Service Manual

Greensmaster 3250--D
Hydraulic System (Rev. I)
Page 4 -- 66
Wheel Motors
Figure 38
1. Lug nut
2. Tire
3. Rim
4. Valve stem
5. Brake drum
6. Wheel hub
7. Drive stud
8. Backing plate
9. Brake cam
10. Retaining clip
11. Return spring
12. Brake shoe
13. Bearing plate
14. Brake bracket
15. Hydraulic hose
16. Hydraulic hose
17. 45
o
Hydraulic fitting
18. O--ring
19. O--ring
20. Hydraulic motor
21. Flat washer
22. Brake rod
23. Brake lever
24. Lock nut
25. Jam nut
26. Cap screw
27. Cap screw
28. Lock nut
29. Lock nut
30. Cap screw
31. Swivel clevis
32. Woodruff key
FRONT
RIGHT
21
31
27
29
24
30
26
1
2
7
8
14
18
20
22
23
10
9
25
12
RH 15
LH 16
15 RH
16 LH
28
13
12
11
3
4
5
6
19
17
32
250 to 400 ft--lb
(339 to 542 N--m)
70 to 90 ft--lb
(95 to122 N--m)
Front Wheel Motor Removal (Fig. 38)
1. Before removing any parts from the hydraulic sys-
tem, park the machine on a level s urface, engage the
parking brake, lower the cutting units, and stop the en-
gine.
CAUTION
Before continuing further, read and become fa-
miliar with General Precautions for Removing
and Installing Hydraulic System Components.
2. Chock front and rear of wheels not being lifted to
prevent the machine from moving. Lift front wheel off the
ground using a jack, and place blocks beneath the
frame.
3. Remove lug nuts (1), tire (2) and rim (3), and bearing
plate (13) from drive studs (7). Loosen but do not re-
move lock nut (24) from hydraulic wheel motor (20)
shaft.
IMPORTANT: DO NOT hit wheel hub (6) with a ham-
merduring removal orinstallation. Hammeringmay
cause damage to the hydraulic wheel motor (20).
Note: The brake drum assembly consists of the wheel
hub (6), brake drum (3), and drive stud (7).
4. Use wheel hub puller (see Special Tools) to free
wheel hub assembly from motor shaft. Do not disas-
semble hub assembly. Remove lock nut (24) and key
(32) from the hydraulic wheel motor (20) shaft.
5. Remove retaining clip (10) from the brake cam (9)
and brake lever (23). Separate lever from cam.