Yamato AZ7500SDR-A-8, AZ7500SDR-C-8, AZ7500SDR-C-8-53, AZ7520SDR-AY-8, AZ7500SDR-A-31 Manual

Parts List

SUPPER HIGHT SPEED SAFETY STITCH MACHINE

AZ7500SDR-8

MODELS & DEVICES

AZ7500SDR-A-8 AZ7500SDR-C-8-53 AZ7500SDR-A-31 AZ7520SDR-AY-31

AZ7500SDR-C-8 AZ7520SDR-AY-8 AZ7500SDR-C-31

K1	MT22	SC10

AZ7500SDR-A4DF-8 1 13

14 × ×

Parts No

Parts No

Parts No.( 3150023)

0063538 0063538 63538

How to use this Parts List

The illustrations on this Parts List are drawn on the basis of AZ7500SDR-A4DF-8 The items from No.1 to No.13 contain the standard model.

The following items included No.14 contain the submodel.

The dimension of Collar on this Parts List shows Inside diameter X Outside diameter X Width.

Numbers on a connector show sizes of joints.

Explanation of Marks marked at the Side of Part No.

means this part is changed from the previous Parts List.

Inside of shows the previous Part No. and the shape of screw or the like.

means this part and model is added to the previons Parts List.

How to place an order for the parts

When placing an order for the parts from this Parts List please clearly state the Parts No. e.g.3150023 which you require so that we can deliver the correct Parts to you

When the Part No. is“0063538”please place an order for the part by showing “0063538”or“63538”.

When ordering Air Tube please inform us of the Part No. and the length

This Parts Listis subject to change without notice

MISCELLANEOUS COVERS(1)		(1)	1
MISCELLANEOUS COVERS(2)		(2)	2
MISCELLANEOUS COVERS(3)		(3)	3
MISCELLANEOUS THREAD EYELETS			4
MISCELLANEOUS CRANKSHAFT BUSHINGS			5
NEEDLE BAR DRIVING MECHANISM			6
KNIFE DRIVING MECHANISM			7
PRESSER FOOT MECHANISM			8
UPPER LOOPER DRIVING MECHANISM			9
LOWER & DOUBLE CHAINING LOOPER DRIVING MECHANISM			10
FEED DRIVING CONTROL MECHANISM			11
FEED DRIVING MECHANISM			12
LUBRICATING MECHANISM			13
AZ7500SDR-8 EXCLUSIVE PARTS			14
AZ7500SDR-8-53 EXCLUSIVE PARTS			15
AZ7520SDR-8 EXCLUSIVE PARTS			16
AZ7500SDR-31, 7520SDR-31 EXCLUSIVE PARTS(1)		(1)	17
AZ7500SDR-31 EXCLUSIVE PARTS(2)		(2)	18
AZ7500SDR-31 EXCLUSIVE PARTS(3)		(3)	19
AZ7520SDR-31 EXCLUSIVE PARTS(2)		(2)	20
K1 DEV1CE		K1	21
MT22 DEVICE(1)		MT22 (1)	22
MT22 DEVICE(2)		MT22 (2)	23
SC10 DEVICE		SC10	24
MICELLANEOUS SUPPORTING BOARD			25
THREAD STAND			26
WARNING LABEL			27
LIST of MAIN SPARE PARTS			28
INDEX			29

