can be sewn with the amount of lower thread available,
you can stop the lower thread running out in the middle of sewing a pattern.
<Initial value setting>
Change the mode to lower thread counter setting
1
mode.
While pressing the TEST key, press the
key.
Previous initial value
TEST indicator and COUNTER indicator flash
Change the initial value.
2
Apply the changed parameter setting.
3
Ending setting mode
4
2427B
TEST indicator switches off
2414B
• The initial value which was set previously will appear in
the menu display.
Press the
• The initial value can be set from 1 ("0001") to 9999
("9999").
• If the initial value is set to "0000", the lower thread
counter will not operate.
or key (1) to set the initial value.
2425B 2426B
• If you press the RESET key, the setting will become
“0000”.
• If the value is changed, the display will change to
flashing.
Press the ENTER key.
・ The value will be applied and the display will change
to illuminated.
・ If you press the TEST key without pressing the
ENTER key, you can cancel the parameter changes.
Press the TEST key.
2404B
<Lower thread counter operation>
If the initial value is set to other than “0”, the lower thread counter will operate. (It operates even if the lower thread counter
display is not active.)
If you press the SELECT key so that the COUNTER indicator illuminates, the current counter value will be displayed in the
menu display (1).
1. Each time the sewing of a single article is completed, the
value shown in the menu display (1) is reduced by 1.
2. If the lower thread counter becomes "0000", the menu
display (1) and the COUNTER indicator (2) will flash and
a buzzer will sound. The sewing machine will not operate
during this time, even if the foot switch is depressed.
3. When you press the RESET key (3), the initial value for
the lower thread counter will appear in the menu display
(1) and sewing will be possible.
2428B
* You can press the
thread counter to the desired value. However, this value
will not be memorized as the initial value.
* If you press the RESET key (3) for 2 seconds or more,
you can return the lower thread counter to its initial value
even if the current value is not “0000”.
or key (4) to set the lower
KE-430FX II/KE-430FS II, BE-438FX II
47
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)
6-4. Using the production counter
<Setting the counter value>
Change the mode to production counter setting
1
mode.
While pressing the TEST key, press the
key.
SPEED indicator illuminates
TEST indicator and COUNTER indicator illuminate
Change the counter value.
2
Apply the changed parameter setting.
3
Ending setting mode
4
For example,
1,234,500.
2414B
・ The 7 digits of the current counter value will be
displayed in the PROGRAM No. display and the
menu display.
Press the
• The counter value can be set from [000][0000] to
[999][9999].
• If you press the RESET key during setting mode, the
value will become [000][0000].
• If the value is changed, the display will change to
flashing.
Press the ENTER key.
・ The value will be applied and the display will change
to illuminated.
・ If you press the TEST key without pressing the
ENTER key, you can cancel the parameter changes.
Press the TEST key.
or key (1) to set the counter value.
2429B 2430B
2431B
TEST indicator switches off
2404B
<Production counter operation>
The production counter is always operating. (It operates even if the production counter display is not active.) If you press the SELECT
key so that the COUNTER indicator illuminates when memory switch No. 300 is ‘ON’, the current production counter value will be
displayed in the menu display (1) instead of the lower thread counter value. (The SPEED indicator will also illuminate at this time.)
1. The counter is incremented by 1 each time one sewing
operation is complete. If the production counter display is
active, the number being displayed in the menu display (1)
will be incremented by 1.
* If you would like the digits to be displayed in all columns,
use the temporary display function described below.
* If you press the RESET key (2) for 2 seconds or more, the
counter value can be reset to [0000].
Temporary display function
・ While pressing the ENTER key, press the F1 key. The
production counter will be displayed as 7 digits while the
keys are being pressed.
・ While pressing the ENTER key, press the F2 key. The
lower thread counter will be displayed while the keys are
being pressed.
48
2432B
KE-430FX II/KE-430FS II, BE-438FX II
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)
6-5. Using cycle programs
Sewing patterns that have been recorded in user programs can be recorded in up to 30 cycle programs (C01 to C30).
One cycle program can contain up to a maximum of 50 steps (St1 to St50).
When sewing the sewing patterns in a certain order, it can be useful to record them in a cycle program beforehand.
<Recording method>
Switch to cycle program recording mode.
1
2435B
Select a cycle program number.
2
TEST indicator flashes
While pressing the TEST key, press the
・ The cycle program number (C01 to C30) will be
displayed in the PROGRAM No. display, the step
number (St1 to St50) will be displayed in the menu
display, and the program number will be displayed in
the TENSION display.
・ If no program has been recorded for a step, ‘---‘ will
be displayed for that step.
Press the or key to select the cycle program
number that you would like to use.
• ‘St 1’ will be displayed.
key (1).
2436B 2382B
2437B
Select the program number to be recorded in step 1.
3
Apply the program setting.
4
TEST indicator flashes
TEST indicator flashes
Press the
number to be recorded in the TENSION display (3).
・ If the value is changed, the display will change to
flashing.
・ To cancel the recording, keep the RESET key
pressed for more than 2 seconds so that ‘---‘ is
displayed.
Press the ENTER key.
・ The display will change from flashing to illuminated,
and this means that the setting has been applied.
・ If you press the
the TEST key without pressing the ENTER key, you
can cancel the parameter changes.
or key (2) to display the program
2438B 2382B 2383B
/ keys (4), the / keys (5) or
2414B
KE-430FX II/KE-430FS II, BE-438FX II
49
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)
Repeat steps 3 and 4 above to record step 2 and
5
subsequent steps in the same way.
If you would like to continue setting another cycle program, repeat steps 2 to 5 above.
6
End cycle program recording mode.
7
2404B
TEST indicator switches off
Press the
you would like to record in the menu display (6).
Press the TEST key.
This completes the recording of cycle programs.
or key (5) to display the step number
50
KE-430FX II/KE-430FS II, BE-438FX II
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)
<Method of use>
When a cycle program has been recorded, the cycle program number is displayed after the program number when a program
number is selected.
1. Press the or key (1) to select the cycle program
number that you would like to use.
