Page 1
MSK-8400B
MSK-8420B
Industrial Sewing Machine
Instruction Manual
Page 2
Operation instruction
CONTENTS
1. Brief introduction
2. Main specifications
3. Installation and preparation
3.1 Installation
3.1.1 Location of the machine
3.1.2 Installing oil reservoir
3.1.3 Mounting machine head
3.1.4 Mounting knee lifter
3.1.5 Installing the motor
3.1.6 Connecting the clutch lever to the pedal
3.1.7 Installing the thread winder
3.1.8 Installing the thread spool stand
3.2 Preparation
3.2.1 Cleaning the machine
3.2.2 Examination
3.2.3 Precaution before start
4. Operation
4.1 Coordination between needle thread and sewing material
4.2 Installing the needle
4.3Winding the bobbin thread
4.3.1 Winding method
4.3.2 Winding adjustment
4.3.3 Threading
4.3.4 Stich length and reverse sewing control
4.3.5 Setting the bobbin
4.3.6 Drawing thread from the bobbin
5. Machine adjustment
5.1 Thread tension adjustment
5.2 Adjusting the pressure of presser foot
5.3 Use and adjustment of the safety clutch device
5.3.1The function of the safety clutch device
5.3.2 Resetting the safety clutch device
5.3.3 Regulating the strength on the safety clutch device
5.4 Upper feed adjustment
5.5 Presser foot lift volume adjustment
5.6 Hook oil amount adjustment
1
1
1
1
1
1
1
2
2
3
3
3
3
3
4
4
5
5
5
5
5
6
6
6
7
7
7
7
8
8
8
8
9
9
10
10
Page 3
Parts manual
1. MSK-8420B Arm parts
2. MSK-8400B Arm parts
3. Upper shaft and presser foot parts
4. MSK-8420B Needle bar motion and Lower feed parts
5. MSK-8400B1 Needle bar motion and Lower feed parts
MSK-8420B
6. Rock shaft and thread looping parts
MSK-8400B
7. Rock shaft and thread looping parts
8. Stitch length adjusting parts
9. Knee lifter parts
MSK-8420B
10. Lubrication parts
MSK-8400B
11. Lubrication parts
12.Accessories
11 14
15 18
19 22
23 26
27 30
31 34
35 38
39 40
41 44
45 48
49 52
53 54
Page 4
1. Brief introduct oni
Both the models adopt straight twin-needle and two horizontal hooks with auto lubrication for thread
looping, sliding lever for thread take up to form two lines of lockstitch seam. The upper shaft and lower
shaft is connected by ball bearing and driven by teeth-type synchronic belt; plunge oil pump lubrication
system. They adopt the compound feed mechanics of feed dog, needle bar and presser foot, even if for long
stitch length and long material, They can deal with them freely.
They are widely used in factories of suitcase, tent, cushion, leather goods, apparel, mat, etc..
The difference between the two models:
MSK-8420B adopts twin-needle, two large horizontal hooks with auto lubrication. With the parts it can
form ten different needle gauges.
MSK-8400B adopts single needle and form single line double lockstitch form.
2. Main Technical Specification
1 Application: medium and heavy duty materials
2 Max. sewing speed: 2000 spm
3 Max. Stitch length : 9 mm
4 Needle bar stroke: 36 mm
5 Presser foot lift height: 8mm(by hand); 16mm(by knee)
6 Hook: large horizontal hook with auto lubrication
7 Needle: DP 17 Nm125~180
8 Lubrication: pump auto lubrication (partial of manually oiling)
9 Needle gauge: (Twin-needle) 6.4, 3.2, 4, 4.8, 8, 9.5, 12.7, 16, 19, 25.4
10 Motor power: 0.37 kw (clutch motor)
3. Installation and preparation
3.1 Installation
3.1.1 Location of the machine
To ensure a smooth running, the machine should
be located on rigid and flat floor. The insert of
rubber mat between machine stand and floor is
recommended for further reducing the running noise
and vibration.
3.1.2 Oil Reservoir Installation(Fig.1)
Put the oil reservoir into the table cutout, and
place the four cushions on the four corners of the
cutout, and place oil felt into the oil reservoir.
3.1.3 Mounting machine head(Fig.2)
Make the hinge A of machine head engaged with
hinge socket B on the table, then turn the machine
head freely till it is seated on the frame of table
cutout.
()
1
small
B
A
big
oil felt
B
A
2
-1-
B
A
Page 5
3.1.4 Knee control presser foot lifter installation(Fig.3)
a. Installing
Install Connector A , Bell Crank B , Bell C
in the order shown in Fig.3.
() () ( )
3
A
B
C
b. Adjustment (Fig.4)
In the order of the following:
1.When the presser foot is at its lowest posi tion, keep the crank in the position shown by b
in the figure, turn Knee Control Stop Adjusting
Screw C to touch with the oil reservoir, and
tighten the nut of Screw C .
2. When operate by knee, the presser foot lift
volume is controlled by Screw B . Turn the
presser foot lever down, make the bell in the po sition shown by a in the figure, lift the presser
foot to 13 mm, adjust Screw B to touch the oil
reservoir. Then tighten the nut of Screw B .
3.1.5 Installing the motor (Fig.5)
Align machine balance wheel belt groove A with
motor pulley belt groove B by moving the motor C
leftward or rightward. Be sure the belt is not touch
with table.
()
()
()
()
()
()
() ( )
4
B
C
A
5
A
-2-
B
C
Page 6
3.1.6 Connecting the clutch lever to the pedal (Fig.6)
1)The optimum tilt angle of pedal A with floor
is approx.30 degree.
2)Adjust the clutch of the motor so that clutch
() ()
lever C and draw bar B run in line.
3)The machine balance wheel should rotate coun-
terclockwise for normal sewing when view from opposite
side of balance wheel G . The motor is rotated in the
same direction. The rotation can be reversed by reversing (turn over 180 deg.)the plug of motor.
4)Adjust the tension of V-belt F by moving the
motor vertically. The proper tension of V-belt is a slack
of 10-12mm when the belt is depressed at the belt span
by finger.
()
()
()
G
F
E
D
C
B
A
10
m
2
- 1
20¡«30
6
m
3.1.7 Installing the bobbin winder (Fig.7)
Align pulley B of bobbin winder with outside of
( )
belt C and should be kept a proper clearance between
them , so that pulley B could be contacted with belt
after the stop latch thumb lever A depressed, thereby
belt drives the pulley B while machine running. After
check bobbin winder is in parallel with belt slit E
of table, fastened by two wood screws D .
3.1.8 Installing the thread spool stand (Fig.8)
Locate thread spool stand at the right front of
the table, note that spool rest may not obstruct when
machine head is turned backward, then tighten wood
screw.
