MTD 21A-450 Series manual MODEL 450 SERIES

MODEL 450 SERIES

REF.			REF.
NO.	PART NO.	DESCRIPTION	NO.	PART NO.	DESCRIPTION
1	611-0020	Wheel Shaft Ass’y: 33T	28	721-0378	Seal 1.0 Shaft
2	611-0021	Tine Shaft Ass’y: 18T	29	721-0379	Seal .75 Shaft
3	611-0128	Jack Shaft Ass’y	31	726-0277	Taper Cap Ring
4	611-0129	Input Shaft Ass’y	32	732-0496	Compression Spring .50" Lg.
5	617-0058	Rev. Idler Gear Ass’y: 30T	33	736-0163	Thrust Wash. 1.03" I.D. x 1.62" O.D.
6	617-0059	Ftine Idler Gear Ass’y: 30T	34	736-0351	Fl-Wash .76" I.D. x 1.5" O.D.
7	617-0060	Tine Input Sprocket Ass’y: 9T	35	736-0407	Bell-Wash .45" I.D. x 1.0"
8	617-0061	Wheel Input Sprocket Ass’y: 10T	36	736-0518	Thrust Wash. .445 x 1.92 x .060
9	617-0062	Gear Ass’y: 11T	37	736-3088	Fl-Wash. .635" I.D. x 1.59 O.D.
10	686-0108	R.H. Housing Ass’y	40	738-0645	Detent Shaft 1/2" Dia.
11	710-0376	Hex Bolt 5/16-18 x 1" Lg.	41	738-0648	Jack Shaft .625 x 2.385
12	710-0599	Hex S-Tap Scr. 1/4- 20 x .5"	42	738-1013	Jack Shaft .625 x 5.0
13	710-0604	Hex S-Tap Scr. 5/16-18 x .625"	43	741-0124	Ball Bearing
14	710-3008	Hex Bolt 5/16-18 x .75"	44	741-0420	Flange Bearing 1.0 x 2.5 x 1.38
15	711-1349	Input Shaft	45	741-0421	Flange Bearing .75 x 2.5 x 1.38
16	712-0378	Hex Nut 7/16-20	46	741-0563	Ball Bearing . 6692 x 5745 x .466
17	712-3004A	Flange Nut 5/16-18	47	741-0862	Detent Ball .250
18	713-0367	#420 Chain 1/2 Pitch x 50 Links	48	750-0258	Spacer .315
19	713-0484	#50 Chain 5/8 Pitch x 54 Links	49	750-0570	Spacer 1.0 I.D x 2.0 O.D. x .440
20	716-0865	Snap Ring	50	750-0664	Spacer .505 I.D. x .88 O.D. x .440
21	717-0853	Shifting Fork	51	750-0671	Spacer .75 x 2.0 x .50
22	717-1582	Spur Gear 44T	52	786-0171	L.H. Chain Case Ass’y
23	717-1583	Spur Gear 30T	53	786-0238	Gear Positioner Bracket
24	717-1584	Spur Gear 30T	-	737-0300	Benelene 920 Grease
25	717-1585	Spur Gear 44T	-	737-0288	Never Seez Grease
26	717-1587	Spur Gear 44T	-	686-0107	Gear Case Assembly Complete
27	717-1594	Spur Gear 16T

NOTE: For painted parts, please refer to the list of color codes below. Please add the applicable color code, wherever needed, to the part number to order a replacement part. For instance, if a part numbered 700-xxxx is painted Oyster Gray, the part number to order would be 700-xxxx-0662.

Black — 0691; Black, Powder — 0637; Blue, Midnight — 0667; Charcoal — 0483; Grey — 0648;

Grey, Oyster — 0662; Orange — 0606; Red — 0650; Red, MTD — 0638; Silver — 0629; Yellow — 0674.

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