・ The order of displays is as follows.
Program No.
(1 – 89 (*1) )
key
key key
key key
key
Program parameter
for step 1
Program No.
(200 – 999 (*2) )
Cycle program No.
(C01 – C30 (*2) )
*1: 1 to 64 for the 438FX II
Step No.
*2: Only the numbers which have been recorded are
displayed.
・ The cycle program number is displayed in the
PROGRAM No. display, the step number is displayed in
the TENSION display, and the parameter for that step is
displayed in the menu display (2).
2439B
・ When you press the SELECT key, the menu display (2)
and the menu indicator (3) are switched, so that you can
check the program parameters for that step.
2. Carry out sewing while referring to “7. Sewing”.
・ The recorded programs are carried out in the order of
the steps, and when the last step is completed, sewing
returns to the first step.
・ If you press the
or key, you can return to the
previous step or skip to the next step respectively. (You
2440B
do not need to carry out home position detection again.)
2382B 2383B
(Continued on next page)
KE-430FX II/KE-430FS II, BE-438FX II
51
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)
The range of programs that can be selected and the order of the displays may change depending on the memory switch
settings.
Memory switch
Range of programs and display order
Program No.
200 – 999 (*2)
Program No.
200 – 999 (*2)
Program No.
200 – 999 (*2)
Program No.
200 – 999 (*2)
(Initial setting)
Program No.
1 – 89 (*1)
Program No.
1 – 89 (*1)
Program No. (*3)
1 – 89 (*1)
or
*1: 1 to 64 for the 438FX II
*2: Only the numbers which have been recorded are displayed.
*3: Only when program numbers 200 to 999 have not been recorded.
Cycle program No.
C01 – C30 (*2)
Cycle program No.
C01 – C30 (*2)
52
KE-430FX II/KE-430FS II, BE-438FX II
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)
6-6. Direct selection
You can use the function keys to directly select program numbers and cycle program numbers. However, if a program
number has nothing recorded, it will not be displayed.
<Function keys>
2441B
The parameters which can be selected will vary depending on the memory switch settings.
406=0 (Initial setting)
Program No.1
Program No.2
2442B
2443B
Program No.3
2444B
406=1
Program No.201
Program No.202
2442B
2443B
Program No.203
2444B
406=2
Program No.C01
Program No.C02
2442B
2443B
Program No.C03
2444B
Program No.4
2445B
Program No.204
2445B
Program No.C04
2445B
406=3
Item specified by memory
switch No.407
2442B
Item specified by memory
switch No.408
2443B
Item specified by memory
switch No.409
2444B
Item specified by memory
switch No.410
2445B
KE-430FX II/KE-430FS II, BE-438FX II
53
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)
M
B
6-7. Resetting all settings to their defaults
If the sewing machine stops operating normally, the cause may be that an incorrect setting may have been made for the memory
data by means of memory switches, for instance. In such cases, it may be possible to restore normal operation by following the
steps given below to initialize the memory setting data.
Change to initialization mode.
1
2446
(While pressing the RESET key, press the power ON
switch.)
[Reference]
If the
as shown below.
* For details on initialization items other than “init ALL”, refer to the service manual.
2
3
‘1’ will be displayed in the PROGRAM No. display, and ‘ALL’ will
be displayed in the menu display.
or key (1) is pressed at this time, you can select the items to be initialized
PROGRAM
No. display
1 「ALL」
2 *1
3 *2 Program numbers 200 to 999 are cleared.
4 「PALL 」 All programs are cleared or initialized.
5
6 「MEM」Memory switches are initialized.
7 「PDAT」 Additional patterns are cleared.
*1: P001 and P199 are displayed alternately.
*2: P200 and P999 are displayed alternately.
*3: Additional patterns will also be cleared, so check that a backup exists before
clearing them.
Press the ENTER key for two seconds or more.
• The menu display will change to illuminated and initialization will then be
complete.
Press the TEST key.
Main displayInitialization item
All data in memory is cleared or initialized.
(*3)
The values for each parameter in program
No. 1 to 199 set as described in “5-2.
Program setting method” are initialized.
「CYCL」
Cycle programs are cleared.
2447B 2138M 2139
2448B
2404B
54
KE-430FX II/KE-430FS II, BE-438FX II
7. SEWING
Turn off the power switch at the following times, otherwise the machine may operate if the foot switch is depressed
by mistake, which could result in injury.
• When replacing the needle and bobbin
• When not using the machine and when leaving the machine unattended
Use threading mode or turn off the power first in order to carry out threading.
Do not touch any of the moving parts or press any objects against the machine while sewing, as this may result in
personal injury or damage to the machine.
7-1. Sewing
1st step
2nd step
CAUTION
2342B
4441Q
2384B
1. Turn on the power switch.
2. Press the
program to be sewn.
3. Depress the foot switch to the 2nd step.
The feed mechanism will move to the home position.
4. Set the material under the work clamp (2).
(For the BE-438FX II, insert the button and place the
material under the button clamp (3). (Refer to “4-7.
Inserting the button”.)
5. Depress the foot switch to the 1st step.
The work clamp (2) / button clamp (3) will be lowered.
6. Depress the foot switch to the 2nd step.
The sewing machine will start sewing.
7. Once sewing is completed and the thread has been
trimmed, the work clamp (2) / button clamp (3) will rise.
7. SEWING
or key (1) to select the number for the
4116M
KE-430FX II/KE-430FS II, BE-438FX II55
7. SEWING
7-2. Changing sewing conditions
“X-scale”, “Y-scale” and “Sewing speed” can be changed even during sewing standby.
The changes made at this time will be reflected in the program, so this is a useful way of changing programs while checking
actual sewing.
<Changing X-scale and Y-scale>
2450B
1. Press the SELECT key (1) so that the X-SCALE
indicator (2) (for X-scale setting) or the Y-SCALE
indicator (3) (for Y-scale setting) is illuminated.
・ The setting value (%) will be displayed in the menu
display (4).
2. Press the
・ The program number in the PROGRAM No. display
(6) will flash.