()
()
()
7
E
D
C
B
A
D
B
A
B
A
A
8
3.2 Preparation
3.2.1 Cleaning the machine
Before delivery, the machine parts are coated with
rust preventive grease, whice may be hardened and contaminated by dust during storage and shipment. The
grease must by removed by clean cloth with gasoline.
-3-
C
Page 7
3.2.2 Examination
Though every machine is confirmed by strict inspection and test before delivery, the machine parts may be
loosed or deformed after long. distance transportation
with jolt. A thorough examination must be performed
after cleaning the machine . Turn the balance wheel to
see if there is running obstruction, parts collision,
uneven resistance or abnormal nosie. If these exist,
adjustment must be made accordingly before run.
3.2.3 Precaution before Start
a. Oiling (Fig.9)
Oil amount should be filled according to the marks
in the oil reservoir. Mark (H) refers to the highest
of oil amount; (L) refers to the lowest, be careful that
the oil amount should not be lower than Mark (L),
otherwise the machine parts can not be fed with oil
and cause overheat and collision.
Be sure to use machine oil HA-8 or HJ-7
9
oil mark
10
b. When the machine starts for the initial time or
reuse after a long period of time, the proper oil
amount should be filled in sections of machine shown
by arrows in Fig10,11.When it is in operation, observe
the oil sparking in oil screen to check the oil
condition.
Note: when the machine needs drop oiling , do not
start before drop oiling.
c. When a new machine starts running, for extending
its life, please run at a medium and low speed (1000
spm) for about a month and then raise the speed
gradually.
d. Please turn off the power when it is not in use
or the operator leaves away from it .
e. Replace the oil every month. When replacing,
fully drain off the old oil in the reservoir and add
the new one.
f. The needle gauge options are: 6.4, 3.2, 4, 4.8, 8,
9.5, 12.7, 16, 19, 25.4 For getting it , the throat plate,
presser foot or alternating foot , needle holder, feed
dog, left and right sliding plates, thread guide should
be changed. It is provided with 6.4mm when it leaves
off the factory, For the other size, the relevant parts
can be ordered from the factory.
11
12
oil screen
-4-
Page 8
4. Operation
4.1 Coordination between needle, thread and sewing
material
Please use needle DP 17,Nm125-180.The coarseness
of needle should be in accordance with the nature of
material. If stitch on heavy duty material with a slim
needle, the needle will be easily bent, skip or thread
breakage occurs, on the contrary, stitch on tightly woven
material with a very coarse needle, the material will
be destroyed with over-big needle. So the needle and
thread should be properly selected.
13
A
clearance
long groove
4.2 Needle installation(Fig.13)
Turn the balance wheel to lift needle bar to the
highest position, loosen Needle Set Screw A , fully
insert the needle shank upto the bottom of needle
socket, keeping the long grooves of the two needles
opposite with each other, then tighten Screw A , For
single needle, keep the long groove of needle facing
the left of the operator. See Fig (b).
Note: Fig.(c) : insufficient insertion.
Fig.(d) : wrong direction of needle long groove
in insertion.
4.3 Winding the Bobbin thread
4.3.1 Winding method(Fig.14)
1) Install bobbin A to bobbin winder spindle B .
2) Pass thread C from spool through the eye 1 on
tension bracket E . Pass ti between tension discs 2 ,
and then wind the end of the thread a few turns on
the bobbin.
3) Push stop latch thumb lever D down to lock the
bobbin, the winder pulley F is thereby pressed on
()
belt G .
4) Start the machine to wind thread.
Note when thread is wound without sewing operation, be sure to keep the presser foot lifted.
5) When the thread is fully wound, the bobbin winder
stop latch automatically release the bobbin winder,
thus stopping the winding motion.
() ()
()
()
()
()
()
(a)
(c)
single needle
long groove leftward
(d)
(b)
14
F
1
2
G
H
E
D
C
B
A
-5-
Page 9
4.3.2 Winding adjustment (Fig.15)
1) Wound bobbin thread should be neat and tight,
if not , adjust the thread tension by turning tension
stud thumb nut A of bobbin winder tension bracket.
()
Note: nylon or polyester thread should be wound
with light tension , otherwise bobbin D might be
()
broken or deformed.
2) When the wound thread layer does not present a
cylindrical shape as in Fig.15a, loosen tension bracket
screw B and move tension bracket C leftward or
() ()
rightward. If thread is wound as shown in Fig, 15b,
move the tension bracket rightward, while if thread
is wound as shown in Fig.15c,move the tension bracket
leftward, After adequately positioning the tension
bracket, tighten screw B .
()
3) Do not over fill the bobbin , the optimum capacity
of thread will fill about 80% of bobbin ouside diameter,
this can be adjusted by stop latch screw E .
()
A
B
C
15
D
E
4.3.3 Threading (Fig.16)
Every thread should be drawn through Thread Hole
()
A , when use light and smooth thread (polyester or long
silk thread), it should be drawn through Hole B , Keep
()
the thread take-up lever in its highest position , draw
every thread in the following numerical order.
4.3.4 The stitch length and forward and reverse sewing
control (Fig.17)
The stitch length can be regulated by Stitch
Length Dial A . Turn it counter-clockwise to expand
()
its length and clockwise to shorten its length . The
numbers on Dial A show the sizes of the stitch length
()
in mm.
For reverse feed, press down Release Feed Lever
()
C to perform reverse sewing , Release the lever, the
reverse feed lever can reset automatically and the
forward sewing is resumed.
R7 R1
L7 L5 L4 L3' L3 L2' L2 L
L8
R8
L9
R9
L10
R10
L11
L12
L13
from right to left from left to right
R6
L6
R11
R12
R13
A A AB B
R2
R3
R4
R5
detail chart
thread
A
16
L11 R11
17
C
-6-
Page 10
4.3.5 Placing bobbin (Fig.18)
Note: when bobbin is placed into the bobbin case,
the thread should be wound properly in the correct
direction shown in the figure.
4.3.6 Drawing thread from the bobbin (Fig.19)
a. Draw the thread end to Bobbin Slot (1) shown in
the figure, and pull it out down through the inner
bobbin stop piece.
b. Hold the thread with left hand , turn the balance
wheel slowly and get the bobbin thread, then draw
them a little apart from the presser foot.
sliding plate
hook
thread
18
hook
sliding plate
1
thread
inner stop piece
5. Machine Adjustment
5.1 Thread tension adjustment
All forms of stitches are shown in Fig.20.
The normal stitch of sewing machine is shown as
Fig.(A) If stitch is abnormal , the puckering and thread
breakage will occur, and the needle thread tension and
bobbin thread tension should be adjusted so that the
normal stitch can be obtained.
thread
2
19
1
A
Normal
B
20
a. If the stitch seam shows as Fig. 20B, indicates
that the needle thread or bobbin thread tension
is too loose , then turn the thread tension screw
counter-clockwise to release the needle thread
pressure; or turn the adjusting screw with a
screwdriver to increase the bobbin thread ten sion.( see Fig.20,22 )
C
21
loosen
tension adjusting screw
tighten
-7-
Page 11
b. If the needle thread is too loose and the bobbin
thread is too tight, then shows as Fig. 20C, And
turn the thread tension screw clockwise to increase
the needle thread tension; or turn loose the
bobbin lace screw to reduce the bobbin thread
tension. (See Fig. 21, 22)
For special sewing with special thread, the tension needed can be obtained by adjusting the power and
stroke of the thread take-up spring.