1

AZ7500SDR-8

MISCELLANEOUS COVERS(1)			( )		1
Ref.No	Parts No.	Description			Amt. Req
1	2100006	Cloth Plate			1
2	2150735	Cloth Plate(Lower)	( )		1
3	2100014	Rubber Cushion	( )		1
4	001123	Washer			3
5	000644	Spring Washer			3
6	110045	Screw(M4-0.7×12)			3
7	2100011	Cloth Plate Eccentric Bushing			1
8	160001	Screw(M4-0.7×4)			1
9	2100012	Collar(4 × 9×6mm)			1
10	003637	Screw(1/8-44×2.5)			1
11	2150326	Cloth Plate Latch, C. Set	( )		1
12	110073	Screw(M4-0.7×5)			2
13	100001	Lock Nut			1
14	110031	Stop Screw(M4-0.7×12)			1
15	0020004	Oil Cap			1
16	2150580	O-ring(P28)	O		1
17	2150287	Top Cover			1
18	110016	Screw(M4-0.7×15)			6
19	2150026	Top Cover Gasket			1
20	2100864	Oil Reservoir Gasket			1
21	2151054	Oil Reservoir			1
22	006816	Screw(1/4-24×8)			4
23	0032879	Oil Reservoir Rubber Cushion(Black-colored)	( )		3
24	0033627	Oil Reservoir Rubber Cushion(Green-colored)	( )		1
25
26	2100875	Oil Reservoir Positioning Bar			4
27	300004	Washer			4
28	120017	Screw(M5-0.8×15)			6
29	0020137	Drain Hole Seal			1
30	005075	Drain Hole Screw(3/8-24×8)			1
31
32	2151056	Wind Guide Plate			1
33	110013	Screw(M4-0.7×8)			2
34	300043	Washer			2
35	6209401	Serial Number Plate			1
36	000726	Rivet			2
37	2150327	Cloth Plate Latch Holder			1
38	2150328	Cloth Plate Latch			1
39	2150329	Cloth Plate Latch Spring			1
40	170067	Screw(M5-0.8×6)			1

AZ7500SDR-8

2

AZ7500SDR-8

MISCELLANEOUS COVERS(2)			(2)		2
Ref.No	Parts No.	Description			Amt. Req
1	2150286	Side Cover			1
2	110013	Screw(M4-0.7×8)			6
3
4	2150018	Eye Guard Holder			1
5	170032	Screw(M4-0.7×5)			1
6	000010	Conical Spring Washer			2
7	2150125	Eye Guard			1
8	110076	Screw(M3-0.5×6)			2
9	000444	Washer			2
10	2150023	Needle Bar Oil Defender			1
11	110012	Screw(M4-0.7×5)			4
12	2150024	Needle Bar Oil Seal, C. Set	( )		1
13	190015	Screw(M14-2×6)			2
14	2150733	Logo Plate			1
15	110106	Screw(M4-0.7×8)			2
16
17
18
19	2100538	Front Cover Latch Spring			1
20	0024446	Front Cover Hook			1
21	001203	Screw(9/64-40×4.5)			1
22	0020016	Front Cover Hinge Pin			1
23	003637	Screw(1/8-44×2.5)			2
24	2150734	Front Cover			1
25	0024095	Front Cover Hinge Spring			1
26	2151055	Front Cover Hinge			1
27	2100703	Chip Guard(Openable)			1
28	110003	Screw(M3.5-0.6×6)			2
29	2129415	Model Plate			1
30	―――――	Threading Chart(See the Table)	( )		1
31	2100856	Front Cover Latch			1
32	110054	Screw(M3-0.5×3.5)			2
33	390513	Threading Chart(Left)	( )		1
34	2150028	Needle Bar Oil Seal			1
35	2150029	Needle Bar Oil Seal Long			1

Note : Order for Model Plate must be accompanied by model designation(including symbols of gauge and devices).

( ) ( )

	Models	Preta No.
		Threading Chart
	AZ7500SDR-8	390678
	AZ7500SDR-8-53	390678
	AZ7500SDR-31	390678
	AZ7520SDR-8	390687
	AZ7520SDR-31	390687

AZ7500SDR-8

3

AZ7500SDR-8

MISCELLANEOUS COVERS(3)			(3)		3
Ref.No	Parts No.	Description			Amt. Req
1	2100035	Feed Mechanism Cover			1
2	2100921	Feed Mechanism Cover Gasket			1
3	110048	Screw(M4-0.7×10)			5
4	2100047	Rubber Cushion	( )		1
5	2110027	O-ring(P52)	O		1
6	2110026	Ball Bearing Holder			1
7	110013	Screw(M4-0.7×8)			7
8	2100318	Fan Cover			1
9	110012	Screw(M4-0.7×5)			2
10	150004	Screw(M4-0.7×6)			1
11
12	2150022	Pushbutton			1
13	2150583	Oil Seal			1
14	0033024	Retaining Ring			2
15	0068517	Pushbutton Spring			1
16	330008	Seal Plug			1
17	330000	Seal Plug			1
18	2150017	Fabric Guide Plate			1
19	110064	Screw(M4-0.7×8)			2
20	2100918	Tail Cover Gasket			1
21	2100037	Tail Cover			1
22	2150069	Seal Plug			1
23	2100960	Ball Bearing Housing			1
24	2100874	Ball Bearing Housing Gasket			1
25	130003	Screw(M4-0.7×7.3)			3
26	0093528	Looper Thread Pipe Stay			1
27	0021735	Looper Thread Pipe			1