3. Depress the foot switch to the 2nd step.
・ The work clamp will move to the sewing start
position and the program number will change from
flashing to illuminated.
NOTE:
Once the setting is complete, be sure to carry out the
steps in "5-4./5-5. Checking the sewing pattern" to check
that the needle drop position is correct.
or key (5) to set the scale (20 - 200).
<Changing the sewing speed>
<Changing slow start pattern>
2451B
1. Press the SELECT key (1) so that the SPEED indicator
(2) is illuminated.
・ The setting value (sti/min) will be displayed in the
menu display (3).
2. Press the
(Sewing speed values: KE-430FX II・FS II: 200 to 3200;
BE-438FX II: 200 to 2700)
* This setting cannot be made when memory switch No.
100 is set to “OFF”.
1. While the SPEED indicator (1) is illuminated and the
sewing speed is being displayed in the menu display (2),
press the SELECT key (3).
• The setting value will be displayed in the menu display
(2).
2. Press the
* Refer to the list of parameters in “5-2. Program setting
method”.
or key (4) to set the sewing speed.
or key (4) to set the slow start pattern.
2460B
KE-430FX II/KE-430FS II, BE-438FX II 56
8. MAINTENANCE
CAUTION
Turn off the power switch before carrying out cleaning, otherwise the machine may operate if the foot switch is
pressed by mistake, which could result in injury.
Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get
into your eyes or onto your skin, otherwise inflammation can result.
Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and
diarrhea. Keep the oil out of the reach of children.
8-1. Cleaning the rotary hook
4461Q
8. MAINTENANCE
1. Pull the shuttle race cover downward to open it, and then
remove the bobbin case.
4462Q
4482Q
2. Open the setting claw (1) in the direction indicated by the
arrow, and then remove the shuttle race base (2) and the
shuttle hook (3).
3. Clean all the dust and lint from around the driver (4), the
top of the shuttle race thread guide and the shuttle race.
KE-430FX II/KE-430FS II, BE-438FX II
57
8. MAINTENANCE
8-2. Cleaning the control box air inlet ports
8-3. Draining the oil
Use a vacuum cleaner to clean the filters in the air inlet
ports (2) of the control box (1) at least once a month.
2309B
1. Remove and empty the oiler (1) whenever it is full.
2. After emptying the oiler (1), screw it back into its original
position.
* Check that the felt (2) is inside the oiler (1).
8-4. Cleaning the eye guard
8-5. Checking the needle
2457B
Wipe the eye guard clean with a soft cloth.
NOTE:
Do not use solvents such as kerosene or thinner to clean
the eye guard.
2310B
Always check that the tip of the needle is not broken and
also the needle is not bent before starting sewing.
8-6. Lubrication
Carry out the lubrication referring to “3-12. Lubrication”.
Periodically apply grease to the sliding parts of the work
clamp (1) and the work clamp arm (2).
NOTE:
After replacing the work clamp (1), be sure to apply
grease before using it.
* It is recommended that you use commercially-available
NIPPON OIL CORPORATION Powernoc WB 2 grease
for the work clamp (1).
8-8. Applying grease (When “GREASEUP” appears)
If “GrE” and “AS.UP" flash on the PROGRAM No. display (1) and the menu display (2) respectively, and a buzzer sounds
when the power switch is turned on, it means that grease needs to be applied. (The sewing machine will not operate at this
time, even if the foot switch is depressed.)
Apply grease as required, while referring to the following for details.
<To continue sewing temporarily without applying grease>
1. Press the RESET key (3).
2. The PROGRAM No. display (1) and the menu display (2) will change to the normal displays, and sewing can be carried
out by depressing the foot switch.
NOTE:
• "GrE" and "AS.UP" will continue to be displayed each time the power is turned on until grease is applied and the
notification is reset by carrying out the procedure on page 62.
• If you continue to use the sewing machine after the “GrE” and “AS.UP" notification appears without applying grease
(or without carrying out the reset procedure), “E100” will appear after a certain period of time and the sewing
machine will be forcibly prevented from operating for safety reasons.
If this happens, apply grease and carry out the reset procedure.
* If you continue to use the sewing machine after carrying out the reset procedure but without applying grease,
problems with the sewing machine may result.
KE-430FX II/KE-430FS II, BE-438FX II
2343B
59
8. MAINTENANCE
<Applying grease>
Use Brother-specified “Grease unit (Except for Europe: SB1275-201, for Europe: SB6660-101)”.
1. Removing the grease assembly
1. Remove the four screws (1), and
then remove the rear cover (2).
2. Remove the grease assembly (3)
from inside the rear cover (2).
3763B
2. Using the tube
Use in “B. Applying grease to the rock gear shaft F”.
2313B
60
KE-430FX II/KE-430FS II, BE-438FX II
3. Applying grease
<A. Applying grease to the eccentric wheel>
1. Turn off the power switch.
2. Remove the four screws (1), and then remove the top cover (2).
3. Remove the screw (4) of the eccentric wheel (3).
4. Insert the grease nozzle into the hole in the eccentric
5. Check that enough grease has been applied so that it is
6. Install the screw (4).
7. Remove the bolt (6) from the eccentric wheel (3).
8. Loosen the two bolts (7), and slide the grease cover (8) in
9. Wipe away any grease which is remaining inside the
10. Insert the grease nozzle into the holes in the eccentric
3178B
11. Check that enough grease has been applied so that it is
12. Return the grease cover (8) to its original position, and
NOTE:
Securely tighten the bolt (6) and the two bolts (7). If any of
these bolts are loose, grease may leak out and problems
with sewing machine operation such as seizing may
occur.
8. MAINTENANCE
3764B
* Be careful not to drop the screw (4) when removing it.
wheel (3) as far as it will go, and then apply grease while
turning the upper shaft (5) in the direction of the arrow.
* Apply enough grease to make sure that it does not miss
any parts.
overflowing slightly from the edges.
* Be careful not to drop the bolt (6) when removing it.
the direction of the arrow.
* To prevent the bolts (7) from being dropped, do not
remove them completely.
eccentric wheel (3).
wheel (3), and apply the grease.
