Piston Pump Service - Toro Greensmaster 3150 Service Manual

Piston Pump Service

41
42
43
44
45
4
27
28
5
7
6
2
1
35
1. Key
2. Drive shaft
3. Bearing
4. Cap screw
5. Cover plate
6. O–ring
7. Shim kit (for crush ring replacement)
8. Bearing cone
9. Key
10. Camplate
11. Rotating kit
12. Gasket
13. Valve plate
14. Bearing
15. Dowel pin
16. Back plate
17. O–ring
Note: For repair of the piston pump, see Eaton, Me-
dium Duty Piston Pump, Repair Information, Model
70160 Variable Displacement Piston Pump at the end of
this chapter.
Greensmaster 3150
19
17
18
40
16
15
14
15
24
8
29
3
6
30
31
32
31
30
33
34
Figure 21
18. Check valve
19. Dump valve
20. O–ring
21. Cap screw
22. Cap screw
23. Coupler
24. Roll pin
25. Cover plate
26. Camplate insert
27. Shaft seal
28. Washer
29. Housing
30. Retaining ring
31. Bearing race
32. Thrust bearing
33. Washer
Page 4 – 49
36
37
21
20
23
22
46
47
48
9
49
26
10
8
7
25
28
34. Shaft seal
35. Retaining ring
36. Retaining ring
37. O–ring
38. O–ring
39. Seal kit
40. O–ring
41. Charge relief housing
42. Charge relief poppet (R4)
43. Charge relief spring
44. Washer
45. Retaining ring
46. Bleed–off valve poppet
47. Bleed–off spring
48. O–ring
49. Cartridge
IMPORTANT: The shims (7) are used to replace a
crush ring in the cover plate (25). If the camplate
(10), cover plate (25), or housing (29) is replaced
during servicing, the old crush ring must be re-
placed using the procedure (Piston Pump Crush
Ring Replacement) on the following page in con-
junction with the pump service manual.
Rev. A
REAR
OF TRACTION UNIT
13
12
11
Parts not listed in
partlist are not
serviced separately.
4
14
16
39
24
20
19
36
37
4
Hydraulic System
6
12
17
20
27
30
34
35
36
37