Model 553 – MTD 31AH553G401 User Manual
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21
Ref. No.
Part No.
Description
1.
05931
Bearing Housing
2.
684-0065
Impeller Assy. 12” dia.
3.
705-5226
Chute Reinforcement
4.
710-0451
Carriage Bolt 5/16-18 x .75” Gr.2
5.
710-0459A
Hex Screw 3/8-24 x 1.5” Gr.5
6.
710-0604
Hex Washer Head Self-Tapping
Screw 5/16-18 x .62”
7.
710-0703
Carriage Screw 1/4-20 x .75”
8.
710-0890A
Shear Bolt 5/16-18 x 1.5”
9.
712-0116
Jam Nut 3/8-24
10.
712-0324
Hex Lock Nut 1/4-20
11.
712-0429
Hex Lock Nut 5/16-18
12.
712-0798
Hex Nut 3/8-16 Gr.2
13.
712-3010
Hex Nut 5/16-18 Gr.5
14.
712-3068
Hex Patch Nut 5/16-18
15.
715-0114
Spiral Pin
16.
731-1379A
Chute Adapter
17.
732-0611
Extension Spring
18.
736-0119
Lock Washer
19.
736-0169
Lock Washer
20.
736-0174
Wave Washer
21.
736-0188
Flat Washer
22.
736-0242
Belleville Washer
23.
736-0463
Flat Washer
24.
737-3007
Grease
25.
738-0281
Shoulder Screw
26.
741-0245
Hex Flange Bearing
27.
741-0309
Flange Ball Bearing
28.
741-0493A
Flange Bushing
29.
756-0178
Flat Idler
30.
784-5632A
Auger Idler Arm
31.
605-5196A
Spiral Assembly: RH 28”
32.
605-5197A
Spiral Assembly: LH 28”
33.
618-0122
Gear Assembly: Auger 28”
(Includes Ref. # 41-56)
34.
784-5582A
Shave Plate: Auger 28”
35.
710-0451
Carr. Bolt: 5/16-18 x 0.75
36.
712-3010
Hex Nut: 5/16-18 Gr.5
37.
736-0242
Belleville Washer
38.
784-5580
Slide Shoe
39.
684-0041C
Auger Housing Assy. 28”
40.
784-5618
Bearing Housing
41.
618-0123
RH Housing
42.
618-0124
LH Housing
43.
710-0642
TT Screw, 1/4-20 x .75
44.
711-0910
Spiral Axle, 28”
45.
714-0161
Hi-Pro Key, 3/16 x 5/8
46.
715-0143
Spring Spiral Pin, .25 x 1.25
47.
717-0528
Worm Gear, 20-tooth
48.
717-0526
Worm Shaft
49.
718-0186
Thrust Collar
50.
721-0325
Grease Plug
51.
721-0327
Grease Seal
52.
736-0351
Flat Washer, .76 x 1.5 x .030
53.
736-0369
Flat Washer, .508 x 1.0 x .020
54.
736-0445
Flat Washer, .76 x 1.5 x .060
55.
741-0662
Flange Bearing, .75 x 1.0 x .59
56.
741-0663
Flange Bearing, .503 ID
x .75 OD
57.
737-3000
Grease Fitting
—
737-0168
Grease (Two Ounces)
Ref. No.
Part No.
Description
Model 553
1.
734-1709
Wheel Assembly: 16” x 4.8”
2.
738-0994A
Axle: .75” dia. x 12.201” Lg.
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