* Insert the grease nozzle into both holes to apply the
grease, in order to make sure that the grease is
applied evenly without missing any parts.
overflowing slightly from the edges.
then secure it by tightening the bolt (6) and the two bolts
(7).
Grease
3179B
KE-430FX II/KE-430FS II, BE-438FX II
61
8. MAINTENANCE
<B. Applying grease to rock gear shaft F>
1. Tilt back the machine head.
2. Loosen the two screws (1), and then remove grease
holder F (2). (Never loosen any screws other than the
screw (1). If any other screws are loosened, the grease
will leak out and this may cause problems with the
sewing machine such as seizure.)
3. Turn the pulley to move rock gear shaft F (3) to the most
forward position.
4. Remove the bolt (4) and the washer (5).
5. Insert the grease nozzle (6) into the hole in rock gear
shaft F (3) as far as it will go as shown in the illustration,
and apply grease until it is overflowing slightly from the
edges.
6. Pull out the grease nozzle (6) while adding the grease.
7. Install the bolt (4) and the washer (5).
8. Install grease holder F (2) with the two screws (1).
9. Install the rear cover with the four screws.
NOTE:
• Once the grease tube has been opened, remove the nozzle from the tube, attach the cap securely and store the tube in a
cool dark place.
• The grease should be used as quickly as possible.
• When using the grease again, remove any old grease from inside the nozzle first.
(Store the tube away carefully once the tube has been opened, otherwise the grease remaining inside the tube may
deteriorate, and this may affect its lubricating performance.)
<Resetting the grease up counter>
3765B
Once the grease has been applied, follow the procedure
below to reset the cumulative number of stitches between
grease applications.
1. While pressing the F1 key (1), turn on the power switch.
“GCt” will appear in the PROGRAM No. display (2),
and the cumulative number of stitches until grease
should be applied will be displayed in the total of six
columns in the section No. display (3) and the menu
display (4) in units of 10,000 stitches.
2. Press and hold the RESET key (5) for 2 seconds or
more. (This completes the reset procedure.)
3. When you press the TEST key (6), the displays will
return to their normal displays.
62
2344B
KE-430FX II/KE-430FS II, BE-438FX II
r
y
–
9. STANDARD ADJUSTMENT
CAUTION
9. STANDARD ADJUSTMENT
Maintenance and inspection of the sewing machine
should only be carried out by a qualified technician.
Ask your Brother dealer or a qualified electrician to
carry out any maintenance and inspection of the
electrical system.
Turn off the power switch and disconnect the power
cord from the wall outlet at the following times,
otherwise the machine may operate if the foot
switch is depressed by mistake, which could result
in injury.
• When carrying out inspection, adjustment and
maintenance
• When replacing consumable parts such as the
rotary hook
Hold the machine head with both hands when tilting
it back or returning it to its original position.
Furthermore, after tilting back the machine head, do
not push the face plate side or the pulley side from
above, as this could cause the machine head to
topple over, which may result in personal injury or
damage to the machine.
If the power switch needs to be left on when carrying
out some adjustment, be extremely careful to
observe all safety precautions.
If any safety devices have been removed, be
absolutely sure to re-install them to their original
positions and check that they operate correctly
before using the machine.
9-1. Standard thread tension
KE-430FX II・FS II
Use
Upper thread
Lower thread
Upper thread tension (N)
[Tension value] *
Lower thread tension (N) 0.2 - 0.3 0.2 - 0.3
1
Medium-weight
materials (-03)
#50 or
equivalent
#50 or
equivalent
Knitted wea
(-0K)
#60 or
equivalent
#80 or
equivalent
0.8 - 1.2
[80 - 120]*2
Light-weight
materials (-01)
#60 or
equivalent
#60 or
equivalent
-weight
Heav
materials (-05)
#30 or equivalent #60 or equivalent
#50 or equivalent #60 or equivalent
1.8
1.2
[70 - 130]*
2
BE-438FX II
0.5 - 1.2
[50 - 150]*2
Pre-tension (N) 0.05 - 0.3 0.1 - 0.4
Needle DP x 5 #14 DP x 5 #9 DP x 5 #14 DP x 17NY #19 DP x 17NY #12
*1: For KE-430FX II and BE-438FX II.
*2: This is the tension value when the pretension is 0.05 N.
9-1-1. Upper and lower thread tension
2318B
KE-430FX II/KE-430FS II, BE-438FX II
2319B
63
9. STANDARD ADJUSTMENT
r
y
9-1-2. Thread take-up spring
KE-430FX II・FS II
Use
Thread take-up spring
height (mm)
Thread take-up spring
tension (N)
Medium-weight
materials (-03)
Knitted wea
(-0K)
Light-weight
materials (-01)
-weight
Heav
materials (-05)
6 - 11 6 - 11
0.2 - 0.4 0.6 - 1.0 0.15 – 0.35
<Thread take-up spring height>
Lower Higher
Loosen the set screw (1) and turn the tensioner body to
adjust the thread take-up spring height.
2320B
<Thread take-up spring tension>
Weaker
Adjust by turning the shaft (2) with a screwdriver.
* When the spring height (stroke) is great or the spring tension is insufficient, it may cause the thread end length to vary after
thread trimming.
BE-438FX II
Stronger
2321B
64
KE-430FX II/KE-430FS II, BE-438FX II
R
9-1-3. Arm thread guide C
eference
line
9-1-4. Needle bar bush thread guide D
2322B
2325B
9. STANDARD ADJUSTMENT
The standard position of arm thread guide C (1) is when the
screw (2) is aligned with the position of the reference line.
To adjust the position, loosen the screw (2) and then move
arm thread guide C (1).
・ When sewing heavy-weight materials, move arm thread
guide C (1) to the left. (The thread take-up amount will
increase.)
・ When sewing light-weight materials, move arm thread
guide C (1) to the right. (The thread take-up amount will
decrease.)
Check that needle bar bush thread guide D (1) is at the
middle of the needle bar (2).
