Assembly of Traction Pump (Fig. 22)
Figure 22
1. End cap 16. Screw 30. Seal carrier
2. Plug 17. Trunnion cover 31. O-ring
3. 18. O-ring 32. Retaining ring
4. O-ring 19. Trunnion spacer 33. Pump housing
5. Conical spring 20. Shim 34. Lip seal
6. Retaining ring 21. Roller bearing 35. Trunnion cover
7. Relief valve 22. O-ring 36. Swash plate
8. Charge relief poppet 23. O-ring 37. Thrust plate
9. Spring 24. Washer 38. Cylinder block
10. Shim 25. Capscrew 39. Valve plate
11. O-ring 26. Pump shaft 40. Pin
12. Charge relief plug 27. Ball bearing 41. Coupling
13. Needle bearing 28. Retaining ring 42. Plug
14. End cap gasket 29. Lip seal 43. Pin
15. Pin 30. Seal carrier
1. Clean and lightly oil parts before assembly. Tighten
all threaded parts to recommended torque value.
IMPORTANT: Most parts have critical, high toler-
ance surfaces. Use caution to prevent damage to
these surfaces during assembly. Protect exposed
surfaces, openings and ports from damage and
foreign material.
2. Install swashplate (Item 36) into housing. Make sure
swas
hplate control shaft is located on correct side of
housing (note marks made during disassembly). Install
swashplate roller bearings (Item 21) into housing and
on
to swashplate trunnions. Install shims (Item 20) and
trunnion spacers (Item 19).
3. Install trunnion cover (Item 17) with o-ring (Item 18)
on
to housing and over swashplate trunnion.
4. Use an arbor press to press a new seal (Item 34) into
trunnion seal cover (Item 35). Outer face of seal should
be pressed flush with outer surface of seal cover. Be
careful not to damage the seal.
Repairs Pa
ge 4 - 34 Groundsmaster
®
455-D
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