Troy-Bilt 521 Operator's Manual page 15

Models 521 and 721
5
18
24
16
19
17
9
7
6
23
4
REF. PART
NO. NO.
1 629-0071 Extension Cord
2 710-0157 Hex Screw, 5/16-24 x .75
3 710-0409 Hex Screw, 5/16-24 x 1.75
4 710-0654A Self Tapping Screw, 3/8-16 x 1.00
5 710-0751 Hex Screw, 1/4-20 x .62
6 710-1003 Screw, #10-16 x .625
7 712-0324 Hex Nut, 1/4-20 Nylon
8 719-0581 Spacer, Engine 4 Cycle
9 726-0205 Clamp, Hose
10 726-0470 Cable Tie
12 731-2825 Knob, Choke
13 736-0119 Washer, Lock 5/16
14 736-0242 Bell Washer, .340 x .872 x .060
15 736-0337 Flat Washer, 5/8 ID x 1.0 OD
16 747-04169 Support, Wire Gas Tank
17 751-0535 Hose, Fuel Line
18 751-0603 Cap, Fuel
19 751-10023 Tank, Fuel
20 751-0101A V-Belt 1/2 x 35.0 LG
21 756-04060 Pulley Half, .625 ID x 2.25 OD
22 756-0475 Pulley, 1/2 V 1/2-20 LH x 6.0
23 790-00047 Bracket, Engine 4 Cycle
24 790-00059 Bracket Support Gas Tank 4 Cycle Snow
12
8
22
DESCRIPTION
15
1
10
13
3
21
15
21
14
2
20