NOTE:
If needle bar bush thread guide D (1) is not in the correct
position, the thread may pull out or skipped stitches may
occur.
9-2. Adjusting the needle bar height
2326B
1. Loosen the two screws (1), and then remove the eye guard assembly (2).
2. Turn the pulley to move the needle bar to the lowest position. Then remove the rubber cap (4), loosen the screw (5) and
then move the needle bar up or down to adjust so that the second reference line from the bottom of the needle bar
(reference line A) is aligned with the lower edge of the needle bar bush (3).
* If using a DP x 5 needle, use the highest reference line (reference line a).
2327B
KE-430FX II/KE-430FS II, BE-438FX II
65
9. STANDARD ADJUSTMENT
9-3. Adjusting the needle bar lift amount and the driver needle guard
2544Q
Middle of the needle
Tip
0135Q
1. Turn the machine pulley to raise the needle bar from the lowest position until the lowest reference line on the needle bar
(reference line B) is aligned with the lower edge of the needle bar bush (1).
* If using a DP x 5 needle, align with reference line b which is the second reference line from the top.
NOTE:
Check that the wiper and the needle do not touch when lowering the needle bar. If the wiper is in a position where it
will touch the needle, move the wiper to the right by hand so that it does not touch the needle.
2. Loosen the bolt (2).
3. Move the driver (4) to adjust so that the tip of the rotary hook is aligned with the middle of the needle and so that the
driver needle guard (3) is touching the needle, and then tighten the bolt (2).
NOTE:
If the needle contact pressure is too great, skipped stitches may occur. On the other hand, if the driver needle guard
(1) is not touching the needle, the tip of the inner rotary hook will obstruct the needle, resulting in an excessively high
amount of friction.
2499B
2500B
9-4. Adjusting the needle clearance
0138Q
Turn the pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw (1) and turn the
eccentric shaft (2) to adjust so that the clearance between the needle and the rotary hook is 0.01 - 0.08 mm.
66
0.01 - 0.08mm
2328B
KE-430FX II/KE-430FS II, BE-438FX II
9. STANDARD ADJUSTMENT
9-5. Adjusting the shuttle race thread guide
Install the shuttle race thread guide (1) by pushing it in the direction of the arrow so that the needle groove is aligned with
the center of the needle plate hole.
NOTE:
If the shuttle race thread guide is in the wrong position, thread breakages, soiled thread or thread entanglements may
occur.
The position of the shuttle race thread guide is adjusted at the time of shipment from the factory. It should not be
changed if at all possible.
2329B
9-6. Rotary hook lubrication amount
1. Tilt back the machine head.
2. Loosen the two bolts (1), and then adjust by moving the oil tank assembly (2) up or down.
* The standard position is when the centers of the two bolts (1) are aligned with the reference line on the oil tank plate
(3).
More
oil
Less
oil
2330B
KE-430FX II/KE-430FS II, BE-438FX II
67
9. STANDARD ADJUSTMENT
9-7. Replacing the movable knife and fixed knife
1. Open the shuttle race cover, remove the two screws (1), and then remove the feed plate (2).
2. Remove the two screws (3) and the two flat screws (4), and then remove the needle plate (5).
3. Remove the movable knife (6) and the fixed knife (7).
-5 specifications : 0.3 mm
Except -5 specifications : 0.1 mm
3766B
4. Install new fixed knife (7) in the position shown in the illustration.
5. Apply grease to the outside of the collar (8) and the shoulder screw (9), and then install the new movable knife (6) together
with the thrust washer (10) and movable knife spacer (11).
6. Check that the movable knife (6) and the fixed knife (7) cut the thread cleanly.
7. Apply grease to the pin (12) of the movable knife, and then insert it into the hole in the movable knife connecting plate (13).
Then, while placing the pin (15) of thread nipper connecting plate F into the hole in thread nipper D (14), install the needle
plate (5).
8. Check that the center of the needle hole and the needle are aligned.
Select an accessory movable knife spacer (11) which allows
the movable knife (6) to cross over the fixed knife (7) with a
force that is as gentle as possible while still allowing the
thread to be trimmed.
* Move the movable knife (6) as shown in the illustration
and check that it trims the thread cleanly.
NOTE:
If the movable knife spacer (11) is too thick, it will not be
possible to trim the thread.
2331B
2333B
68
2334B
KE-430FX II/KE-430FS II, BE-438FX II
9. STANDARD ADJUSTMENT
9-8. Adjusting the work clamp lift amount (KE-430FX II・FS II)
Adjust so that the actual maximum lift amount for the work clamp is 17 mm above the top of the needle plate when the
maximum work clamp height has been set to 17 mm using the operation panel.
1. Loosen the bolt (1) and move the work clamp arm lever plate (2) up or down to adjust.
2. Apply grease to the bottom of the work clamp lifter plate (3), to the top of the work clamp arm lever plate (2) and to the
sliding part of the work clamp (4) (grease is already applied at the time of shipment), and check that the movement
becomes easier.
2385B
9-9. Adjusting the button clamp lift amount (BE-438FX II)
Adjust so that the actual maximum lift amount for the button clamp is 13 mm above the top of the needle plate when the
maximum button clamp height has been set to 13 mm using the operation panel.
Remove the spring (1), loosen the set screw (2) and adjust the button clamp holder hook (3) by moving it up and down.
* If the button clamp lift amount is too large, the button clamp will not be raised.
2386B
KE-430FX II/KE-430FS II, BE-438FX II
69
9. STANDARD ADJUSTMENT
9-10. Adjusting the holding pressure (BE-438FX II)
Loosen the nut (1) and turn the nut (2) to the point where it
is just tight enough that the material will not slip out of place
when it is slightly pulled (keep pressure as slight as
possible).
2387B
9-11. Adjusting the position of the button clamp (BE-438FX II)
1. Loosen the two bolts (1) and adjust the button clamp
base (2) by moving it.
2. Carry out test feeding to check that the needle will go
through the button hole with no contact.
