Tilt Cylinder Repair
2100 SRM 103
ASSEMBLE
Tilt Cylinders With O-Ring or Single-Lip
Seals
NOTE:
Always use new seals and O-rings. Make sure
all parts are clean. Lubricate all parts with clean
hydraulic oil.
NOTE:
During 1980 and 1981, a change was made in
the tilt cylinders used in most lift trucks. The O-ring
seal between the retainer and the cylinder shell was
moved from above the threads to the area below the
threads. A backup ring was added to increase the
strength of the O-ring. The assembly of the tilt cylin-
ders is the same, but caution must be used so that the
O-ring seal is not damaged by the threads.
1.
Install the O-ring inside the piston bore. See Fig-
ure 1. Install the piston on the piston rod. Make
sure the O-ring is not damaged. Tighten the nut
on the piston rod to the specifications given in
Torque Specifications.
2.
Install the O-ring, seal ring, and guide ring on
the piston. The seal ring must be heated before
installation. After heating, it must be pushed
into its groove using a ring compressor. Let the
seal ring cool and return to its normal shape.
3.
If used, install the O-ring and the backup ring in
the groove of the outer retainer. Install the rod
seal (O-ring toward the piston) and wiper seal in
the inner retainer.
4.
Install the retainer on the piston rod. Install
the piston and rod assembly and the retainer in
the cylinder. If used, install the O-ring on the
retainer. Tighten the retainer to specifications
given in Torque Specifications.
NOTE: After assembly is complete, install the rod
end on the piston rod. Tighten the capscrew on the
rod end as specified in Mast section for your specific
lift truck.
1.
PISTON ROD
2.
PISTON RING
3.
O-RING
4.
O-RING
5.
PISTON
6.
GUIDE RING
7.
NUT
8.
CYLINDER SHELL
9.
O-RING
10. BACKUP RING
11. RETAINER
12. SEAL RING
13. WIPER RING
14. SPACER (SOME MODELS)
Figure 1. Tilt Cylinders With O-Ring or Single-Lip Seals
2
