Hydrostatic Transmission Service - Toro Groundsmaster 3280-D Service Manual

Hydrostatic Transmission Service

9
4
5
5
7
8
6
49
15
54
53
52
1. Retaining ring
2. Trunnion shaft
3. Flat washer
4. Roller bearing
5. Needle bearing
6. Transmission housing
7. Lip seal
8. Trunnion cam
9. Lip seal
10. Ball bearing
11. Woodruff key
12. Pump shaft
13. Swash plate
14. Spring pin
15. Thrust plate
16. Cylinder block (pump)
17. Pump valve plate
18. Needle bearing
19. Slipper retainer (pump)
NOTE: For transmission repair information, see the
Sauer--Danfoss (Sundstrand) 15 Series Repair Manual
and Service Manual at the end of this chapter.
Hydraulic System
7
1
2
3
48
10
11
14
12
48
47
45
20. Piston (pump) (9 used per block)
21. O-ring
22. Check valve
23. Plug
24. O-ring
25. Shim pack
26. Relief valve spring
27. Relief valve cone
28. Plug
29. Cap screw (2 used)
30. Cap screw (2 used)
31. Backup ring
32. O-ring
33. O-ring
34. Pin
35. Bearing
36. Woodruff key
37. Gerotor (charge) pump
38. Shaft seal
13
14
15
20
19
16
36
17
46
18
46
40
18
24
39
23
56
57
Figure 29
Page 5 - - 38
23
22
24
32
31
33
40
40
29
21
30
44
37
41 38
42
28
43
39. Center section
40. Pipe plug (4 used)
41. O- -ring
42. Threaded plug
43. Cap screw (4 used)
44. Expansion plug
45. Motor valve plate
46. Dowel pin
47. Motor shaft
48. Dowel pin (2 used)
49. Housing gasket
50. Charge pump housing
51. Retaining ring
52. Cylinder block (motor)
53. Slipper retainer (motor)
54. Piston (motor) (9 used per block)
55. Flange head screw (2 used)
56. O- -ring (2 used)
57. Threaded plug (2 used)
Groundsmaster 3280--D/3320
25
26
27
34
50
35
51
55