5.2 Adjusting the pressure of presser foot (Fig.23)
The pressure of the presser foot should be adjusted according to the thickness of the sewing materials.
If stitch on heavy duty material, the pressure should
be increased and turn the pressure adjusting screw on
the back of the arm clockwise if reduce the pressure,
turn it counter-clockwise.
5.3 Use and adjustment of the safety clutch device
The function of the safety clutch device is to
prevent the hook and teeth-belt from destroy when the
needle thread is drawn into the hook for adnormal load
during the operation.
increase
22
needle thread tension
increase
reduce
23
reduce
pressure adjusting screw
5.3.1 The function of the safety clutch device(Fig.24)
a. When the safety clutch device is functioning,
the teeth-belt will remove the load and the rock
shaft will stop rotating, only the upper shaft
rotates, and the machine stops work.
b. Clean off the needle thread which is drawn in
the hook.
c. Turn the shaft of the teeth-belt with hand to
check if the rock shaft can turn smoothly, then
reset the safety clutch device.
5.3.2 Resetting the safety clutch device.
a. While press down the button in the bed surface
with left hand, turn the balance wheel slowly
with right hand in the direction shown in Fig.
25.
24
safety clutch device
teeth - belt pulley
shaft
25
balance wheel
button
-8-
Page 12
b. When the stop plate stops the balance wheel,
more strength is needed to turn the balance
wheel to reset the safety clutch device.
C. Release the button in the bed. So the resetting
of it is OK. (See Fig.26)
26
stop plate
5.3.3 Regulating the strength on the safety clutch
device(Fig.27)
a. When the white mark of the eccentric pin aims
at the center of the rock shaft, indicates that
the strength on the safety clutch device is the
minimun.When the white mark points outward, the
strength is properly increased.
b. For regulating the strength of it, move the teeth
- belt and loosen the set screw of the eccentric
pin, and turn the eccentric pin.
c. After regulation, please tighten the set screw.
5.4 Upper feed adjustment (Fig.28)
If the upper and lower feed are not in timing
during sewing, the long hole of the horizontal feed
crank should be adjusted to get the length of upper
feed.
Adjust as the following:
a. Loosen the special screw.
b. Move the special screw upward to reduce the feed
amountor upper layer of material.
c. Move the special screw downward to increase the
feed amount. Theoretically when it is on the
reference line of the horizontal feed crank, the
upper feed amount equals to the lower feed
amount.
d. After adjustment, tighten the special screw.
white mark
tighten
loosen
lower shaft
button
eccentric
reference line
special screw
27
belt
set screw
eccentric
28
horizontal shaft crank
upper layer feed reduce
link
upper layer feed increase
-9-
Page 13
5.5 Presser foot lift volume adjustment (Fig.29)
when stitch on the very elastic material or the
thickness of the sewing material is changed. The adjustment should be done in the following order:
1. Loosen the special screw.
2. When the centerline distance between the special
screw and the presser foot lift rear crank becomes
shorter, the presser foot lift volume will become longer.
On the country the distance becomes longer, the lift
volume will become shorter.
3. After adjustment, tighten the special screw. The
common presser foot lift volume can be adjusted in
the range of 2-6 mm.
29
crank
special screw
increase
reduce
crank link
5.6 Hook oil amount adjustment (Fig.30)
It adopts plunger full auto lubrication system,
even at very low speed, it can supply and suck oil very
well. Generally only the hook oil amount can be adjusted, the other can not be adjusted. The hook oil
amount can be obtained by the oil amount adjusting
screw. First loosen the nut of the adjusting screw,
turn the scre clockwise to increase the oil amount,
on the contrary reduce the oil amount. After adjustment, tighten the nut.
w
oil amount
adjusting screw
increase
30
reduce
nut
-10-
Page 14
Parts Manual
Page 15
1. MSK-8420B Arm Parts
1
3434
3333
3232
3131
3030
2929
2727
1313
1212
2828
13 13
12 12
36 36
18 18
23 23
22 22
2121
1717
20 20
1919
13 13
12 12
66 66
43 43
37 37
42 42
40 40
65 65
41 41
13 13
12 12
131213
12
11 11
1010
99
7 7
8 8
2 2
6 6
1 1
2626
3535
39 39
25 25
2424
3838
16 16
15 15
64 64
63 63
61 61
55 55
60 60
44 44
62 62
59 59
58 58
5757
45 45
14 14
46 46
47 47
48 48
3 3
56 56
4 4
49 49
54 54
53 53
50 50
51 51
52 52
5 5
-11-
Page 16
1. MSK-8420B Arm Parts
Item Part number
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
1WF1-001
1WF1-002
1WF1-041
1WF1-042
1WF1-015
1WF1-016
1WF1-017
1WF1-011
Description P cs
Bed
Arm
Pin
Screw
Screw
Trade mark plate
Model plate
Nail
Upper thread guide
Screw
Back cover
Screw
Washer
1
1
2
1
3
1
1
4
1
2
1
15
15
14.
15.
16.
17.
18.
19..
20.
21.
22.
23.
24.
25.
26.
27.
1WF1-032
1WF1-038
1WF1-039
1WF1-019
1WF1-030
1WF1-027
1WF1-028
1WF1-003
1WF1-004
1WF1-005
1WF1-034
1WF1-036
1WF1-007
1WF1-006
Cover
Front slide plate
Screw
Tread take-up lever guard
Back front cover
Screw
Spring
Thread retainer
Low thread figer
Screw
Screw
Screw
Screw
Middle thread finger
2
1
1
1
1
1
1
1
1
1
1
1
1
1
28.
29.
30.
31.
1WF1-018
1WF1-013
1WF1-009
1WF1-008
Rubber plug
Face plate
Screw
Upper thread finger
-12-
2
1
2
1
Page 17
1. MSK-8420B Arm Parts
1
3434
3333
3232
3131
3030
2929
2727
1313
1212
2828
13 13
12 12
36 36
18 18
23 23
22 22
2121
1717
20 20
1919
13 13
12 12
66 66
43 43
37 37
42 42
40 40
65 65
41 41
13 13
12 12
131213
12
11 11
1010
99
7 7
8 8
2 2
6 6
1 1
2626
3535
39 39
25 25
2424
3838
16 16
15 15
64 64
63 63
61 61
55 55
60 60
44 44
62 62
59 59
58 58
5757
45 45
14 14
46 46
47 47
48 48
3 3
56 56
4 4
49 49
54 54
53 53
50 50
51 51
52 52
5 5
-13-
Page 18
1. MSK-8420B Arm Parts
Item Part number
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
1WF1-012
1WF1-021
1WF1-020
1WF1-035
1WF1-037
1WF1-023
1WF1-033
1WF1-040
1WF1-029
1WF1-022
1WF1-031
1WF1-014
1WF1-010A
1WF1-010B
1WF1-010C
Description P cs
Guid set plate
Set plate
Oil retainer
Tread releasing lever
Pin shaft
Thread releasing lever
Right sliding plate
Left sliding plate
Plug
Plug
Back fitting cover
Plug
Tread tension set plate assembly
Thread guide bracket
Thread guide plate
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
61.
