Vehicle Systems
Disassembly & Assembly
D. Lower Bearing Adjustment of Inner
Mast
Mast Adjustment Lower Bearings
(A) Zero clearance. (B) Minimum clearance. (C) Zero clearance.
(3) Bearing. (4) Bearing. (5) Shims. (6) Shims.
13.
Select lower bearings (3) and (4) from the chart
to obtain minimum clearance (B) between
bearing and channel leg for full channel length.
Must use same bearing on left and right side.
*
Permissible tolerance
L
0.08mm (.003in)
14.
Find narrowest point by ruler on the intermediate
mast in the area where the inner lower bearings
make contact full length of intermediate mast
excluding minimum channel lap 475 mm (18.7 in).
15.
Install 1 mm shim to each bearing of inner lower
and intermediate upper basically. Lifting by
crane, insert inner mast into intermediate mast
from the upper side.
Mast And Carriage Bearings
Part No.
Bearing Size
Bearing O.D.*
D581814
Under size
108.6 mm (4.276 in)
D581815
Standard
109.6 mm (4.135 in)
D581816
Over size
110.7 mm (4.358 in)
22
3
4
5
6
A
C
B
IDCD040P
IDCS123S
IDCD031P
