Piston Pump Service
19
27
21
22
43
28
42
41
18
22
40
17
38
16
15
39
23
13
38
4
26
12
11
5
20
46
37
6
48
10
19
17 18
29
14
8
15
47
45
44
9
8
3
48
6
2
7
1
24
25
30
26
4
31
32
31
33
30
35
34
Figure 54
1.
Key
Drive shaft
Bearing
Cap screw (3 used per plate)
Cover plate
O--ring
Shim
Bearing cone
Key
Cam plate
Rotating kit
Gasket
Cam plate
Bearing
17. O--ring
18. Plug
19. Spring
20. Seat
21. Bypass valve
22. Cap screw
23. Cap screw
24. Shaft seal
25. Cover plate
26. Washer (3 used per plate)
27. Relief valve
28. Coupler
29. Housing
33. Washer
34. Shaft seal
35. Retaining ring
36. Retaining ring
37. Cam plate insert
38. Retaining ring
39. Washer
40. Charge relief spring
41. Charge relief poppet
42. Charge relief housing
43. O--ring
44. Cartridge
45. O--ring
46. Bleed--off spring
47. Bleed--off valve poppet
48. Bearing cup
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
30. Retaining ring
31. Thrust washer
32. Thrust bearing
Dowel pin
Back plate
NOTE: For repair of the piston pump, see the Eaton
Medium Duty Piston Pump Repair Information Model
70160
VariableDisplacement Piston Pump atthe end of
this chapter.
IMPORTANT: If a piston pump failure occurred, re-
fer to Traction Circuit (Closed Loop) Component
Failure in the General Information section for infor-
mation regarding the importance of removing con-
tamination from the traction circuit.
Hydraulic System
Page 4 -- 84 Rev. A
Groundsmaster 3505--D
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| Language | English |
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