2388B
9-12. Adjusting the thread wiper
<Thread wiper height adjustment>
Approx. 2 mm
2338B
70
KE-430FX II/KE-430FS II, BE-438FX II
2335B
Loosen the two screws (2) and adjust
the thread wiper (1) so that the
clearance between the top of the
thread wiper (1) and the needle point
is approximately 2 mm when the
thread wiper (1) is aligned with the
center of the needle.
NOTE:
Check that the needle bar thread
guide (3) and the thread wiper base
shaft (4) are not touching at this
time.
A
App
<Thread wiper racking width adjustment>
pprox. 25 mm
2336B
9-13. Checking the machine head switch
rox. 20 mm
4683Q
9. STANDARD ADJUSTMENT
1. Remove the side cover.
2. Loosen the set screw (1) and
adjust so that the distance from
the thread wiper to the center of
the needle is as shown in the
illustration.
1. Turn on the power switch.
2. Check that no error numbers appear on the operation
panel.
<If error [E050], [E051] or [E055] is displayed>
If the machine head switch (1) is not turned on, error [E050],
[E051] or [E055] will occur.
Use the screw (2) to adjust the installation position of the
machine head switch as shown in the illustration.
2295B
KE-430FX II/KE-430FS II, BE-438FX II
71
10. TABLE OF ERROR CODES
10. TABLE OF ERROR CODES
DANGER
Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet
before opening the face plate of the control box. Touching areas where high voltages are present can result in
severe injury.
If a malfunction should occur with the sewing machine, a buzzer will sound and an error code will appear in the display
window. Follow the remedy procedure to eliminate the cause of the problem.
Warnings displayed as symbols
Code Cause and remedy
CLdn
UP
Switch-related errors
Code Cause and remedy
E010
E011
E012
E015
E016
E025
E035
E050
E051
E055
E065
The sewing machine started when the work clamp/button clamp was not lowered.
First lower the work clamp/button clamp.
The needle bar is not in the needle up stop position.
Turn the pulley until this error display disappears.
The STOP switch was pressed.
Press the RESET key to clear the error.
The STOP switch was pressed.
Press the RESET key to clear the error.
You can press the
The STOP switch was pressed.
Press the RESET key to clear the error, and then depress the foot switch to the 2nd step to carry out home
position detection.
The STOP switch was still being pressed when the power was turned on, or there is a problem with the STOP
switch connection.
Turn off the power, and then check that connector P9 on the main P.C. board is properly connected.
Problem with the STOP switch connection when the power was turned on.
Turn off the power, and then check that connector P9 on the main P.C. board is properly connected.
The foot switch was being depressed to the 2nd step when the power was turned on.
(Start switch for a two-pedal foot switch).
Turn off the power and check the foot switch.
The foot switch was being depressed to the 1st step when the power was turned on.
(Work clamp switch for a two-pedal foot switch).
Turn off the power and check the foot switch.
Machine head tilting was detected after the power was turned on.
Turn off the power, and then return the machine head to its original position.
Check that connector P14 on the main P.C. board is properly connected.
Machine head tilting was detected while the sewing machine was operating.
Turn off the power, and then check that connector P14 on the main P.C. board is properly connected.
Machine head tilting was detected when the power was turned on.
Turn off the power, and then return the machine head to its original position.
Check that connector P14 on the main P.C. board is properly connected.
An operation panel key was still being pressed when the power was turned on, or key is faulty.
Turn off the power and check the operation panel.
key to move the work clamp so that you can continue sewing.
72
KE-430FX II/KE-430FS II, BE-438FX II
r
X
Y
Y
Y
Y
Upper shaft motor-related errors
Code Cause and remedy
a certain period after the “GREASEUP” notification appears
E100
Sewing machine has continued to be used fo
without the grease being applied (without the reset procedure being carried out).
Apply grease and then carry out the reset procedure.
Upper shaft did not stop at the needle up stop position when the sewing machine stopped.
E111
Turn off the power, and then check that there are no problems with the thread trimming mechanism and the
machine motor mechanism.
E121
Thread trimming was not completed.
Turn off the power, and then check if the cutting edges of the fixed knife and movable knife are damaged or worn.
Sewing machine motor stopped due to a problem, or synchronizer is faulty.
E130
Turn off the power, and then turn the machine pulley to check if the machine has locked up.
Check that connector P11 on the power supply motor P.C. board and the 4-pin upper shaft motor connector are
properly connected.
E131
E132
E133
Synchronizer is not connected correctly.
Turn off the power, and then check that connector P11 on the motor P.C. board is properly connected.
Problem detected with sewing machine motor operation.
Turn off the power, and then check that connector P11 on the motor P.C. board is properly connected.
Sewing machine motor stopping position is incorrect.
Turn off the power, and then check that connector P11 on the motor P.C. board is properly connected.
Sewing machine motor is overheating, or temperature sensor is faulty.
E150
Turn off the power, and then check the sewing machine motor.
(When sewing data with a small number of stitches (15 stitches or less) is sewn repeatedly (short cycle
operation), the upper shaft motor may overheat and the “E150” error code may be generated.)
Feed mechanism-related errors
Code Cause and remedy
E200
E201
E204
E205
E206
E210
E211
E214
E215
E216
X feed motor home position cannot be detected. Problem with X feed motor or poor X encoder connection.
Turn off the power, and then check that connectors P17 and P21 on the main P.C. board are properly connected.
X feed motor stopped abnormally.
Turn off the power and check that there is no problem with the X feed direction.
X feed motor stopped abnormally during sewing.
Turn off the power and check that there is no problem with the X feed direction.
-feed motor stopped due to a problem while moving to the sewing start position.
Turn off the power and check that there is no problem with the X feed direction.
X feed motor stopped abnormally during test feeding.
Turn off the power and check that there is no problem with the X feed direction.
Y feed motor home position cannot be detected. Problem with Y feed motor or poor Y encoder connection.
Turn off the power, and then check that connectors P18 and P22 on the main P.C. board are properly connected.
feed motor stopped abnormally.
Turn off the power and check that there is no problem with the Y feed direction.
feed motor stopped abnormally during sewing.
Turn off the power and check that there is no problem with the Y feed direction.
