Toro 3550-D Lawn Mower User Manual


 
Reelmaster 3550−DHydraulic System Page 4 − 80
Piston Pump/Hydrostat Service
1. Key
2. Drive shaft
3. Bearing
4. Cap screw (3 used per plate)
5. Cover plate
6. O–ring
7. Shim kit
8. Bearing cone
9. Key
10. Swashplate
11. Rotating kit
12. Gasket
13. Valve plate
14. Bearing
15. Dowel pin
16. Back plate
17. O–ring
18. Plug
19. Relief valve asm.
20. Check valve asm.
21. Bypass valve asm.
22. Cap screw
23. O–ring
24. Shaft seal
25. Cover plate
26. Washer (3 per plate)
27. Coupler
28. Housing
29. Retaining ring
30. Thrust washer
31. Thrust bearing
32. Washer
33. Shaft seal
34. Retaining ring
35. Cam plate insert
36. Retaining ring
37. Washer
38. Charge relief spring
39. Charge relief poppet
40. Charge relief housing
41. O–ring
42. Cartridge
43. O–ring
44. Bleed−off spring
45. Bleed−off valve poppet
46. Bearing cup
Figure 49
29
29
17
12
24
34
33
6
17
6
18
18
28
32
30
31
30
1
2
3
4
5
46
26
25
26
4
35
11
13
8
8
9
10
27
22
19
20
16
15
15
14
15
21
46
7
36
37
38
39
40
41
42
43
44
45
23