AZ7500SDR-8

4

AZ7500SDR-8

MISCELLANEOUS THREAD EYELETS					4
Ref.No	Parts No.	Description			Amt. Req
1	2160122	Thread Guide Plate			1
2	110013	Screw(M4-0.7×8)			3
3	0024084	Thread Tension Spring Cap	( )		4
4	0024083	Tension Spring Bushing			4
5	0024157	Tension Spring(Lower Looper Thread)			1
6	0020118	Thread Tension Spring Retainer	( )		4
7	000178	Felt			4
8	0031111	Tension Disc			8
9	000177	Felt			4
10	190016	Tension Post			4
11	0032962	Tension Disc Eyelet			3
12	0032952	Tension Spring(Upper Looper Thread)			1
13	0030255	Tension Spring(Double Chain Thread)	( )		1
14	0024156	Tension Spring(Needle Thread)			1
15	2150116	Tension Disc Eyelet for Needle Thread			1
16	0022215	Looper Thread Pipe			2
17	2100404	Double Chaining Looper Thread Eyelet(Rear)	( )		1
18	110009	Screw(M4-0.7×8)			3
19	2150030	Oil Container	SP		1
20	2150031	Oil Container Plug			1
21	310105	Felt	SP		1
22	2150032	Felt Holder	SP		1
23
24	2150124	Needle Thread Eyelet Holder			1
25	110001	Screw(M4-0.7×5.4)			3
26	2150115	Needle Thread Eyelet(Right)	( )		1
27	006035	Screw(9/64-40×7)			1
28	000644	Spring Washer			1
29	000322	Nut			1
30	2150167	Needle Thread Eyelet Holder(Double Chain)			1
31	2150162	Needle Thread Eyelet(Right)(Double Chain) ( )			1
32	110002	Screw(M3-0.5×5)			1
33	2150131	Needle Thread Eyelet(Left)	( )		1
34	130026	Screw(M4-0.7×5.8)			1
35	2150173	Needle Thread Eyelet(Left)(Double Chain)	( )		1
36	2150284	Needle Thread Pull-off			1
37	110064	Screw(M4-0.7×8)			1
38	000653	Knock Pin			1
39	2150165	Double Chaining Looper Thread Eyelet(Left)	( )		1
40	110008	Screw(M4-0.7×5)			2

Ref. No 41 to 74 See the following page.

AZ7500SDR-8

4

AZ7500SDR-8

MISCELLANEOUS THREAD EYELETS					4
Ref.No	Parts No.	Description			Amt. Req
41	2150151	Thread Eyelet Stopper			1
42	110091	Screw(M3-0.5×3)			1
43	0020123	Tension Disc Eyelet			1
44	190002	Tension Post			1
45	0020124	Tension Disc			2
46	0020125	Double Chaining Looper Tension			1
47	0020126	Tension Spring Bushing			1
48	000182	Adjusting Nut			1
49	0020167	Double Chaining Looper Thread Eyelet			1
50	009853	Screw(11/64-40×6.5)			1
51	0020165	Thread Eyelet Bracket			1
52	000010	Conical Spring Washer			1
53	190000	Screw(M4-0.7×7)			1
54	0020166	Thread Retaining Finger			1
55	2150176	Thread Retainer Plate Support			1
56	2150107	Thread Retainer Plate			1
57	2150108	Thread Retainer Spring			1
58	170060	Screw(M2.5-0.45×4)			1
59	2150478	Looper Holder Cover			1
60	2150582	Looper Driving Shaft Oil Seal			1
61	2100229	Looper Holder Cover Spacer(Rubber)			1
62	2150425	Looper Thread Eyelet(Left)	( )		1
63	130020	Screw(M4-0.7×6.3)			1
64
65	2150481	Lower Looper Thread Eyelet			1
66	2150422	Upper Looper Thread Eyelet			1
67	000014	Washer			2
68	110026	Screw(M3-0.5×6)			1
69	110036	Screw(M3-0.5×6.5)			1
70	2150482	Spacer			1
71	2150479	Looper Holder Auxiliary Cover			1
72	110085	Screw(M3-0.5×4.5)			2
73	000644	Spring Washer			1
74	110064	Screw(M4-0.7×8)			1

