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21
Model 550
Ref.
No.
Part No. Part Description
1. 781-0677 Chain Case LH
2. 781-0676 Chain Case RH
3. 754-0457 V-Belt
4. 748-0313 Spacer
5. 741-0413 Hex Flange Bearing
6. 736-0336 Flat Washer
7. 713-0422 Chain
8. 710-0896 Hex Washer Screw 1/4-14
9. 710-0603 Hex Washer Screw 5/16
10. 618-0256 Transmission Assembly
11. 611-0063 Axle Assembly
12. 10622B Plastic Spring Ratchet
13. 634-0136 Wheel Complete 10 x 4 x 4
14. 712-0456 Hex Nut 1/4-20
15. 712-3027 Hex Flanged Lock Nut 1/4-20
16. 714-0104 Cotter Pin
17. 736-0366 Flat Washer 5/8 ID x 1.0 OD
18. 748-0188B Pawl LH .345 ID
748-0381 Pawl RH .345 ID
19. 748-0405 Wheel Ratchet 1.62 OD x .5 serr
21. 618-0255 Transmission Assembly Complete
22. 16500A Hex Bearing Cup
23. 711-1118 Output Shaft 6T Sprocket
24. 717-1432 Helical 34T Gear
25. 721-0213 Oil Seal
26. 736-0187 Flat Washer .64 ID x 1.24 OD
27. 736-0336 Flat Washer 5/8 x 1.0
28. 741-0413 Hex Flange Bearing .631 ID
IMPORTANT: For a proper
working machine, use Factory
Approved Parts.
V-BELTS are especially designed
to engage and disengage safely.
A substitute (non OEM) V-Belt can
be dangerous by not disengaging
completely.
29. 741-0414 Flange Bearing .629 ID
30. 741-0415 Flange Bearing .566 ID
31. 719-0325 Lower Housing
32. 748-0373 Flange Bearing .503 ID
33. 719-0324A Upper Housing
34. 748-0208A Flange Bearing .378 ID
35. 710-0589 Hex Washer Screw #10-16 x .75
36. 717-1433 Pinion Shaft 10T
37. 721-0329 Oil Seal
38. 736-0314 Thrust Washer .382 ID x .684 OD
39. 736-0520 Flat Washer .504 ID x .70 OD
40. 741-0479 Thrust Bearing .375 ID x .812 OD
41. 656-0008 Pulley Ass’y Idler w/ Bearing
42. 741-0556 Needle Bearing .375 ID x .375 OD
43. 710-0589 Hex Screw #10-16 x .75
44. 710-1062 Hex Cap Screw 1/4-20 x 1.25
45. 712-0138 Hex Nut 1/4-28
46. 712-3045 Hex Jam Nut 5/16-24 LH Thd
47. 732-0357A Extension Spring 1.12 Lg
48. 736-0270 Bell Washer .265 ID x .75 OD
49. 736-0329 Lock Washer 1/4
50. 736-0425 Bell Washer .325 ID x .930 OD
51. 738-0440 Shoulder Spacer .375 ID x .165 OD
52. 738-0826 Shoulder Bolt 1/4-28 x .375
53. 756-0656 Flat Pulley 5.06 Dia
54. 782-7569 Belt Keeper
55. 682-0054 Idler Bracket
Ref.
No.
Part No. Part Description