TCM FB30-7 - 8.2 Maintenance

8. LOAD HANDLING SYSTEM
- 142 -
Fig. 8.9
Fig. 8.10
8.2 MAINTENANCE
8.2.1 ADJUST LIFT CYLINDER ROD WITH SHIMS
After the lift cylinder, inner channel, and outer channel are replaced, the lift cylinder rod length needs
to be adjusted.
(1) Install a piston head on the rod of each left
cylinder without using shims.
(2) Extend the rod of each lift cylinder slowly and
examine the difference in the rod stopping time
when the rod reaches the stroke end between the
two lift cylinders.
(3) Add shims to the space between the rod and
piston head of the lift cylinder whose rod stops
rst.
Shim thickness: 0.2 and 0.5
[0.0079 and 0.0197 in.]
(4) Adjust the lift chain tension.
8.2.2 ADJUSTING HEIGHT OF CARRIAGE
(1) Stop the truck on a level surface and put the
mast vertically.
(2) Keep the fork bottom on the ground and adjust
the projected amount
A
of the carriage lower
end roller to the value as shown in Table 8.1,
using the chain anchor pin at the mast side.
Table 8.1
Model Mast Type
A
(mm [in.])
1 – 1.8 t VM-81E 36 – 41 [1.42 – 1.61]
2 – 2.5 t VM-81N 24 – 29 [0.94 – 1.14]
3.0 t VM-39F 44 – 49 [1.73 – 1.93]
3.5 t VM-77X 37 – 42 [1.46 – 1.65]
LIFT CYLINDER
FORK
TIRE
INNER CHANNEL
CARRIAGE END
ROLLER
PISTON HEAD
SHIM