62.
1WF1-010D
1WF1-010E
1WF1-010M
1WF1-010H
1WF1-010G
1WF1-010S
1WF1-010F
1WF1-010R
1WF1-010Q
1WF1-010J
1WF1-026
1WF1-025
1WF1-010K
1WF1-010I
1WF1-024
1WF1-010L
Spring
Thread guide bracket screw assembly
Tread releasing pin
Tread tension nut
Thread tension spring
Thread tensing plate
Thread tension plate
Screw
Screw
Thread control plate assembly
Screw
Stop plate
Thread take-up spring
haft for thread take-up spring
S
Set screw
Thread releasing pin
2
2
1
3
2
2
4
1
2
2
1
1
1
1
1
1
63.
64.
65.
66.
1WF1-010W
1WF1-010P
1WF1-043
22T2-004
Thread tension retaining plate
Thread releasing spring
Spring retaining plate
Screw
-14-
1
1
1
1
Page 19
2. MSK-8400B Arm Parts
2
32
31
30
29
28
27
25
13
12
26
13
12
18
20
21
17
19
13
12
63
41
35
40
38
64
39
13
12
13
12
11
10
9
7
8
2
6
1
24
33
37
23
22
16
15
62
61
59
53
58
62
57
42
43 44
56 55
14
45
46
3
54
4
47
51
52
48
50
5
49
-15-
Page 20
2. MSK-8400B Arm Parts
Item Part number
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
9WF1-007
1WF1-002
9WF1-005
9WF1-006
1WF1-015
1WF1-016
1WF1-017
1WF1-011
1WF1-032
Description P cs
Bed
Arm
Pin
Screw
Screw
Trade mark plate
Modle plate
Nail
Upper thread guide
Screw
Back cover
Screw
Washer
Ccover
1
1
2
1
3
1
1
4
1
2
1
15
15
2
15.
16.
17.
18.
19..
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
1WF1-038
1WF1-039
1WF1-019
1WF1-030
1WF1-005
9WF1-001
9WF1-002
1WF1-034
1WF1-036
1WF1-007
1WF1-006
1WF1-018
1WF1-013
1WF1-009
1WF1-008
Front slide plate
Screw
Thread take-up lever guard
Back front cover
Screw
Low thread finger
Oil felt
Screw
Screw
Screw
Middle thread finger
Rubber plug
Face plate
Screw
Upper thread finger
1
1
1
1
1
1
1
1
1
1
1
2
1
2
1
30.
31.
1WF1-012
1WF1-021
Guide set plate
Set plate
-16-
1
1
Page 21
2. MSK-8400B Arm Parts
2
32
31
30
29
28
27
25
13
12
26
13
12
18
20
21
17
19
13
12
63
41
35
40
38
64
39
13
12
13
12
11
10
9
7
8
2
6
1
24
33
37
23
22
16
15
62
61
59
53
58
62
57
42
43 44
56 55
14
45
46
3
54
4
47
51
52
48
50
5
49
-17-
Page 22
2. MSK-8400B Arm Parts
Item Part number
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
1WF1-020
9WF1-004A
1WF1-043
1WF1-023
1WF1-033
1WF1-040
1WF1-029
1WF1-022
1WF1-031
1WF1-034
1WF1-010A
1WF1-010B
1WF1-010C
1WF1-010D
1WF1-010E
Description P cs
Oil retainer
Throat plate
Spring retaining plate
Thread releasing lever
Right sliding plate
Left sliding plate
Plug 14.5
Plug 12.7
Back fitting cover
Plug
Thread tension set plate assembly
Thread guide bracket
Thread guide plate
Spring
Thread guide bracket screw assembly
12.7
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
61.
62.
1WF1-010M
1WF1-010H
1WF1-010G
1WF1-010S
1WF1-010F
1WF1-010R
1WF1-010Q
1WF1-010J
1WF1-026
1WF1-025
1WF1-010K
1WF1-003A
1WF1-024
1WF1-010I
1WF1-010W
1WF1-010P
Thread releasing pin
Thread tension nut
Thread tension spring
Thread releasing plate
Thread tension plate
Screw
Screw
Thread control plate addembly
Screw
Stop plate
Thread take-up spring
Shaft for thread take-up spring
Set screw
Thread releasing retaining plate
Thread tension retaining plate
Thread releasing spring
1
1
1
1
2
1
2
1
1
1
1
1
1
1
1
1
63.
22T2-004
Screw
-18-
1
Page 23
3. Upper Shaft Presser Foot Parts
3
43
41
42
39
40
34
35
37
38
11
10
8 13
14
15 16
14
18
45
46
49
48
47
50
51
44
12
6
33
9
7
5
3
8
36
4
2
1
53
52
13
20
32
29
31
17
21
19
22
23
24
25
26
27
28
30
-19-
Page 24
3. Upper Shaft Presser Foot Parts
Item Part number
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
1WF2-025
1WF2-022
1WF2-023
1WF2-024
1WF2-021
1WF2-020
1WF2-007
1WF2-010
1WF2-009
1WF5-026
1WF5-041
1WF2-026
1WF2-030
Description P cs
Upper shaft
Front bushing
Screw
Oil felt
Needle crank
Screw
Screw
Screw
Screw
Presser foot lift eccentric cam
Stop ring
Slot for front crank sliding block
Stop ring
Screw
1
1
1
1
1
1
1
3
1
1
1
1
3
3
15.
16.
17.
18.
19..
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
1WF2-029
1WF2-031
1WF2-019
1WF2-032
1WF2-044
1WF2-028
1WF2-039
1WF2-037
1WF2-041
1WF2-040
1WF2-048
1WF2-045
1WF2-042
Set screw
Ball bearing for upper shaft
Rear bushing for upper shaft
Screw
Balance wheel
Screw
Teeth belt
Spring plate
Pin for eccentric shaft
Spring
Split stop ring
Stop plate
Nail
Control plate
Connection
1
1
1
2
1
2
1
1
1
1
1
1
1
1
1
30.
31.
