Juki MB-1373, MB-1377 Parts Book
MODEL : MB-1373/MB-1377
List No : 1493-02
PARTS LIST
Published:01/09/2018
CONTENTS
BUTTON CLAMP MECHANISM COMPONENTS ....................................................................................................... 1
ARM & MISCELLANEOUS COVERS COMPONENTS.............................................................................................. 3
LOOPER SHAFT MECHANISM COMPONENTS ........................................................................................................ 7
NIPPER & THREAD TENSION PARTS COMPONENTS ......................................................................................... 9
FEED PLATE COMPONENTS ............................................................................................................................................
BUTTON CLAMP LIFTER COMPONENT......................................................................................................................
NEEDLE DRIVING PULLEY SHAFT COMPONENTS ...............................................................................................
NEEDLE BAR DRIVING MECHANISM COMPONENTS ...........................................................................................
STOP MOTION MECHANISM COMPONENTS ...........................................................................................................
STITCH SELECTING PARTS COMPONENTS............................................................................................................
THREAD BIND NOTCH COMPONENTS(FOR MB-1377).......................................................................................
THREAD STAND COMPONENTS.....................................................................................................................................
TABLE & STAND COMPONENTS....................................................................................................................................
ACCESSORIE PARTS COMPONENTS ..........................................................................................................................
SPECIAL ORDER SPEC COMPONENTS......................................................................................................................
SUBCLASS COMPONENTS(FOR MB-1373-11) .......................................................................................................
HOW TO MAKE USE OF THIS PARTS LIST ...............................................................................................................
13
17
21
23
25
27
29
31
33
35
37
39
41
TOC - 1
15
15
29
28
20
6
23
3
5
4
11
9
12
8
10
27
32
31
14
13
18
18
21
22
7
16
19
17
25
26
24
30
2
1
BUTTON CLAMP MECHANISM COMPONENTS
- 1 -
BUTTON CLAMP MECHANISM COMPONENTS
