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Piston (Traction) Pump Service
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Figure 55
1. | Jam nut | 16. | Relief valve (Reverse) | 31. | Flat washer |
2. | Retaining ring | 17. | Socket head screw | 32. | Housing gasket |
3. | Retaining ring | 18. | Valve plate | 33. | Cover plate gasket |
4. | Seal washer | 19. | Pump housing | 34. | Control assembly gasket |
5. | Socket head screw | 20. | Backplate assembly | 35. | Plug |
6. | Rotating kit assembly | 21. | Drive shaft | 36. | |
7. | Servo piston assembly | 22. | Nut | 37. | Seal |
8. | Piston follower | 23. | Lock washer | 38. | Roll pin |
9. | Cover plate | 24. | Washer | 39. | Bearing |
10. | Cover plate | 25. | Shaft seal | 40. | Dowel bushing |
11. | Camplate assembly | 26. | Relief valve (Forward) | 41. | Cradle |
12. | Thrust race | 27. | Control arm | 42. | Cap screw |
13. | Thrust bearing | 28. | Servo control assembly | 43. | Button head cap screw |
14. | Bypass valve | 29. | Washer | 44. | Bushing |
15. | Cap screw | 30. | Orifice plate (3 used) | 45. | Bearing |
NOTE: For service of the piston (traction) pump (includ- ing the servo control (item 28), see the Eaton Model 72400 Servo Controlled Piston Pump Repair Informa- tion at the end of this chapter.
Hydraulic System | Page 4 | Groundsmaster |