-feed motor stopped due to a problem while moving to the sewing start position.
Turn off the power and check that there is no problem with the Y feed direction.
feed motor stopped abnormally during test feeding.
Turn off the power and check that there is no problem with the Y feed direction.
Work clamp-related errors
Code Cause and remedy
Work clamp home position cannot be detected. Problem with work clamp motor or poor work clamp encoder
E300
connection.
Turn off the power, and then check that connectors P19 and P23 on the main P.C. board are properly connected.
E301
Work clamp/button clamp raised or lowered position cannot be detected.
Turn off the power, and then check that there is no problem with the vertical work clamp/button clamp position.
10. TABLE OF ERROR CODES
KE-430FX II/KE-430FS II, BE-438FX II
73
10. TABLE OF ERROR CODES
r
Communication and memory-related errors
Code Cause and remedy
Communication error was detected between the main P.C. board and the panel P.C. board when the power was
E400
turned on.
Turn off the power, and then check that connector P1 on the panel P.C. board and connector P3 on the motor
P.C. board are properly connected.
Communication error was detected between the main P.C. board and the motor P.C. board when the power was
E401
turned on.
Turn off the power, and then check that connector P5 on the main P.C. board and connector P2 on the motor P.C.
board are properly connected.
E410
E411
E420
Communication error was detected between main P.C. board and panel P.C. board.
Turn off the power, and then turn it back on again.
Communication error was detected between main P.C. board and motor P.C. board.
Turn off the power, and then turn it back on again.
No media is inserted.
Press the RESET key to clear the error.
Data contents are incorrect and cannot be used, or no data.
E421
Press the RESET key to clear the error.
Check that data for this pattern number is present in the media.
Error occurred while reading from media.
E422
Press the RESET key to clear the error.
Check the data in the media.
Insufficient space in media.
E424
Press the RESET key to clear the error.
Use different media.
Error occurred while reading from media.
E425
Press the RESET key to clear the error.
Use the specified type of media.
Check if the media is write-protected and if it has enough free space.
ogram has been erased.
E427
A pattern registered in a cycle p
Press the RESET key to clear the error.
Re-register the cycle program, or add the pattern.
A pattern registered in a program has been erased.
E428
Press the RESET key to clear the error.
Re-register the program, or add the pattern.
E430
E440
E450
E451
E452
Data cannot be backed up to main P.C. board.
Turn off the power, and then turn it back on again.
Data memory error on main P.C. board.
Turn off the power, and then turn it back on again.
Model selection has not been loaded from the machine head memory.
Turn off the power and check that connector P16 on the power supply motor P.C. board is properly connected.
Data cannot be backed up to machine head memory.
Turn off the power, and then turn it back on again.
Machine head memory is not connected.
Turn off the power, and then check that connector P16 on the main P.C. board is properly connected.
Internal memory is full and copying is not possible.
E474
Press the RESET key to clear the error.
Clear any unnecessary additional patterns.
74
KE-430FX II/KE-430FS II, BE-438FX II
r
Data editing-related errors
Code Cause and remedy
The enlargement ratio setting caused the sewing data to extend outside the sewing area.
E500
E502
E510
E511
E512
E581
E582
E583
Press the RESET key to clear the error.
Set the enlargement ratio again.
The enlargement ratio caused the stitch length to exceed the maximum length of 12.7 mm.
Press the RESET key to clear the error.
Set the enlargement ratio again.
Error in pattern data.
Press the RESET key to clear the error.
Re-read the pattern data from the media, or recreate the pattern data.
No end code has been input into pattern data.
Press the RESET key to clear the error.
Recreate the pattern data containing the end code, or change the pattern number being read.
Number of stitches exceeds allowed maximum.
Press the RESET key to clear the error.
Change the number of the pattern being read.
Memory switch file cannot be read correctly.
Copy source model and copy destination model are incorrect. (Maybe the 430FX II・FS II is attempting to read
data for the 438FX II.)
Press the RESET key to clear the error.
Read data for the same sewing machine model.
Memory switch versions do not match.
Press the RESET key to clear the error.
Read data for the same version.
Parameter versions do not match.
Press the RESET key to clear the error.
Read data for the same version.
Device-related errors
Code Cause and remedy
Thread nipper motor home position cannot be detected. Problem with thread nipper motor o
E690
E691
P.C. board-related errors
Code Cause and remedy
E700
E701
E705
E710
E711
encoder connection.
Turn off the power, and then clean underneath the needle plate to remove any dust and thread scraps.
Check that connector P20 on the main P.C. board is properly connected.
Thread nipper retract position error.
Check if the upper thread trailing length is too long.
Turn off the power, and then clean underneath the needle plate to remove any dust and thread scraps.
Check that connectors P20 and P4 on the main P.C. board are properly connected.
Abnormal rise in power supply voltage.
Turn off the power and check the input voltage.
Abnormal rise in sewing machine motor drive voltage.
Turn off the power, and then check the voltage.
Abnormal drop in power supply voltage.
Turn off the power and check the input voltage.
Abnormal current was detected in sewing machine motor.
Turn off the power, and then check if there are any problems with the sewing machine.
Abnormal current was detected in pulse motor.
Turn off the power, and then check if there are any problems with the work clamp/button clamp operation.
10. TABLE OF ERROR CODES
poor thread nipper
If an error code that is not listed above appears or if carrying out the specified remedy does not solve
the problem, contact the place of purchase.
KE-430FX II/KE-430FS II, BE-438FX II
75
11. TROUBLESHOOTING
11. TROUBLESHOOTING
• Please check the following points before calling for repairs or service.
• If the following remedies do not fix the problem, turn off the power switch and consult a qualified technician or the place of
purchase.
CAUTION
Turn off the power switch and disconnect the power cord before carrying out troubleshooting, otherwise the
machine may operate if the foot switch is depressed by mistake, which could result in injury.
Problem Cause Remedy Ref.
Work clamp does not
rise. (KE-430FX II・FS II)
Button clamp does not
rise. (BE-438FX II)
Work clamp lift amount
is incorrect.
