Servicing The Piston (Traction) Pump - Toro Groundsmaster 4300-D Service Manual

Servicing the Piston (Traction) Pump

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1. Seal
2. O-ring (2 each)
3. Bearing (2 each)
4. Traction pump housing
5. Plug (2 each)
6. O-ring (2 each)
7. Auxiliary shaft
8. Retaining ring (2 each)
9. Ball bearing
10. Retaining ring (2 each)
11. Backup washer
12. Seal
Hydraulic System: Service and Repairs
13. Trunnion cover
14. Screw (4 each)
15. Cylinder block kit
16. Valve plate
17. Slotted pin
18. Neutral return pivot
19. Neutral return arm
20. Pin (2 each)
21. Bearing
22. Retaining ring
23. Seal kit (2 each)
24. Relief valve (2 each)
Note: For the piston (traction) pump repair information; refer to the
Sauer-Danfoss LPV Closed Circuit Axial Piston Pumps Repair Manual and
Service Instructions at the end of this chapter.
If a piston (traction) pump failure occurs, refer to
Component Failure (page 4–7)
importance of removing contamination from the traction circuit.
Figure 88
25. Plug
26. Spring
27. Loop flushing spool
28. O-ring
29. Bypass valve
30. Seal kit
31. Coupling
32. Screw (4 each)
33. Charge relief poppet
34. Spring
35. Shim kit
36. Charge relief plug
IMPORTANT
for information regarding the
Page 4–106
37. O-ring
38. End cap
39. Needle bearing
40. End cap gasket
41. Spring
42. Thrust plate
43. Swash plate
44. Seal nut
45. Trunnion cover
46. Screw (4 each)
Traction Circuit
Groundsmaster ® 4300-D
16226SL Rev C