AZ7500SDR-8

5

AZ7500SDR-8

MISCELLANEOUS CRANKSHAFT & BUSHINGS						5
Ref.No	Parts No.	Description			Amt. Req
1	2150738	Machine Pulley				1
2	160007	Screw(M6-1 × 6)				5
3	2150461	Oil Cooling Fan				1
4	160001	Screw(M4-0.7×4)				7
5	2110184	Wave Washer				1
6	2110183	Mechanical Oil Shield				1
7	3100131	Crankshaft Ball Bearing(Right)	( )			1
8	3100129	Bearing Adapter				1
9	2150096	Oil Pump Driving Worm				1
10	2150602	Crankshaft Bushing				1
11	2150712	Crankshaft				1
12	2150209	Pin				1
13
14	160027	Screw(M3-0.5×3)				5
15	2100872	Crankshaft Ball Bearing(Left)	( )			1
16	2150551	Double Chaining Looper Thread Take-up				1
17	2100410	Thread Take-up Pin				1
18	2150187	Crankshaft Bushing				1
19	2100105	Upper Knife Driving Shaft Bushing(Right)	( )			1
20	2150043	Upper Knife Feed Bar Driving Shaft Bushing				2
21	2100117	Upper Knife Driving Shaft Oil Seal				1
22	2150049	Needle Bar Driving Shaft Bushing(Right) ( )				1
23	2150048	Needle Bar Driving Shaft Bushing(Left)	( )			1
24	003636	Cap Screw(5/16-32×3.5)				1
25	000526	Gasket				1
26
27	310109	Oil Wick				1
28
29	2150046	Upper Looper Driving Shaft Bushing(Front) ( )				1
30	2150047	Upper Looper Driving Shaft Bushing(Rear) ( )				1
31	2150581	Looper Driving Shaft Oil Seal				1
32	2150044	Lower Looper Driving Shaft Bushing(Front) ( )				1
33	2150045	Lower Looper Driving Shaft Bushing(Rear) ( )				1
34	2150584	Looper Shaft Oil Seal				1
35	2100412	Double Chaining Looper Shaft Bushing(Front)	( )			1
36	2100413	Double Chaining Looper Shaft Bushing(Rear)	( )			1
37	2150042	Feed Bar Driving Shaft Bushing(Left)	( )			1
38	2150069	Seal Plug				1
39	2100414	Looper Rocker Shaft Bushing				2
40	2100417	Seal Plug				1
41	2100098	Control Lever Shaft Bushing				1