No. Parts No. Parts name Remarks Level Cons Qty
1 26026856 PICK-UP DEVICE ASM. 1
2 40041058 BUTTON CLAMP LIFTING HOOK * 1
3 SS7150940SP SCREW 15/64-28 L=9 * 1
4 SS9621413SP SCREW 3/16-32 L=13.5 * 2
5 WP0501016SD WASHER 5X10.5X1 * 2
6 26025502 BUTTON CLAMP HOLDER * 1
7 SS7090410SP SCREW 9/64-40 L= 3.5 * 1
8 SD0550301SP HINGE SCREW D=5.5 H=3 * 1
9 26025403 JAW LEVER HOLDER * 1
10 SD0550181SP HINGE SCREW D= 5.50 H= 1.8 * 1
11 26025809 CLAMP SCREW A * 1
12 26025700 SNAP FASTENER CLAMP STOP LEVER * 1
13 26026005 NUT * 1
14 26025908 BUTTON CLAMP SLIDE * 1
15 26026609 BUTTON CLAMP STOP PIN * 2
16 26026104 BUTTON CLAMP LEVER JAW (LEFT) * 1
17 26026203 BUTTON HOLDING SPRING, LEFT * 1
18 SD0640391TP HINGE SCREW D= 6.35 H= 3.9 * 2
19 SS7090410SP SCREW 9/64-40 L= 3.5 * 1
20 26026708 BUTTON CLAMP SPRING * 1
21 26026302 BUTTON CLAMP LEVER JAW RIGHT * 1
22 26026401 BUTTON HOLDING SPRING, RIGHT * 1
23 SS7150940SP SCREW 15/64-28 L=9 * 1
24 40040938
25 26027102 PRESSURE ADJUSTING SPRING 1
26 NM6060001CP NUT M6 2
27 26027409 FINGER GUARD 1
28 40041069 SPRING_HOLDING_PLATE 1
29 26025205 HINGE PIN 1
30 B2541372000 SNAP RING 1
31 NM6060001CP NUT M6 1
32 40040937 PICK_UP_DEVICE_STOPPER_PIN 1
BUTTON_CLAMP_PRESSURE_ADJUSTIN
1
- 2 -
27･28
13
51
32
32
41
31
24
1
44
37
50
14
14
16
25
7
8
9
11
10
12
34
18
29
36
15
33
33
19
22
23
40
38
35
43
20
21
47
48
46
45
2
2
6
5
3
4
49
39
42
30
17
26
ARM & MISCELLANEOUS COVERS COMPONENTS
- 3 -
ARM & MISCELLANEOUS COVERS COMPONENTS
No. Parts No. Parts name Remarks Level Cons Qty
1 40038426 FACE_PLATE_COMPL. 1
2 SM4040855SP SCREW 4
3 26021600 TENSION SPRING 1
4 26032003 NIPPER RELEASING STUD 1
5 SM6040650TP SCREW 1
6 26031203 THREAD GUIDE NO.4 1
7 26031351 THREAD TENSION NO.3 ASM. 1
8 26031302 TENSION ADJUSTING BASE NO.3 * 1
9 26031401 THREAD PRESSER PLATE * 1
10 26031500 TENSION SPRING B * 1
11 26031609 THREAD TENSION STUD * 1
12 26031708 THREAD TENSION NUT * 2
13 RE0200000K0 E-RING 2 * 1
14 SM4040855SP SCREW 8
15 TA2050406R0 RUBBER PLUG 1
16 40040931 SIDE_COVER_RIGHT 1
17 CM301300001 SAFETY LABEL 1
18 40040932 SIDE_COVER_LEFT 1
19 SM6083042CH SCREW M8 L=30 4
20 26033704 STOPPER 1
21 SM6050800SP SCREW M5 L=8 2
22 26011205 GUIDE PIN 2
23 40038483 SET_SCREW 1
24 40038431 BED_OIL_SHIELD 1
25 SM8060610TP SCREW 1
26 40041022 BUTTON_TRAY_ASM. 1
27 26022608 CAM INDICATING PIN A SELECTIVE PARTS 2
28 26022707 CAM INDICATING PIN B SELECTIVE PARTS 2
29 WS0650389KP SPRING WASHER 6.5X14.0X17 1
30 40038425 SIDE_COVER_LEFT 1
31 40038430 LOOPER_COVER 1
32 40041067 SIDE_COVER_SPRING 2
33 SM6040600SP SCREW M4 L=6 2
34 SM4040855SP SCREW 2
35 40038173 OIL_DRIP_FELT 1
36 SD0600277TP SHOULDER SCREW D=6 H=2.7 1
37 40038424 SIDE_COVER_RIGHT 1
38 40040936 SIDE_COVER_HINGE_SHAFT_RIGHT 2
39 40040935 SIDE_COVER_HINGE_SHAFT_LEFT 1