1WF2-046
1WF2-047
Bushing
Set screw
-20-
1
1
Page 25
3. Upper Shaft Presser Foot Parts
3
43
41
42
39
40
34
35
37
38
11
10
8 13
14
15 16
14
18
45
46
49
48
47
50
51
44
12
6
33
9
7
5
3
8
36
4
2
1
53
52
13
20
32
29
31
17
21
19
22
23
24
25
26
27
28
30
-21-
Page 26
3. Upper Shaft Presser Foot Parts
Item Part number
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
1WF2-038
1WF5-001
1WF5-025
1WF5-044
1WF5-023
1WF5-024
1WF5-045
1WF4-018
1WF5-038
1WF5-028
1WF5-037
1WF5-030
1WF5-029
1WF5-032
1WF5-033
1WF5-034
1WF5-035
Description P cs
Screw
Nut
Connecting lever
Connecting screw
Washer
Oil tube assembly
Sping
Presser foot lift rear crank
Screw
Presser foot lift front crank
Screw
Bushing
Presser foot lift link
Connecting screw
Connecting screw
Presser foot lift movable plate
Shaft for needle bearing
Needle bearing
Washer
1
1
1
1
1
1
1
1
3
1
2
2
1
1
1
1
1
1
1
51.
52.
53.
1WF5-042
1WF2-027
1WF2-037
Screw
Timing wheel
Timing wheel
2
2
1
-22-
Page 27
4. MSK-8420B Needle Bar And Lower Feed Parts
4
1
2
3
29
28
27
26
25
30
4
5
6
7
10
8
11
9
14
15
16
17
18
19
20
12 13
36
40 43 42
38
37
41
44
39
43
45
42
46
47 48
49
1
24
23
32
31
77 76 75
22
74
78
73
79
67
72
71
66
33
64
34
35
70
80
65
69
63
21
68
54 57
59 61
56
60
63
59
62
58
45
53
57
56
52
55
51
50
45
54
-23-
Page 28
4. MSK-8420B Needle Bar And Lower Feed Parts
Item Part number
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19..
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37
.38
.39.
40.
41.
1WF5-017
1WF5-018
1WF5-031
1WF5-019
1WF2-018
1WF2-017
1WF2-016
1WF2-011
1WF2-019
1WF2-012
1WF2-013
1WF2-014
1WF2-015
1WF2-008
1WF5-011
1WF5-013
1WF5-012
1WF2-007
1WF2-005
1WF2-006
1WF2-004
1WF5-006
1WF5-010
1WF5-009
1WF5-036
1WF3-009
1WF5-014
1WF5-016
1WF5-015
1WF5-043
22T2-004
1WF2-003
1WF2-002
1F-009
1WF5-007
1WF5-008
1WF5-020
1WF5-021
1WF5-022
Description P cs
Oil wick
Shaft for needle bar motion holder
Screw
Screw
Oil wick
Bushing for thread take-up lever hole
Thread take-up lever
Sliding block
Screw
Oil wick
Plug
Pin for needle bar crank
Oil wick
Needle bar link
Needle bar motion holder
Screw
Shim for needle bar motion holder
Oil felt
Needle bar adaptor
Screw
Needle bar
Presser bar
Screw
Washer
Needle bar holder guide
Presser bar link
Screw
Needle bar motion holder guide
Spring
Reel for spring
Alternate foot
Screw
Needle holder
Screw
Needle
Sliding block for needle bar motion
Shaft for sliding block
Left crank
Pin
Washer
Screw
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
6
2
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
2
2
1
1
1
1
1
2
-24-
Page 29
4. MSK-8420B Needle Bar And Lower Feed Parts
4
1
2
3
29
28
27
26
25
30
4
5
6
7
10
8
11
9
14
15
16
17
18
19
20
12 13
36
40 43 42
38
37
41
44
39
43
45
42
46
47 48
49
1
24
23
32
31
77 76 75
22
74
78
73
79
67
72
71
66
33
64
34
35
70
80
65
69
63
21
68
54 57
59 61
56
60
63
59
62
58
45
53
57
56
52
55
51
50
45
54
-25-
Page 30
4. MSK-8420B Needle Bar And Lower Feed Parts
Item Part number
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
61.
62.
63.
64.
65.
66.
67.
68.
69.
70.
71.
72.
73.
74.
75.
76.
77.
78.
79.
80.
1WF5-027
1WF5-028
1WF5-048
1WF4-018
1WF5-005
1WF5-004
1WF5-003
1WF5-049
1WF5-002
1WF5-046
1WF5-047
1WF5-001
1WF4-052
1WF2-023
1WF4-054
1WF2-009
41WF3-017
1WF4-019
1WF4-020
1WF4-037
1WF4-038
1WF4-035
1WF4-034
1WF4-029
1WF4-030
1WF4-036
1WF4-031
9WF4-001
1WF4-032
1WF4 005
1WF4-004
1WF4-007
1WF4-008
1WF4-009
1WF4-002
1WF4-003
1WF4-033
Description P cs
Bushing for needle bar motion shaft
Set screw
Shaft for needle bar motion
Screw
Rear crank for needle bar motion
Connecting nut
Link for needle bar notion
Connecting screw
Right crank for feed shaft
Pin for right crank
Washer
Nut
Feed shaft bushing
Set screw
Collar for feed shaft
Screw
Feed crank
Split stop ring
Pin for feed crank
Oil wick
Feed shaft
Oil felt
Feed connecting crank(left)
Tension screw
Oil wick clump
Oil wick
Shaft for feet dog support crank
Oil wick
Feed dog support
Connecting screw
Washer
Screw
Feed dog
Screw
Oil felt for feed dog lift fork
Feed dog lift fork
Nut
Feed dog adjusting screw
Screw
2
2
1
3
1
1
1
1
1
1
1
1
2
2
2
4
1
2
1
1
1
2
1
2
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
-26-
Page 31
5. MSK-8400B Needle Bar And Lower Feed Parts
5
1
2
3
29
28
27
26
25
30
4
5
6
7
10
8
11
9
14
15
16
17
18
19
20
12 13
36
40 43 42
38
37
41
44
39
43
45
42
46
47 48
49
1
24
23
32
31
77 76 75
22
74
78
33
73
79
67
72
71
66
35
70
64
34
80
65
69
63
21
68
54 57
59 61
56
60
63
59
62
58
45
53
57
56
52
55
51
50
45
54
-27-
Page 32
5. MSK-8400B Needle Bar And Lower Feed Parts
Item Part number
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19..
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37
38
39.
40.
41.
