MTD 640 manual Model, Part, Description

Model 640

32

18

31

			2	1
			3
			4	5
		11 10	9	6
15	14	12
			7	8
		13
			20	9 18 19
			16 22
			23
	27			21

3830

34

	10	13
28	25	23
13		26
35	30
41		22

37 36

39 40

42

18		32
	31	33
	16
43
40
44	45
39

REF.	PART		REF.	PART
NO.	NO.	DESCRIPTION	NO.	NO.	DESCRIPTION
1	712-0116	Lock Jam Nut 3/8-24	27	736-0169	Lock Washer 3/8
2	756-0178	Flat Idler	28	712-0798	Hex Nut 3/8-16
3	784-5632A	Auger Idler Arm	30	784-5580	Snow Shoe
4	710-0459A	Hex Cap Screw 3/8-24 x 1.50	31	736-0242	Bell Washer
5	738-0281	Shoulder Screw	32	712-3010	Hex Nut 5/16-18
6	736-0174	Wave Washer	33	784-5581A	24” Shave Plate
7	732-0611	Extension Spring		784-5579A	26” Shave Plate
8	712-3068	Hex Nut 5/16-18		784-5582A	28” Shave Plate
9	712-3010	Hex Nut 5/16-18	34	710-0260	Carriage Bolt 5/16-18 x .62
10	736-0119	Lock Washer 5/16	35	684-0065	Impeller Assembly
11	05931	Housing	36	715-0114	Pin
12	741-0309	Ball Bearing	37	618-0120A	24” Gear Assembly
13	710-0451	Carriage Bolt 5/16-18 x .75		618-0121A	26” Gear Assembly
14	705-5226	Reinforcement Chute		618-0122A	28” Gear Assembly
15	684-0039C	24” Housing Assembly	38	605-5188A	Spiral 24” RH
	684-0040C	26” Housing Assembly		605-5192A	Spiral 26” RH
	684-0041C	28” Housing Assembly		605-5196A	Spiral 28” RH
16	712-3010	Hex Nut 5/16-18	39	736-0188	Flat Washer
18	736-0242	Bell Washer	40	741-0493A	Flange Bushing
19	741-0475	Bushing	41	605-5189A	Spiral 24” LH
20	784-5647	Chute Crank Bracket		605-5193A	Spiral 26” LH
21	731-1379C	Chute Adapter		605-5197A	Spiral 28” LH
22	712-0324	Hex Lock Nut 1/4-20	42	710-0890A	Shear Bolt 5/16-18 x 1.5
23	736-0463	Flat Washer	43	712-0429	Lock Nut 5/16-18
25	710-0703	Carriage Screw 1/4-20 x .75	44	741-0245	Hex Flange Bearing
26	710-0604A	Hex Washer TT Screw 5/16-18	45	784-5618	Bearing Housing

21