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®
Juki MO-3900 Series
EXPLODED VIEW
411
MO-3900 SERIES
UPPER & LOWER LOOPER COMPONENTS
1
121-22610
Looper Shaft Rear Metal
on request
2 #06 CS-1031210-SH Thrust Collar Asm. D=10.32 W=1
4.39
3
SS-8660610-TP Screw 1/4-40 L=6
1.07
4
121-22511
Looper Shaft Front Metal
on request
5
121-22404
Upper Looper Shaft
11.39
6
SM-6061200-SP Screw
.94
7 #01 121-23055
Upper Looper Guide Asm.
152.27
8
121-23006
Upper Looper Guide Support
46.35
9
121-23204
Upper Looper Guide
115.53
10
121-22909
Upper Looper Holder
12.14
11 #02 121-23154
Upper Looper Guide Asm., B
170.93
12
121-23105
Upper Looper Guide Support, B
46.35
13
121-23204
Upper Looper Guide
115.53
14
121-22909
Upper Looper Holder
12.14
15
SS-9090410-TP Screw
1.07
16 #01 118-33704
Upper Looper Guide Cover
4.69
17 #02 B2515-704-00B Upper Looper Guide Cover B
5.12
18
SS-7060610-SP Screw 3/32-56 L=5.5
.94
19
118-33308
Upper Looper Thread Guide
4.01
20
SS-4090615-SP Screw 9/64-40 L=6
.94
21 #03 118-31757
Pin Asm.
6.42
22
115-17000
Pin C
5.10
23
118-31708
Oil WickStopper Ball
.98
24
CQ-2020000-00 Oil Wick
1.96
25
CQ-2000000-00 Oil Wick
1.96
26 #01 121-22750
Upper Looper Arm A Asm.
33.53
27
121-22701
Upper Looper Arm A
34.12
28
SS-9151210-TP Screw 15/64-28 L=11.8
3.32
29 #02 121-22859
Upper Looper Arm B Asm.
37.22
30
121-22800
Upper Looper Arm B
37.22
31
SS-9151210-TP Screw 15/64-28 L=11.8
3.32
32 #02 121-76004
Upper Looper
39.57
33 #04 118-88104
Upper Looper
22.83
34 #05 119-99208
Upper Looper
31.86
35
118-33506
Lower Looper Thread Take-Up
4.01
36
121-24004
Thread Take-Up, Right
6.85
37
SS-7110840-SP Screw 11/64-40 L=7.8
1.07
38
SS-6080410-SP Screw 1/8-44 L=4
.94
39
118-31906
Pin
1.81
40 #06 118-31807
Gauge
2.28
41 #07 119-91809
Gauge
2.04
42
R0-0371801-00 Rubber Ring
1.07
43
121-23907
Thread Guide, Right
3.61
44
SS-3090610-SP Screw 9/64-40 L=6
1.09
45
121-23808
Looper Thread Take-Up Cover
4.74
46
SM-4040655-SP Screw
.94
47
118-33407
Lower Looper Thread Guide
13.69
48
SS-3090610-SP Screw 9/64-40 L=6
1.07
49
121-23667
Oil Shield Asm.
on request
50
SS-9090610-TP Screw 9/64-40 L=5.5
2.64
51
B2530-704-000 Upper Looper Shaft Rubber Ring
5.95
52
SS-6090630-SP Screw 9/64-40 L=6
1.21
53
118-33100
Looper Thread Guide
3.61
54
SS-7090850-SP Screw 9/64-40 L=8
1.07
55
118-90001
Traveling Needle Guard
12.50
56
SS-6060440-TP Screw 3/32-56 L=3.5
.86
57
119-99307
Lower Looper
29.88
58
SS-6090620-TP Screw
.37
59
121-24103
Looper Thread Take-Up, Left
4.14
60
SS-7110840-SP Screw 11/64-40 L=7.8
1.07
61
121-23550
Lower Looper Support Arm Asm.
27.74
62
121-23501
Lower Looper Support Arm
24.84
63
PS-0300062-KH Spring Pin 3x6
1.07
64
B2531-704-000 W asher
1.94
65
SS-9151210-TP Screw 15/64-28 L=11.8
3.32
66
B2508-704-000 Oil Seal
5.02
67
121-23410
Lower Looper Shaft
on request
68 #07 CS-1031210-SH Thrust Collar Asm. D=10.32 W=1
4.39
Ref.
No.
Note Part No.
Description
Price