MTD 31AE663H401, 31AE633E401 manual Ref. No Part Description

Models E633 and E663

Ref. No.		Part No.		Part Description		Ref. No.	Part No.		Part Description
1.		712-0116		Lock Jam Nut 3/8-24	24.		784-5618		Bearing Housing
2.		756-0178		Flat Idler	25.		710-0703		Carriage Screw 1/4-20 x .75
3.		784-5632A		Auger Idler Arm	26.		710-0604		Hex Washer Screw 5/16-18
4.		710-0459A		Hex Cap Screw 3/8-24 x 1.50	27.		736-0169		Lock Washer 3/8
5.		738-0281		Shoulder Screw	28.		712-0798		Hex Nut 3/8-16
6.		736-0174		Wave Washer	29.		741-0245		Hex Flange Bearing
7.		732-0611		Extension Spring	30.		784-5580		Skid Shoe
8.		712-3068		Hex Nut 5/16-18	31.		736-0242		Bell Washer
9.		712-3010		Hex Nut 5/16-18	32.		712-3010		Hex Nut 5/16-18
10.		736-0119		Lock Washer 5/16	33.		784-5575		29.66” Shave Plate (E663)
11.		05931		Housing	34.		784-5581A		23.66” Shave Plate (E633)
12.		741-0309		Ball Bearing			710-0260		Carriage Bolt 5/16-18 x .62
13.		710-0451		Carriage Bolt 5/16-18 x .75	35.		684-0065		Impeller Assembly
14.		705-5226		Chute Reinforcement	36.		715-0114		Pin
15.		684-0055B		30” Housing Ass’y (E663)	37.		618-0160		30” Gear Assembly (E663)
		684-0039C		24” Housing Ass’y (E633)	38.		618-0120		24” Gear Assembly (E633)
16.		712-3010		Hex Nut 5/16-18			605-5248A		30” Spiral RH (E663)
17.		712-0429		Lock Nut 5/16-18			605-5188A		24” Spiral RH (E633)
					39.		736-0188		Flat Washer
18.		736-0242		Bell Washer
					40.		741-0493A		Flange Bushing
19.		741-0475		Bushing
					41.		605-5249A		30” Spiral LH (E663)
20.		784-5647		Chute Crank Bracket
							605-5189A		24” Spiral LH (E633)
21.		731-1379A		Chute Adapter
					42.		710-0890A		Shear Bolt 5/16-18 x 1.5
22.		712-0324		Hex Lock Nut 1/4-20
23.		736-0463		Flat Washer
			4
								11	19
							9		8
						16
			2				13		15
			18						14
					17		5		6	10
					7					3
					12
							17	18
									1
Ref. No.		Part No.		Part Description
									3
1.	618-0123		RH Reducer Housing (Incl. # 17, 18)

2.618-0124 LH Reducer Housing (Incl. # 17, 18)

3.710-0642 Self Tapping Screw, 1/4-20 x .75

4.	711-1024	Spiral Axle, 30” (E663)	Ref. No.	Part No.	Part Description
	711-0908	Spiral Axle, 24” (E633)
5.			13.	736-0369	Flat Washer, .508 x 1.0 x .020
	714-0161	Hi-Pro Key, 3/16 x 5/8
			14.	736-0445	Flat Washer, .76 x 1.5 x .060
6.	715-0143	Spring Spiral Pin, .25 x 1.25
			15.	741-0662	Flange Bearing, .75 x 1.0 x .59
7.	717-0528	Worm Gear, 20-tooth
			16.	748-0663	Flange Bearing, .75 x 1.0 x .925
8.	717-0526	Worm Shaft
			17.	741-0661	Flange Bearing, .754 x 1.0 x .925
9.	718-0186	Thrust Collar
			18.	721-0179	Grease Seal
10.	721-0325	Grease Plug
			19.	618-0160	Gear Assembly Complete, 30” (E663)
11.	721-0327	Grease Seal
				618-0120	Gear Assembly Complete, 24” (E633)
12.	736-0351	Flat Washer, .76 x 1.5 x .030	—	737-0168	Grease (2 Ounces)

23