Specifications

Vehicle System Testing & Adjusting 62

2. Make sure stationary mast upper bearings are

properly shimmed 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 stationary upper bearings.

3. 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

cannot move by rolling up and down, there might

be excessive shims. Pull out the intermediate

mast from the stationary mast and remove shim

0.5 mm to both stationary upper bearings.

Repeat same procedure of above until properly

shimmed. There is to be contact zero clearance

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.

1. 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.

IDCS124S