Filter
Top Products
ProCore 648Hydraulic System Page 4 – 52
Lift Cylinder Service
1. Retaining ring
2. Cylinder tube
3. Rod
4. O–ring
5. Backup ring
6. Retaining ring
7. Seal
8. Head
9. Wiper
Figure 44
5
1
3
7
8
9
6
4
2
Disassembly (Fig. 44)
1. Remove oil from the lift cylinder into a drain pan by
slowly pumping the cylinder rod. Plug port and clean
the outside of the lift cylinder.
IMPORTANT: Prevent damage when clamping the
lift cylinder into a vise; clamp on the pivot only. Do
not close vise enough to distort tube.
2. Mount lift cylinder in a vise so that the shaft end tilts
up slightly.
3. Rotate head (item 8) with a spanner wrench and re-
move retaining ring (item 6) as shown in Figure 45.
4. Grasp end of rod; extract rod and head by carefully
twisting and pulling on the rod.
IMPORTANT: Do not clamp vise jaws against rod
surface. Protect rod surface before mounting in
vise.
5. Mount rod securely in a vise by clamping vise on the
flats of the pivot. Remove retaining ring (item 1) and
carefully slide head from the shaft.
6. Remove and discard o–ring (item 4), backup ring
(item 5), seal (item 7) and wiper (item 9) from the head.
Figure 45
Spanner
wrench
Retaining
ring