Vehicle System
Disassembly & Assembly
22
(Typical Example)
11.
In case of standard and full free mast, stationary
upper bearings can be easily extruded by pulling
down the inner mast from the bottom of
stationary mast. If intermediate mast is stuck and
can-not move by rolling up and down, there
might be excessive shim. Pull out the
intermediate mast from the stationary mast and
remove shim 0.5mm to both stationary upper
bearings. Repeat same procedure of above until
properly shimmed. There is to be contact zero
clearance (C) between stationary upper bearings
and the widest point of intermediate mast to be
checked before.
C. Upper Pad Adjustment
Mast Adjustment Upper Bearings (D)Zero clearance. (E) 0.80
mm (.031 in) Clearance maximum. (F)Zero clearance. (7)
Pads. (8) Shims. (9) Shims. (10) Shims.
(Typical Example)
12.
Install shims (8) behind each pad (7) until there
is 0.80 mm (.031 in) maximum clearance (E)
between the pads and the inner and intermediate
masts with the masts at full extension. Lift by
crane, and pull out intermediate mast from
stationary mast and insert the shims behind each
pad. In case of standard and full free mast, the
pads of stationary upper can be easily extruded
by pulling down the inner mast from the bottom
of stationary mast.