1WF5-017
1WF5-018
1WF5-031
1WF5-019
1WF2-018
1WF2-017
1WF2-016
1WF2-011
1WF2-019
1WF2-012
1WF2-013
1WF2-014
1WF2-015
1WF2-008
1WF5-011
1WF5-013
1WF5-012
1WF2-007
1WF2-005
1WF2-006
1WF2-001
1WF5-006
1WF5-010
22T1-007
1WF5-009
1WF5-036
1WF3-009
1WF5-014
1WF5-016
1WF5-015
35T5-502
22T2-004
35T1-103
22T2-017
1F-009
1WF5-007
1WF5-008
1WF5-020
1WF5-021
1WF5-022
Description P cs
Oil wick
Shaft for needle bar motion holder
Screw
Screw
Oil wick
Bushing for thread take-up lever hole
Thread take-up lever
Sliding block
Screw
Oil wick
Plug
Pin for needle bar crank
Oil wick
Needle bar link
Needle bar motion holder
Screw
Shim for needle bar motion holder
Oil felt
Needle bar adaptor
Screw
Needle bar
Presser bar link
Screw
Washer
Needle bar holder guide
Presser bar link
Screw
Needle bar motion holder guide
Spring
Reel for spring
Alternate foot
Screw
Thread guide ring
Screw
Needle
Sliding block for needle bar motion
Shaft for sliding block
Left crank
Pin
Washer
Screw
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
6
2
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
2
-28-
Page 33
5. MSK-8400B Needle Bar And Lower Feed Parts
5
1
2
3
29
28
27
26
25
30
4
5
6
7
10
8
11
9
14
15
16
17
18
19
20
12 13
36
40 43 42
38
37
41
44
39
43
45
42
46
47 48
49
1
24
23
32
31
77 76 75
22
74
78
33
73
79
67
72
71
66
35
70
64
34
80
65
69
63
21
68
54 57
59 61
56
60
63
59
62
58
45
53
57
56
52
55
51
50
45
54
-29-
Page 34
5. MSK-8400B Needle Bar And Lower Feed Parts
Item Part number Description P cs
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
61.
62.
63.
64.
65.
66.
67.
68.
69.
70.
71.
72.
73.
74.
75.
76.
77.
78.
79.
80.
1WF5-027
1WF5-028
1WF5-048
1WF4-018
1WF5-005
1WF5-004
1WF5-003
1WF5-049
1WF5-002
1WF5-046
1WF5-047
1WF5-001
1WF4-052
1WF2-023
1WF4-054
1WF2-009
41WF3-016
1WF4-019
1WF4-020
1WF4-037
1WF4-038
1WF4-035
1WF4-034
1WF4-030
1WF4-029
1WF4-036
1WF4-031
9WF4-001
1WF4-032
9WF4-002A
1WF4-007
1WF4-008
1WF4-009
1WF4-002
1WF4-003
1WF4-033
Bushing for needle bar motion shaft
Set screw
Shaft for needle bar motion
Screw
Rear crank for needle bar motion
Connecting nut
Link for needle bar motion
Connecting screw
Right crank for feed shaft
Pin for right crank
Washer
Nut
Feed shaft bushing
Set screw
Collar for feed shaft
Screw
Feed crank
Split stop ring
Pin for feed crank
Oil wick
Feed shaft
Oil felt
Feed connecting crank(left)
Tension screw
Oil wick clump
Oil wick
Shaft for feed dog support crank
Oil wick
Feed dog support
Connecting screw
Washer
Screw
Feed dog
Screw
Oil felt for feed dog lift fork
Feed dog lift fork
Nut
Feed dog adjusting screw
Screw
2
2
1
3
1
1
1
1
1
1
1
1
2
2
2
4
1
2
1
1
1
2
1
2
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
-30-
Page 35
6. MSK-8420B Rock Shaft And Thread Looping Parts
6
6
28
27
26
29
28
5
3
4
2
1
24
7
8
19
20
23
9
10
11
12
13
14
15
16
17
18
21
22
25
31 32 33 34 35 36 37
38
39
40
41
42
43
53
44
54
45
46
30
47
48
49
50
51
52
£-31£-
Page 36
6. MSK-8420B Rock Shaft And Thread Looping Parts
Item Part number
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
1WF2-063
1WF2-060
1WF2-059
1WF2-061
1WF2-064
1WF2-065
1WF2-070
1WF2--069
1WF2-072
1WF2-071
1WF2-075
1WF5-026
1WF2-076
Description P cs
Right hook saddle
Screw
Upper bushing of hook saddle
Lower bushing of hook saddle
Hook assembly
Bobbin
Oil wick
Hinge shaft
Screw
Connecting lever
Thread finger bracket
Screw
Washer
Thread finger
1
2
2
2
2
2
2
2
2
2
2
2
2
2
15.
16.
17.
18.
19..
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
1WF2-074
1WF2-062
1WF2-034
1WF2-033
1WF2-077
1WF2-067
1WF2-066
1WF2-044
1WF2-068
1WF2-052
1WF2-078
1WF2-009
1WF2-079
Springy washer
Nut
Bushing
Set screw
Washer
Tension screw for hook saddle
Bushing
Adjusting nut
Adjusting screw
Screw
Left hook saddle
Screw
Spiral gear
Screw
Spiral gear
2
2
2
2
2
2
2
2
2
2
1
2
2
8
2
30.
31.
1WF2-055
1WF2-035
Feed link
Left bushing for rock shaft
-32-
1
1
Page 37
6. MSK-8420B Rock Shaft And Thread Looping Parts
6
6
28
27
26
29
28
5
3
4
2
1
24
7
8
19
20
23
9
10
11
12
13
14
15
16
17
18
21
22
25
31 32 33 34 35 36 37
38
39
40
41
42
43
53
44
54
45
46
30
47
48
49
50
51
52
£-33£-
Page 38
6. MSK-8420B Rock Shaft And Thread Looping Parts
Item Part number
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
1WF2-036
1WF2-056
1WF2-006
1WF2-019
1WF2-057
1WF2-058
1WF4-041
1WF4-042
1WF4-010
1WF4-011
1WF4-012
Description P cs
Oil wick
Rock shaft
Feed dog lift cam
Set screw
Right bushing for rock shaft
Oil wick
Split stop ring
Spring
Button
Set screw
Feed cam
Feed link
Needle bearing
Spring stop ring
1
1
1
1
1
1
1
1
2
1
1
1
1
1
46.
47.
48.
49.
50.
51.
52.
53.
54.
1WF2-055
1WF2-051
1WF2-009
1WF2-052
1WF2-050
1WF2-049
1WF4-044
1WF4-043
Middle bushing assembly for rock shaft
Rear bushing for rock shaft
Screw
Set screw
Ball bearing for rock shaft
Bearing press ring
Set screw
Oil wick
Feed link pin
1
1
1
1
1
3
1
1
1
-34-
Page 39
7.MSK-8400B Rock Shaft And Thread Looping Parts
7
6
27
26
25
28
27
5
3
4
2
1
24
7
8
19
20
23
9
10
11
12
13
14
15
16
17
18
21
22
30 31 32 33 34 35 36
37
38
39
40
-35-
41
42
52
43
53
44
45
29
46
47
48
49
50
51
Page 40
7.MSK-8400B Rock Shaft And Thread Looping Parts
Item Part number Description P cs
10.
11.
