SPECIFICATIONS

Vehicle Systems Testing And Adjusting

Mast and Carriage

Mast Adjustment

NOTE: The Standard, Full Free Lift and Full Free

Triple Lift mast load bearings are all adjusted the

same way. The mast shown in the following illustra-

tions is the Full Free Triple Lift mast.

To make the mast clearance adjustments, mast must

be removed from the lift truck.

Carriage, chain and lift cylinder must be removed

from the mast for easy adjustments.

Use the procedure that follows to adjust the load

bearings.

A. Lower Bearing Adjustment of

Intermediate Mast

Mast Adjustment Lower Bearings

(A) Zero clearance. (B) Minimum clearance. (C) Zero clearance.

(3) Bearing. (4) Bearing. (5) Shims. (6) Shims.

1. Select lower bearings (3) and (4) from the chart to

obtain minimum clearance (B) between bearing

and channel leg for full channel length. Use same

bearing on left and right side.

* Permissible tolerance L 0.08mm (.003in)

2. Find narrowest point by ruler on the stationary

mast in the area where the bearings make contact

at 475 mm (18.7 in) channel lap.

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)

IDCD036P

IDCS123S