Piston (Traction) Pump Service
18
19
5
23
4
15
20
12
9
2
14
5
13 1
8
7
6
24
3
25
26
8
17
9
10
24
28
16
11
13
12
32
33
27
26
34
31
36
30
29
22
53
21
35
54
40
43
44
52
41
51
42
37
45
38
46
39
50
47
49
48
Figure 71
1.
Traction pump housing
Auxiliary shaft
Retaining ring
Ball bearing
Retaining ring
Seal
Backup washer
Bearing
O--ring
Trunnion cover
Screw (4 used)
Plug
O--ring
Seal
19. Control arm
20. Screw
37. Cylinder block kit
38. Valve plate
39. Slotted pin
40. End cap gasket
41. Seal kit
42. Relief valve (reverse)
43. Needle bearing
44. Loop flushing spool
45. Spring
46. Plug
47. O--ring
48. Bypass valve
49. Seal kit
2.
3.
21. Charge relief poppet
22. Spring
4.
5.
23. Bracket
6.
24. Nut
7.
25. Seal nut
8.
26. Pin
9.
27. Swashplate
28. Thrust plate
29. Shim kit
10.
11.
12.
13.
14.
15.
16.
17.
18.
30. O--ring
31. Charge relief plug
32. Retaining ring
33. Bearing
50. End cap
51. Coupling
52. Screw (4 used)
53. Relief valve (forward)
54. Seal kit
Trunnion cover
Neutral switch
Lock washer
Screw (4 used)
34. Neutral return arm
35. Neutral return pivot
36. Spring
NOTE: For piston (traction) pump repair information,
see the Sauer--Danfoss LPV Closed Circuit Axial Piston
Pumps Repair Manual and Service Instructions at the
end of this chapter.
IMPORTANT: If a piston (traction) pump failure oc-
curred, refer to Traction Circuit Component Failure
in the General Information section for information
regarding the importance of removing contamina-
tion from the traction circuit.
Hydraulic System
Page 4 -- 72
Groundsmaster 4300--D
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