Cleaning and Inspection - TM-10-3930-627-340072

KEY to figure 8-1:

39.

Washer

1. Wheel bolt

40.

Nut

2. Parking brake lever

41.

Washer

3. Cotter pin

42.

Stud

4. Castellated nut

43.

Stud

5. Parking brake rod, rh

44.

6. Spring pin

45.

Brake lever and pin assembly

7. Brake bleeder screw

46.

Parking

8. Brake tube assembly (actuating)

47.

Final drive gear case

9. Brake tube assembly (bleed)

48.

Gasket

10. Elbow

49.

Bearing retainer

11. Adapter

50.

Screw

12. Gasket

51.

Washer

13. Bleeder tube adapter

52.

Axle shaft

14. Brake line fitting

53.

Axle shaft bearing retainer

15. Screw

54.

Bearing

16. Nut

55.

Nut

17. Washer

56.

Washer

18. Washer

57.

Washer

19. Bleeder screw fitting

58.

Tapered bushing

20. Screw

59.

Stud

21. Washer

60.

Roller bearing cup

22. Screw

61.

Axle housing

23. Washer

62.

Gasket

24. Internal gear final drivel

63.

Gasket

23. Cotter pin

64.

Bearing cone and rollers

26. Nut

65.

Case assembly

27. Washer

66.

Screw

28. Roller bearing inner cone and rollers

67.

Side bevel gear

29. Inner bearing cup

68.

Thrust washer (side gear)

30. Final drive shaft

69.

Thrust washer (spider bevel gear)

31. Screw

70.

Bevel gear (spider)

32. Gasket

71.

Differential spider

33. Bearing outer cone and rollers

72.

Ring gear

34. Outer bearing cup

73.

Rivet

35. Brake drum

74.

Pipe plug

36. Brake drum seal

75.

Housing oil drain plug

37. Brake assembly

76.

Final drive housing

38. Screw

c. Cleaning and Inspection. Clean all metallic parts

transmission to be installed with the axle be used in

making the adjustments. Before beginning assembly

with an approved cleaning solvent. Dry thoroughly with

have this transmission available with one set of gaskets

compressed air. Lubricate bearings with engine oil.

(2 and 3, fig. 7-5) to provide a difference between the

Inspect parts as follows:

bearing cone end and the gasket pack of 0.119 inch to

(1) Inspect all gears for cracked, worn, chipped,

0.125 inch, (fig. 8-2). Add or remove gaskets as

or broken teeth, worn bearing seats, and other damage.

required to obtain required bearing exposure. Proceed

(2) Inspect axle shafts for worn or broken teeth

as follows with assembly and adjustment.

and splines, twisted shafts, and worn or scored bearing

(1) Rivet ring gear (72, fig. 8-1) to case (65) half.

seats.

Press one bearing cone and roller (64) onto trunnion of

(3) Inspect bearings for worn or scored rollers and

each case half. Place a thrust washer (68) and side

races, cracked races and seating surfaces, distortion,

gear (67) in place in each case half.

signs of overheating, and other damage.

(2) Put four spider gears (70) and thrust washers

(4) Inspect axle housings and differential housing

(69) on spider (71) and install in one case half. Align

for cracks, distortion, worn or damaged threads, and

match marks on case halves and assemble case halves

other damage.

with screws (66). Install cups (60) in axle housings (61)

(5) Replace worn and unserviceable parts.

and put a set of gaskets (62 and 63) on studs (59) of

d. Reassembly, Adjustment, and Installation. Three

differential housing (76). Use same thickness of gaskets

basic adjustments must be made when the differential

at each side as was removed at disassembly for initial

has been assembled after replacement of parts. These

assembly

are differential' bearing preload adjustment, ring gear

(3) Position assembled differential in housing

and pinion backlash adjustment, and tooth contact

(76). Differential will be loose. Pass a piece of rod or

adjustment. These adjustments require that the same

8-3