40 SM8060612TP SCREW M6 L=6 1
41 40038446 MACHINE_SUB_BASE 1
42 SM8060612TP SCREW M6 L=6 1
43 40038471 SUSPENSION_SCREW_B 1
44 40054729 ASSY SAFETY PLATE 1
45 40054730 SAFETY PLATE INSTALLING BASE * 1
46 26037200 SAFETY PLATE * 1
47 SM4040655SP SCREW M4 L=6 * 2
- 4 -
27･28
13
51
32
32
41
31
24
1
44
37
50
14
14
16
25
7
8
9
11
10
12
34
18
29
36
15
33
33
19
22
23
40
38
35
43
20
21
47
48
46
45
2
2
6
5
3
4
49
39
42
30
17
26
ARM & MISCELLANEOUS COVERS COMPONENTS
- 5 -
ARM & MISCELLANEOUS COVERS COMPONENTS
No. Parts No. Parts name Remarks Level Cons Qty
48 WP0430800SD WASHER M4 * 2
49 TA1250406R0 RUBBER PLUG D=12.5 L=4 2
50 PS0500102KH SPRING PIN 5.0X10 1
51 RE0320000K0 E-RING 3.2 1
- 6 -
2
32
41
42
44
45
45
43
40
39
13
37
38
38
33
34
35
35
31
30
28
29
27
26
25
22
24
23
3
1
46
10
9
5
4
6
8
11
12
7
36
19
18
17
16
15
14
20
21
LOOPER SHAFT MECHANISM COMPONENTS
- 7 -
LOOPER SHAFT MECHANISM COMPONENTS
No. Parts No. Parts name Remarks Level Cons Qty
1 CS079072ATH THRUST COLLAR ASM. 1
2 CS0790721TH THRUST COLLAR D=7.94 W=7 * 1
3 SS7090620TP SCREW 9/64-40 L=6.1 * 1
4 SM6040800SP SCREW 1
5 40038484 NEEDLE_GUARD 1
6 26013607 POSITIONING FINGER YOKE SLIDE 1
7 SM1040950TP SCREW M4 L=9 2
8 26013409 YOKE SLIDE INSERT 1
9 26013805 YOKE SLIDE 1
10 40038400
11 40038403
12 SD0640246SP HINGE SCREW D=6.35 H=2.4 1
13 SM8061010TP SCREW 1
14 B12413770B0 THROAT PLATE SET 1
15 B12413770A0 THROAT PLATE ASM. * 1
16 B27033770A0 THREAD BIND PLATE ASM. * 1
17 B2702377000 THREAD BIND SUPPORT PLATE * 1
18 B2410373000 COUNTER KNIFE * 1
19 SS7080310SP SCREW 1/8-44 L= 3.0 * 2
20 B24063730A0 MOVING KNIFE ASM. * 1
21 SD0600095TH HINGE SCREW D= 6 H= 0.85 * 1
22 40041106
23 26003103 LOOP POSITIONING FINGER CAM * 1
24 SS8110410TP SCREW 11/64-40 L= 3.5 * 2
25 40038482 ASSY_CAM_AND_LOOPER_SLEEVE 1
26 26015503 CAM AND LOOPER SLEEVE * 1
27 SS8150410TP SCREW 15/64-28 L= 4.0 * 2
28 26015404 LOOP POSITIONING FINGER CAM 1
29 SS8110310SP SCREW 11/64-40 L= 2.8 2
30 26015305 LOOPER SHAFT BUSHING FRONT 1
31 SM8061010TP SCREW 1
32 40038111 LOOPER_SHAFT 1
33 40098872 COLLER_ASSY 1
34 40097991 COLLER * 1
35 SS8110422TP SCREW 11/64-40 L=4 * 2
36 SM1040870TP SCREW 3
37 B12243720A0 LOOPER SHAFT DRIVEN GEAR ASM. 1
38 SS8660612TP SCREW 1/4-40 L=6 * 2
39 B1215372A00 THRUST BALL BEARING 1
40 26013102 LOOPER SHAFT BUSHING REAR 1
41 B1221373NA0 WORM WHEEL ASM. 1
42 B1221373N00 WORM * 1
43 SS6660712TP SCREW 1/4-40 L= 7.0 * 2
44 B1220372000 CAM SHAFT DRIVEN GEAR * 1
45 SS8660612TP SCREW 1/4-40 L=6 * 2
46 B1239372000 LOOPER 1
ASSY_LOOP_POSITIONING_FINGER_LEVER
LOOP_POSITIONING_FINGER_CAM_ROLL
ASSY_LOOP_POSITIONING_FINGER_CAM
* 1
1
1
- 8 -
14
17
43
46
25
57
7
3
59
35
1
47
56
55
60
48
51
49
50
44
23
13
53
54
45
15
16
52
6
4
5
9
8
18
20
20
24
19
21
22
12
11
10
2
38
39
40
42
41
37
36
34
33
31
32
58
30
29
28
27
