Service Manual

Groundsmaster 360Hydraulic System Page 4 − 128
Steering Cylinder Service
1. Collar (2)
2. Front head
3. Barrel
4. Front rod
5. Piston assembly
6. Rear rod
7. Rear head
8. Dust seal (2)
9. Head seal (2)
10. Back−up ring (2)
11. O−ring (2)
12. O−ring
13. Piston seal
14. Wear ring
15. Roll pin
Figure 145
2
3
6
8
9
10
11
13
1
5
7
12
14
15
4
9
10
11
8
1
NOTE: Front and rear steering cylinders used on the
Groundsmaster 360 are the same and use the same
service procedures.
NOTE: The following procedures assume the rod end
and ball joint have been removed from the steering cyl-
inder (see Steering Cylinder Removal in this section).
Disassembly (Fig. 145)
1. Remove oil from steering cylinder into a drain pan by
slowly pumping the cylinder rod. Plug both ports and
clean the outside of the cylinder.
IMPORTANT: Prevent damage when clamping the
steering cylinder into a vise; clamp on the barrel cle-
vis ONLY. Do not close vise on barrel or rod.
2. Mount steering cylinder securely in a vise by clamp-
ing on the barrel clevis. Use of a vise with soft jaws is rec-
ommended.
3. Using a spanner wrench, loosen and remove exter-
nal collars from both ends of barrel.
4. Use a twisting and pulling motion to carefully extract
the rear head from the barrel and rear rod.
5. Grasp end of front rod and use a twisting and pulling
motion to carefully extract the front rod, front head, pis-
ton and rear rod assembly from the barrel.
6. Remove cylinder barrel from vise.