(KE-430FX II・FS II)
Button clamp lift
amount is incorrect.
(BE-438FX II)
Thread wiper does not
operate correctly.
Lower thread winds to
one side.
Work clamp operation is sluggish.
Too much friction between work clamp
lifter plate and work clamp arm lever
plate.
Work clamp is contacting thread wiper. Adjust the position of the thread wiper. P. 70
Work clamp is contacting thread wiper. Adjust the position of the thread wiper. P. 70
Incorrect position of work clamp arm
lever plate
Incorrect position of button clamp holder
hook.
The thread wiper is obstructing the
needle.
Thread wiper position is incorrect.
Height of bobbin winder tension
assembly is incorrect.
Grease the sliding part of the work
clamp.
Grease the work clamp lifter plate and
work clamp arm lever plate.
Adjust the work clamp lift amount. P. 69
Adjust the button clamp lift amount. P. 69
Adjust the height of the thread wiper. P. 70
Adjust the operating distance of the
thread wiper.
Adjust the operating distance of the
thread wiper.
Adjust the height of the bobbin winder
tension assembly.
P. 5 9
P. 7 1
P. 7 1
P. 2 8
Lower thread winding
amount is incorrect.
Thread comes
unthreaded.
76
Bobbin presser position is incorrect.
Stitches being skipped at the sewing
start.
Uneven needle thread. Adjust the sub-tension.
Needle thread is too short. Use a thread nipper device.
KE-430FX II/KE-430FS II, BE-438FX II
Adjust the position of the bobbin
presser.
Refer to “Skipped stitches occur” P. 77
P. 2 8
P. 3 0
P. 3 1
11. TROUBLESHOOTING
Problem Cause Remedy Ref.
Upper thread breaks.
Lower thread breaks.
Skipped stitches occur.
Upper thread tension is too strong. Adjust the upper thread tension.
Needle is installed incorrectly. Install the needle correctly.
P. 6 3
P. 2 6
Thread is too thick for the needle. Use the correct thread for the needle. P. 30
Thread take-up spring tension and
height are incorrect.
Damaged or burred rotary hook, needle
hole plate or needle.
Thread melting (synthetic thread) Use the needle cooler.
Lower thread tension is too strong. Adjust the lower thread tension.
Corners of needle hole plate or bobbin
case are damaged.
Clearance between needle and rotary
hook tip is too great.
Adjust the tension and height of the
thread take-up spring.
File smooth or replace the affected
part.
P. 6 4
P. 2 2
P. 6 3
File smooth or replace the affected
part.
Adjust the needle clearance. P. 66
Incorrect needle and rotary hook timing.Adjust the needle bar lift amount. P. 66
Needle breaks.
Button breaks.
(BE-438FX II)
Driver is contacting needle more than is
necessary.
Adjust the driver needle guard. P. 66
Needle is bent. Replace the needle.
Needle is installed incorrectly. Install the needle correctly.
P. 2 6
Adjust the needle clearance. P. 66
Needle is touching the rotary hook.
Adjust the needle bar lift amount. P. 66
Needle is bent. Replace the needle.
Needle is too thin. Use the correct needle for the material. P. 30
Needle is striking the button.
(BE-438FX II)
Needle is striking the button.
Refer to “5-5. Checking the sewing
pattern” .
Refer to “5-5. Checking the sewing
pattern” .
P. 4 2
P. 4 2
KE-430FX II/KE-430FS II, BE-438FX II
77
11. TROUBLESHOOTING
Problem Cause Remedy Ref.
Upper thread is not
trimmed.
Thread jamming.
Movable knife is blunt. Replace the movable knife.
Fixed knife is blunt. Sharpen or replace the fixed knife.
Adjust the position of the shuttle race
Movable knife does not pick up the
thread guide.
P. 6 8
P. 6 8
P. 6 7
thread.
Adjust the needle bar lift amount. P. 66
The movable knife does not pick up the
thread because of skipped stitches at
Refer to “Skipped stitches occur”. P. 77
the sewing end.
Movable knife position is incorrect.
Sub-tension is too weak.
Thread take-up spring tension and
height are incorrect.
Adjust the position of the movable
knife.
Turn the sub-tension nut to adjust the
tension.
Adjust the tension and height of the
thread take-up spring.
P. 6 8
P. 3 0
P. 6 4
Incorrect needle and rotary hook timing.Adjust the needle bar lift amount. P. 66
Shuttle race thread guide is not
separating the threads.
Adjust the position of the shuttle race
thread guide.
P. 6 7
Poor seam finish on
reverse side of
material.
Shuttle race thread guide is separating
the threads insufficiently.
Upper thread is not properly tight. Adjust the upper thread tension.
Uneven needle thread. Adjust the sub-tension.
Needle thread is too long.
Needle is striking the button.
(BE-438FX II)
Incorrect thread
tightness.
Upper thread tension is too weak. Adjust the upper thread tension.
Lower thread tension is too weak. Adjust the lower thread tension.
Thread take-up spring tension and
height are incorrect.
Machine does not
operate when power is
turned on and foot
switch is depressed.
Machine head switch does not work.
Adjust the position of the shuttle race
thread guide.
Adjust the sub-tension.
<When using the thread nipper
device>
Turn the tension nut to adjust the upper
thread trailing length to 35 – 38 mm.
Refer to “5-5. Checking the sewing
pattern”.
Adjust the tension and height of the
thread take-up spring.
Check if the machine head switch cord
is disconnected.
Adjust the position of the switching
plate.
P. 6 7
P. 6 3
P. 3 0
P. 3 0
P. 4 2
P. 6 3
P. 6 3
P. 6 4
P. 1 7
P. 2 5
78
Replace the machine head switch if it is
broken.
KE-430FX II/KE-430FS II, BE-438FX II
12. 7-SEGMENT DISPLAY LIST
12. 7-SEGMENT DISPLAY LIST
4268M
KE-430FX II/KE-430FS II, BE-438FX II
79
INSTRUCTION MANUAL
* Please note that the contents of this manual may differ slightly from the actual product purchased as a result of product improvements.