Service Manual

Topdresser 1800 & 2500Hydraulic System Page 3 – 40
Wheel Motor Service (Topdresser 2500)
1. Screw (4 used)
2. End cover
3. Body seal
4. Piston spring
5. Backup seal
6. O–ring seal
7. Piston
8. Commutator seal
9. Commutator assembly
10. Manifold
11. Rotor assembly
12. Drive link
13. Wear plate
14. Housing
15. Thrust bearing
16. Thrust washer
17. Bearing
18. Bearing spacer
19. Shaft
20. Shaft seal
21. Backup seal
22. Metal backup shim
23. Seal carrier
24. High pressure seal
25. Metal backup shim
26. Wire ring
27. Dust seal
Figure 35
5
4
2
1
3
7
8
6
19
18
17
16
15
13
12
14
20
11
3
9
3
21
22
25
26
23
24
27
10
15
16
50 ft–lb
(67 N–m)
Disassembly (Fig. 35)
1. Thoroughly clean exterior of wheel motor. To aid in
assembly, use a marker to draw a V shaped set of lines
from end cover to housing (Fig. 36).
IMPORTANT: Prevent damage when clamping the
motor in a vise; clamp on the housing only.
2. With shaft facing down, secure motor in a vise by
clamping on the housing.
3. Loosen and remove four (4) screws (item 1).