Troy-Bilt 521 Operator's Manual page 13
Troy-bilt single stage snow thrower operator's manual
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Also See for 521:
- Operator's manual (16 pages) ,
- Operator's manual (32 pages) ,
- Operator's manual (17 pages)
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Models 521 & 721
Ref. No.
Part No.
1.
684-0174
2.
684-0177
3.
684-0178
4.
731-04075
731-2569
5.
710-0895
6.
710-1003
7.
710-1882
8.
710-3083
9.
712-0252
10.
712-0429
11.
712-3010
12.
714-0104
13.
714-0507
14.
720-0201A
15.
725-0201
16.
725-2018
17.
726-0100
18.
736-0119
19.
736-0185
20.
736-0225
21.
736-0400
22.
736-0451
23.
7519636
24.
684-0190
25.
749-0711A
26.
749-0796B
27.
710-0167
710-0191
28.
29.
710-0323
30.
710-0352
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 powder black, the part number to order
would be 700-xxxx-0637.
Powder Black: 0637
MTD Red: 0638
Part Description
Upper Chute Crank Assemby
Lower Chute Crank Assembly
Bracket Assembly: Mitten Grip
Shroud (Model 521)
Shroud (Model 721)
TT Screw 1/4-15 x 0.75"
B Screw #10-16 x 0.625"
Hex Fl. Screw 5/16-18 x 1.5"
Hex Bolt 5/16-18 x 1.375"
Jam Nut
Lock Nut
Hex Nut 5/16-18
Cotter Pin
Cotter Pin
Knob: Chute Crank
Ignition Key
Switch: Electric Start Key
Push Cap
Lock Washer
Flat Washer
Internal Lock Washer
Flat Washer
Saddle Washer
Mitten Grip Handle
Spark Plug Access
Upper Handle: Gull Wing
Lower Handle
Carriage Screw 1/4-20 x 0.50"
Hex Bolt
Machine Screw
B Screw1/4-14 x 0.375"
Ref. No.
Part No.
31.
710-0451
32.
710-0642
33.
710-0773
34.
710-0896
35.
710-1005
36.
711-0848A
37.
712-0116
38.
712-3010
39.
712-3027
40.
731-1033
41.
732-0357A
42.
736-0108
43.
736-0119
44.
736-0176
45.
736-0242
46.
736-0326
47.
736-0329
48.
741-0475
49.
741-0600
50.
746-0910A
51.
748-0234
52.
756-0313
53.
784-5174
54.
784-5175B
55.
784-5176
56.
784-5485
57.
784-5720
58.
684-0196
59.
734-1797
60.
710-1090
13
Part Description
Carriage Bolt
TT Screw 1/4-20 x 0.75"
TT Screw 3/8-16 x 0.5"
AB Screw 1/4-14 x 0.625"
B Screw 1/4-14 x 0.5"
Axle Tube
Jam Lock Nut
Hex Nut 5/16-18
Lock Nut
Shave Plate
Extension Spring
Flat Washer
Lock Washer
Flat Washer
Beleville Washer
Flat Washer
Lock Washer
Plastic Bushing
Ball Bearing
Clutch Cable
Shoulder Spacer
Flat Idler
Bearing Cup
Bracket: Brake Idler
Belt Cover
Auger Assembly
Chute Crank Bracket
Auger Housing Assembly
Wheel Assembly
Hex Fl. Screw 5/16-18 x 1.25"
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