Lift Cylinder Service - Toro Workman 3000 Series Service Manual

Lift Cylinder Service

60 to 75 ft–lb
(81 to 102 N–m)
1
1. Lock nut
2. Wear ring
3. Seal
4. O–ring
5. Piston
Disassembly (Fig. 38)
1. Pump oil out of cylinder into a drain pan by slowly
moving piston back and forth.
2. Before disassembling cylinder, plug ports, wash exte-
rior with cleaning solvent and dry thoroughly.
IMPORTANT: Use caution when using a vise to avoid
scratching or distorting any parts.
3. Put cylinder in a vise so shaft end is facing up.
4. Use a spanner wrench to rotate head (Item 6) and re-
move retaining ring (Item 9). Grasp end of shaft and use
a twisting and pulling motion to carefully extract the pis-
ton, shaft and head assembly from the barrel.
5. Remove cylinder from vise.
6. Remove lock nut (Item 1) from shaft, then remove pis-
ton (Item 5), and head (Item 6). Remove and discard
seals, o–rings, wear ring and wiper from piston and
head.
Hydraulic System
3
4
5
2
13
14
6. Head
7. O–ring
8. Back–up seal
9. Retaining ring
10. Seal
Page 9 – 44
9
8
7
6
12
Figure 38
Spanner wrench
Retaining ring
11
10
11. Wiper
12. Barrel
13. Shaft
14. O–ring
Figure 39
Removing retaining ring
Workman 3000/4000 Series