AZ7500SDR-8

6

AZ7500SDR-8

NEEDLE BAR DRIVING MECHANISM					6
Ref.No	Parts No.	Description			Amt. Req
1	2150105	Needle Bar Driving Connecting Rod			1
2	120049	Screw(M4-0.7×16)			2
3	2100144	Needle Bar Driving Connecting Rod Pin			1
4	160002	Screw(M4-0.7×5)			1
5	2150512	Needle Bar Driving Lever			1
6	120006	Screw(M6-1 × 12)			1
7	2100137	Collar(12 × 20×10mm)			1
8	160003	Screw(M5-0.8×5)			2
9	2150054	Needle Bar Crank Arm, C. Set	( )		1
10	2150053	Needle Bar Driving Shaft			1
11	2100136	Needle Bar Crank Arm			1
12	300008	Washer			1
13	140003	Screw(M6-1×18)			1
14	2100138	Needle Bar Connecting Link			1
15	2100176	Needle Bar Connecting Link Pin			2
16	310089	Oil Wick			2
17	2150051	Needle Bar Connecting Bracket			1
18	110006	Screw(M3.5-0.6×10)			1
19	160016	Screw(M4-0.7×4.5)			2
20	2150050	Needle Bar & Needle Bar Bushing, C. Set	& ( )		1
21	2159115	Needle Clamp(A)			1
22	―――――	Needle(System : DC×27)			2
23	001900	Screw(1/8-44×2.4)			2
24	2150057	Stitch Plate Support Stay, C. Set	( )		1
25	2150058	Stitch Plate Support Stay			1
26	000035	Roll Pin			1
27	110009	Screw(M4-0.7×8)			6
28	2100502	Stitch Plate Support(Rear)	( )		1
29	110001	Screw(M4-0.7×5.4)			1
30	2158050	Stitch Plate(A4)			1
31	005345	Screw(11/64-40×8.3)			2
32	2100145	Stitch Plate Support(Front)	( )		1
33	110011	Screw(M5-0.8×10)			2
34	0032604	Rubber Cushion			1
35	2109211	Needle Guard(Front)(Double Chain Stitch) ( )			1
36	110002	Screw(M3-0.5×5)			1
37	2150035	HR Unit, Complete Set	HR ( )		1
38	3100370	Tube Joint			1
39	2100152	Oil Tube(70mm)	(70mm)		1
40	310005	Oil Wick			1

Ref. No 41 to 54 See the following page.

AZ7500SDR-8

6

AZ7500SDR-8

NEEDLE BAR DRIVING MECHANISM					6
Ref.No	Parts No.	Description			Amt. Req
41	2100533	HR Felt Holder	HR		1
42	310001	HR Felt	HR		1
43	2100535	HR Felt Holder Bracket, C. Set	HR ( )		1
44	2100536	HR Felt Holder Bracket	HR		1
45	000393	Roll Pin			1
46	110013	Screw(M4-0.7×8)			1
47	320018	Fitting Stud(Short)	( )		1
48	000567	Seal			1
49	2150150	HR Unit Bracket	HR		1
50	2109212	Needle Guard(Rear)(Double Chain Stitch) ( )			1
51	007627	Screw(M4-0.7×6)			2
52	2129200	Needle Guard(Front)(Overlock Stitch)	( )		1
53	110027	Screw(M2.5-0.45×3.5)			2
54	300067	Spacer			1

AZ7500SDR-8

7

AZ7500SDR-8

KNIFE DRIVING MECHANISM					7
Ref.No	Parts No.	Description			Amt. Req
1	2150428	Upper Knife Driving Connecting Rod			1
2	120049	Screw(M4-0.7×16)			2
3	2100173	Driving Lever Pin			1
4	160002	Screw(M4-0.7×5)			1
5	2100162	Upper Knife Driving Lever			1
6	120006	Screw(M6-1 × 12)			1
7	2100161	Collar(10 × 19×9mm)			1
8	160003	Screw(M5-0.8×5)			2
9	2150060	Upper Knife Driving Shaft			1
10	2100165	Upper Knife Holder Positioner			1
11	2100418	Upper Knife Holder(Flat Type)	( )		1
12	110043	Screw(M4-0.7×14)			1
13	0020496	Upper Knife(Flat Type)	( )		1
14	000532	Washer			1
15	110004	Screw(M3.5-0.6×8)			1
16	3500015	Seal Plug			1
17	2150020	Lower Knife Holder Spring Stop			1
18	110012	Screw(M4-0.7×5)			3
19	2100174	Cloth Plate Rubber Cushion			1
20	2150019	Front Cover			1
21	110001	Screw(M4-0.7×5.4)			2
22	180040	Screwed Pin			1
23	2150021	Lower Knife Holder Locking Plate			1
24	0032919	Lower Knife Holder Spring			1
25	2100419	Lower Knife Holder			1
26	110046	Screw(M5-0.8×12)			1
27	000688	Guide Pin			1
28	2100167	Lower Knife			1
29	2100168	Lower Knife Clamp			1
30	140014	Screw(M4-0.7×8)			1

AZ7500SDR-8

8

AZ7500SDR-8