26
NIPPER & THREAD TENSION PARTS COMPONENTS
- 9 -
NIPPER & THREAD TENSION PARTS COMPONENTS
No. Parts No. Parts name Remarks Level Cons Qty
1 SM4061255SP SCREW M6 L=12 1
2 40038205 NEEDLE_BAR_GUARD 1
3 SD0791276TP SHOULDER SCREW 1
4 NM6030001SN NUT 2
5 26020602 NUT 1
6 26000950 NIPPER COMPL. 1
7 26020503 LOOPER SHAFT BUSHING REAR 1
8 40041077 NIPPER_BAR_BLOCK_SPRING 1
9 40038492 NIPPER_BAR_BLOCK_SPRING_SCREW 1
10 SD0402001TP HINGE SCREW D=4 H=20 1
11 26020404 NIPPER SLIDE BLOCK SPRING 1
12 26020305 NIPPER BLOCK 1
13 SD0791506TP SHOULDER SCREW D=7.94 H=15 1
14 40038476 THREAD_PULL_OFF_LEVER_ASM 1
15 SD0790806TP SHOULDER SCREW D=7.94 H=8 1
16 26000455 NIPPER BAR ACTUATING LEVER ASM 1
17 26020206 THREAD GUIDE PIN 2
18 26019406 NIPPER BAR BLOCK SPRING PIN 1
19 SM6040800SP SCREW 1
20 WP0450801SP WASHER 2
21 26019307 NIPPER BAR BLOCK 1
22 26019208 TENSION LEVER ROCKING PIECE 1
23 40038479 NIPPER_BAR 1
24 SM6040800SP SCREW 1
25 40038208 TENSION_POST_ASM_NO.2 1
26 40038214 TENSION_NUT * 1
27 22921407 ROTATION STOPPER * 1
28 26019901 THREAD TENSION SPRING * 1
29 26020107 THREAD TENSION DISK PRESSER * 1
30 26005207 THREAD TENSION_DISK_NO.1 * 2
31 40038210 TENSION_POST_NO.2 * 1
32 26019802 TENSION_RELEASE_PIN * 1
33 NM6060001CP NUT M6 * 1
34 PS0300162KH SPRING PIN 3X16 1
35 SM6040800SP SCREW 1
36 WP0450801SP WASHER 1
37 26019109 THREAD TENSION RELEASING LEVER 1
38 40038404 ASSY_THREAD_TENSION_NO.1 1
39 40038408 THREAD_TENSION_NUT * 1
40 26005306 FIRST THREAD TENSION SPRING * 1
41 26005207 THREAD TENSION_DISK_NO.1 * 2
42 40038405 THREAD_TENSION_POST_NO.1 * 1
43 26019505 THREAD GUIDE 1
44 26021402 THREAD GUIDE NO.1 1
45 NM6040002SN NUT M4 1
46 SM4061255SP SCREW M6 L=12 1
47 40038396 NIPPER_BAR_BEARING_BLOCK 1
- 10 -
14
17
43
46
25
57
7
3
59
35
1
47
56
55
60
48
51
49
50
44
23
13
53
54
45
15
16
52
6
4
5
9
8
18
20
20
24
19
21
22
12
11
10
2
38
39
40
42
41
37
36
34
33
31
32
58
30
29
28
27
26
NIPPER & THREAD TENSION PARTS COMPONENTS
- 11 -
NIPPER & THREAD TENSION PARTS COMPONENTS
No. Parts No. Parts name Remarks Level Cons Qty
48 40038206 ADJUSTING_SCREW 1
49 WP0550800SP WASHER 5.5X10X0.8 1
50 SM7051460TP SCREW M5 L=14 1
51 SM6051400SP SCREW 1
52 26019000 THREAD TENSION SPRING 1
53 40038207 NIPPER_BAR_SPRING_SCREW 1
54 WP0450846SP WASHER 1
55 SM9061403CP SCREW M6 L=14 1
56 NM6060001SE NUT M6 1
57 26021105 THREAD GUIDE 1
58 40038320 LEVER 1
59 SM6040600SP SCREW M4 L=6 1
60 WP0501016SD WASHER 5X10.5X1 1
- 12 -
26～28
48･49
26～28
26～28
1･29
37･38
39･40
MB-1377
MB-1373
67
65
65
18
18
18
62
63
64
61
66
7
43
55
57
56
30
53
22
13
13
13
13
17
17
17
17
32
31
34
33
24
50
60
60
60
60
47
52
51
54
54
58
59
21
8
2
19
20
23
3
4
5
6
16
15
14
11
25
9
10
12
42
46
45
41
44
35
36
FEED PLATE COMPONENTS
- 13 -
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