Daewoo B20S-2 Disassembly/Assembly page 20

NOTICE
When the correct amount of shim has been installed
behind rollers (1) there will be contact (zero clearance)
between the rollers and the inner mast at most narrow
point of mast (refer to step 4)
IDCD037P
IDCD033P
6. Install 1 mm shim to each bearing of intermediate
lower and stationary upper basically. Lifting by
crane, insert intermediate mast into stationary
mast from the upper side.
NOTE: When installing shims (5) behind bearings
(4), make sure the amount of shim is divided equally
when positioned behind each bearing (4).
Vehicle Systems
2
1
3
B
IDCS123S
Mast Adjustment Lower Bearings
(A) Zero clearance. (B) Minimum clearance. (C) Zero clearance.
(3) Bearing. (4) Bearing. (5) Shims. (6) Shims.
IDCD039P
7. Make sure whether intermediate mast lower
bearings are properly shimmed in the stationary
mast by rolling up and down and moving
intermediate mast to right and left. If clearance
between both masts can be detected, pull out the
intermediate mast from the stationary mast with
crane and add shim 0.5 mm or 1 mm to both
intermediate lower bearings.
19
4 5
Disassembly & Assembly
6
A
C