12.
13.
14.
15.
1.
2.
3.
4.
5.
6.
7.
8.
9.
1WF2-063
1WF2-060
1WF2-059
1WF2-061
1WF2-064
1WF2-065
1WF2-070
1WF2--069
1WF2-072
1WF2-071
1WF2-075
1WF5-026
1WF2-076
Right hook saddle
Screw
Upper bushing of hook saddle
Lower bushing of hook saddle
Hook assembly
Bobbin
Oil wick
Hinge shaft
Screw
Connecting lever
Thread finger bracket
Screw
Washer
Thread finger
Springy washer
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
1WF2-074
1WF2-062
1WF2-034
1WF2-033
1WF2-077
1WF2-067
1WF2-066
1WF2-044
1WF2-052
1WF2-078
1WF2-009
1WF2-079
1WF2-055
1WF2-035
Nut
Bushing
Set screw
Washer
Tension screw for hook saddle
Bushing
Adjusting nut
Adjusting screw
Screw
Screw
Spiral gear
Screw
Spiral gear
Feed link
Left bushing for rock shaft
1
1
1
1
1
1
1
1
1
1
1
4
2
1
1
31.
1WF2-036
Oil wick
-36-
1
Page 41
7.MSK-8400B Rock Shaft And Thread Looping Parts
7
6
27
26
25
28
27
5
3
4
2
1
24
7
8
19
20
23
9
10
11
12
13
14
15
16
17
18
21
22
30 31 32 33 34 35 36
37
38
39
40
-37-
41
42
52
43
53
44
45
29
46
47
48
49
50
51
Page 42
7.MSK-8400B Rock Shaft And Thread Looping Parts
Item Part number Description P cs
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
1WF2-056
1WF2-006
1WF2-019
1WF2-057
1WF2-058
1WF2-041
1WF4-0421WF4-042
1WF4-010
1WF4-011
1WF4-012
1WF2-055
1WF2-051
Rock shaft
Feed dog lift cam
Set screw
Right bushing for rock shaft
Oil wick
Split stop ring
Spring
Button
Set screw
Feed cam
Feed link
Needle bearing
Spring stop ring
Middle bushing assembly for rock shaft
Rear bushing for rock shaft
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
47.
48.
49.
50.
51.
52.
53.
1WF2-009
1WF2-052
1WF2-050
1WF2-049
1WF4-044
1WF4-043
Screw
Set screw
Ball bearing for rock shaft
Bearing press ring
Set screw
Oil wick
Feed link pin
1
1
1
1
3
1
1
-38-
Page 43
8.Stitch Length Adjusting Parts
8
3
24
4
30
29
11
1
2
5
6
16
15
4
3
5
6
18
17
7
8
9
8
7
9
19
20
10
2
12
13
14
28
26
27
24
25
22
2
23
21
-39-
Page 44
8.Stitch Length Adjusting Parts
Item Part number Description P cs
10.
11.
12.
13.
14.
15.
1.
2.
3.
4.
5.
6.
7.
8.
9.
1WF4-025
1WF4-030
1WF4-026
1WF4-014
1WF4-028
1WF4-046
1WF4-047
1WF4-027
1WF4-021
1WF4-048
1WF4-040
1WF4-049
1WF4-050
1FW4-051
1WF4-024
Stitch length adjusting swing lever
Screw
Set screw
Stitch length link
Stitch length link eccentric shaft
Reverse sewing shaft
Reverse sewing crank
Tension screw
Set screw
Reverse sewing lever
Sliding block
Spring
Spring holder
Screw
Stop pin
1
5
1
1
1
1
1
1
1
1
2
1
1
1
1
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
1WF5-006C3
1WF4-023
1WF4-022
1WF5-009
1WF4-013
1WF4-015
1WF2-038
1WF4-016
1WF4-053
1WF4-057
1WF4-045
1WF4-039
1WF4-056
1WF1-011
Pin spring
Stitch length adjusting bolt
O-gasket
Stitch length dial
Screw
Stitch length adjusting crank shaft
Stitch length adjusting crank
Tension screw
Set screw
Collar
Reverse sewing adjusting stand
Oil wick
Oil wick
Sliding block guide
Tension screw
1
1
1
1
1
1
1
1
3
1
1
1
1
2
4
-40-
Page 45
9.Presser Foot Lift Parts
9
28
19
27
28
26
24
2
1
11
3
5
4
6
8
10
12
14
13
23
22
21
20
18
19
32
17
29
7
9
16
15
49
30
31
33
34
35
36
-41-
37
38
39
40
41
48
47
42
43
44
45
46
Page 46
9.Presser Foot Lift Parts
Item Part number Description P cs
10.
11.
12.
13.
14.
15.
16.
1.
2.
3.
4.
5.
6.
7.
8.
9.
1WF5-040
1WF5-039
1WF3-011
1WF3-010
1WF3-013
1WF3-014
1WF3-012
1WF3-015
1WF3-016
1WF3-018
1WF3-017
1WF3-019
1WF3-021
1WF3-020
1WF3-024
1WF3-025
Sliding block rail
Screw
Screw
Nut
Screw
Spring
Knee lift lever
Pressure adjusting screw
Pressure bar spring lever
Screw
Screw
Knee control crank assembly
Knee lift prop rod
Split pin
Stop collar
Screw
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
1WF3-001(9WF3-001)
1WF3-002
1WF3-004
1WF3-005
1WF2-006
1WF3-023
1WF3-022
1WF3-007
1WF3-008
1WF3-009
1WF3-003
1WF3-023
1WF3-006
22F9-012
58F0-001A1
58F0-001
Presser foot
Set screw
Bushing for presser bar shaft
Springy lever holder
Screw
Presser foot lift lever
Screw
Thread releasing lever
Presser bar guide
Tension screw
Presser bar
Screw
Spring
Magnet
Oil reservoir
Oil gasket
1
1
2
1
1
1
1
1
1
1
1
2
1
1
1
1
-42-
Page 47
9.Presser Foot Lift Parts
9
28
19
27
28
26
24
2
1
11
3
5
4
6
8
10
12
14
13
23
22
21
20
18
19
32
17
29
7
9
16
15
49
30
31
33
34
35
36
-43-
37
38
39
40
41
48
47
42
43
44
45
46
Page 48
9.Presser Foot Lift Parts
Item Part number Description P cs
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
22T9-001A2
22T9-001A3
1WF3-028
22T9-001A9
22T9-001A10
22T9-007C2
22T9-001A7
1WF3-027
22T9-003B4
22T9-003B3
22T9-003B2
22T9-003B7
22T9-003B6
22T9-003B5
Screw
Washer
Retain ring
Knee lifter stop bracket
Adjust screw
Adjust nut
Screw
Position spring
Hinge pin
Screw
Connector
Bent rod
Screw
Knee lifter bell bracket
Bell
1
1
1
1
2
2
1
1
1
2
1
1
1
1
1
48.
