FREELIFT UPRIGHT ASSEMBLY

UPRIGHTS

FREELIFT UPRIGHT ASSEMBLY

B. REMOVAL

A. GENERAL

1. Lower the carriage. Remove the load arms.

(Fig. 1) Disconnect the high pressure and bleed back

The uprights are constructed of formed channel with

hoses from the carriage.

bronze strip bearings. The uprights are pivoted around

the axle housings of the drive axle and are held to the

axle by caps on the upright hangers. The strip bearings

are located between the inner and outer channel

members.

Besides a three-stage hoist cylinder and carriage, the

free lift upright assembly includes an inner upright and

an outer upright.

CARRIAGE

A. GENERAL

This is a hook type assembly equipped with canted load

rollers. This type of roller is designed to take the load

and side thrust. The rollers are shim adjusted. The

Figure 1.

bearings are shielded and lubricated for the life of the

bearing.

Attach hoist to the carriage, and remove the

Working in conjunction with the latching mechanism is a

slack.

lug and block, The block lifts the inner upright while the

lug triggers the latching mechanism, at the end of the

3. Disconnect the load chains from the carriage.

carriage free-lift stroke.

(Fig. 2) Lift the inner upright until it is free of the

carriage.

When the free-lift stroke is completed, a latch on the

inner upright is locked around the lug, securing the

carriage to the inner upright. This block will be referred

to as a "lifting block".

Load arms on the hook type carriage are hooked over

the top of the upper crossmember, and held in position

by a spring-loaded pin and lever assembly. The pin is

pushed into notches on the top of the upper

crossmember by the spring. Pulling up on the lever

disengages the pin so the load arm can be repositioned.

Figure 2.

4. Either back the truck away from the carriage or

pull the carriage away from the truck.

B-169