Toyota 30 Series Manual page 83

LIFTING)
Note:
For double lift cylinders, inspection and adjustment are required t o prevent uneven lifting on
the left and right sides due to tolerances of parts, etc.
The inspection and adjustment must be made whenever any of the following parts is replaced:
Lift cylinder ASSY, lift cylinder rod SUB-ASSY, lift cylinder SUB-ASSY, mast ASSY, outer mast
SUB-ASSY, and inner mast SUB-ASSY
1. Inspection method
Slowly raise the inner mast, and observe the stopping
states of the left and right cylinder rods at the moment
when the inner mast reaches the maximum height.
(1) Normal case
Both the left and right rods stop almost simultaneously
with almost no shaking of the inner mast.
(2) Abnormal case
The rods stop with slight difference and the top of the
inner mast shakes at the time of stopping. To correct
this, add shims to the cylinder that stops first.
2. Adjustment method
(1) Raise the inner mast, set the SST to the outer mast
tie beam, and lower the inner mast until it reaches the
S ST.
SST 0961 0-22000-71
(2) Remove the set bolt of the cylinder rod end on the
side requiring shim adjustment.
(3) Slowly lower the lift cylinder rod and disconnect the
cylinder rod end.
(4) Place shims on the cylinder rod end. Slowly raise the
cylinder rod end into the inner mast.
Fix the set bolt of the cylinder rod end.
(5)
Raise the inner mast for reinspection.
(6)
(7) Repeat the inspection and adjustment until the num-
ber of shims is determined.
Shim thickness:
0.5 and 1.0 mm (0.020 and 0.039 in)