49.
22T9-003B8
1WF3-026
Pat
Knee lifter prop ear
1
1
-44-
Page 49
10.MSK-8420B Lubrication Parts
10
39
11
9
26
49
12
21
20
3
4
2
1
40
41
42
47
23
6
5
16
44
43
45
7
46
8
48
10
21
20
13
14
26
27
28
25
24
15
16
17
18
19
20
21
22
23
16
38 23
37
36 23
-45-
35
34
16
31
32
33
16
30
29
Page 50
10.MSK-8420B Lubrication Parts
Item Part number Description P cs
10.
11.
12.
13.
14.
15.
1.
2.
3.
4.
5.
6.
7.
8.
9.
1WF6-001
1WF6-034
1WF6-003
1WF6-005A
1WF6-004
1WF6-007
1WF6-008
1WF6-009
1WF6-006
1WF6-010
1WF6-011
1WF6-002
1WF6-013
1WF6-012
Oil felt press spring
Screw
Oil felt
Oil pipe
Oil wick
Oil cup
Oil cup cover
Screw
Spring pin
Wick press spring
Oil pipe
Oil drain pipe
Oil wick
Oil pipe position finger
Needle bar oil return pipe
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
1WF1-024
1WF6-042
1WF6-014
1WF1-011
22T1-007
1WF6-021
1WF1-026
1WF2-053
1WF2-054
1WF6-027
1WF6-025
1WF6-024
1WF6-023
1WF6-026
Screw
Washer
Oil pepe clamp
Oil pipe set spring
Screw
Washer
Oil pipe end clamp
Screw
Screw
Bushing
Oil pipe
Plunger
Spring
Braket for spring
Screw
10
1
1
1
4
4
1
8
2
1
2
1
1
1
1
31.
1WF6-018
Oil filter
-46-
1
Page 51
10.MSK-8420B Lubrication Parts
10
39
11
9
26
49
12
21
20
3
4
2
1
40
41
42
47
23
6
5
16
44
43
45
7
46
8
48
10
21
20
13
14
26
27
28
25
24
15
16
17
18
19
20
21
22
23
16
38 23
37
36 23
-47-
35
34
16
31
32
33
16
30
29
Page 52
10.MSK-8420B Lubrication Parts
Item Part number Description P cs
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
1WF6-019
1WF6-020
1WF6-017
1WF6-028
1WF6-035
1WF6-036
1WF6-038
1WF6-041
1WF6-040
1WF6-039
1WF6-034
1WF6-032
1WF6-037
1WF6-033
1WF6-030
Washer
Filter screw
Oil filter bracket
Oil pipe clamp
Oil pipe
Oil pipe clamp
Oil tray assembly
Oil wick
Oil pipe
Oil pipe
Pipe clamp
Oil pipe
Oil wick
Oil wick
3-nozzle oil mouth bracket
1
1
1
1
1
3
2
1
1
1
3
2
1
1
1
47.
48.
49.
1WF6-031
1WF6-029
1WF6-015
Oil pipe clamp
3-nozzle oil mouth bracket
Oil filter bracket
1
1
1
-48-
Page 53
11.MSK-8400B Lubrication Parts
11
2
1
39
40
41
3
4
45
23
5
43
42
44
6
7
8
10
21
20
11
9
26
46
12
21
20
13
14
26
25
24
15
16
17
18
19
20
21
22
23
16
38
23
37
36
23
-49-
35
34
16
31
32
33
16
27
28
29 30
Page 54
11.MSK-8400B Lubrication Parts
Item Part number Description P cs
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
1WF6-001
1WF6-034
1WF6-003
1WF6-005A
1WF6-004
1WF6-007
1WF6-008
1WF6-009
1WF6-006
1WF6-010
1WF6-011
1WF6-002
1WF6-013
1WF6-012
Oil felt press spring
Screw
Oil felt
Oil pipe
Oil wick
Oil cup
Oil cup cover
Screw
Spring pin
Wick press spring
Oil pipe
Oil drain pipe
Oil wick
Oil pipe position finger
Needle bar oil return pipe
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
1WF1-024
1WF6-042
1WF6-014
1WF1-011
22T1-007
1WF6-021
1WF1-026
1WF2-053
1WF2-054
1WF6-027
1WF6-025
1WF6-024
1WF6-023
1WF6-026
Screw
Washer
Oil pipe clamp
Oil pipe set spring
Screw
Washer
Oil pipe end clamp
Screw
Screw
Bushing
Oil pipe
Plunger
Spring
Braket for spring
Screw
10
1
1
1
4
4
1
8
2
1
2
1
1
1
1
31.
1WF6-018
Oil filter
-50-
1
Page 55
11.MSK-8400B Lubrication Parts
11
2
1
39
40
41
3
4
45
23
5
43
42
44
6
7
8
10
21
20
11
9
26
46
12
21
20
13
14
26
25
24
15
16
17
18
19
20
21
22
23
16
38
23
37
36
23
-51-
35
34
16
31
32
33
16
27
28
29 30
Page 56
11.MSK-8400B Lubrication Parts
Item Part number Description P cs
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
1WF6-019
1WF6-020
1WF6-017
1WF6-028
1WF6-035
1WF6-036
1WF6-038
1WF6-041
1WF6-040
1WF6-034
1WF6-032
1WF6-037
1WF6-033
1WF6-031
1WF6-015
Washer
Filter screen
Oil filter bracket
Oil pipe clamp
Oil pipe
Pipe clamp
Oil tray assembly
Oil wick
Oil pipe
Pipe clamp
Oil pipe
Oil wick
Oil wick
Oil pipe clamp
Oil filter bracket
1
1
1
1
3
2
1
1
1
3
2
1
1
1
1
-52-
Page 57
12.Accessories
12
66
18 18
1 1
77
2 2
8 8
1919
3 3
4 4
5 5
99
1010
1111
1212
1313
1616
1515
1717
1414
-53-
Page 58
12.Accessories
Item Part number Description P cs
10.
11.
12.
13.
14.
15.
1.
2.
3.
4.
5.
6.
7.
8.
9.
33TF-010
22T9-007F1
22T9-007F2
22T9-009
22T9-010
1WF2-065
33TF-011
33TF-016
1F-009
1F-011
1F-010
33TF-012
33TF-013
33TF-014
58T0-007C
Accessories bag
Hinge pin
Hinge pin socket
Cushion
Cushion
Bobbin
Oil pot
V-belt
Needle
Hex key
Hex key
Screwdriver
Screwdriver
Screwdriver
Thread tweezer assembly
1
2
2
2
2
4
1
1
1
1
1
1
1
1
1
16.
17.
18.
19.
22T9-018
1F-012
S14420020
1F-014(33TF-019)
Arm cover
Oil tank
Bobbin winder
Thread stand
1
1
1
1
-54-
Page 59
www.reliablecorporation.com
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