Disassemble
CAUTION
Carefully disassemble the main lift cylinders so
the piston rods and sliding surfaces are not dam-
aged.
NOTE:
To disassemble the left main lift cylinder on
lift trucks equipped with a two-stage FFL mast, see
the section Two-Stage FFL Left Side Main Lift Cyl-
inder.
NOTE:
To prevent damage to sealing surfaces, use
brass tools when removing seals and O-rings.
1.
Loosen gland with spanner wrench.
2.
Remove gland from shell.
3.
Remove rod and piston assembly from shell.
Drain hydraulic oil into container.
4.
Remove and discard O-rings, seals, backup
rings, wiper rings, and wear rings.
See Figure 9 for lift trucks equipped with a two-
stage LFL mast
See Figure 10 for lift trucks equipped with a
three-stage FFL mast
WARNING
Be careful when removing or install snap rings.
These snap rings can come loose during removal
or installation with enough force to cause an in-
jury. Always use the correct snap ring pliers and
wear eye and face protection during removal or
installation.
NOTE:
Step 2 does not apply to lift trucks equip-
ped with a two-stage FFL mast or to lift trucks
shown below:
• H4.0FT5/FT6;
H4.5FTS5,
H4.5FT6;
H5.0-5.5FT, (H80-120FT) (N005, P005, R005,
S005)
• S4.0-5.5FT,
S5.5FTS,
(S80-120FT;
S80-100FTBCS;
S120FTS;
S120FTPRS)
(G004, H004)
• E3.50-5.50XL,
E4.50XLS
(E70-120Z,
E100ZS) (E098)
1. SHELL
2. ROD
3. GLAND
4. ROD SEAL
5. CHECK VALVE
6. WASHER
7. O-RING
8. SNAP RING
9. WIPER RING
10. SEAL
11. BACKUP RING
12. WEAR RING
Figure 9. Two-Stage LFL Main Lift Cylinder
5.
Remove snap ring, washer, and check valve
from base of piston.
See Figure 9 for lift trucks equipped with a two-
stage LFL mast
See Figure 10 for lift trucks equipped with a
three-stage FFL mast
6.
Repeat disassembly procedure for the opposite
cylinder.
Lift Cylinder Repair
2100 SRM 1139
18
