CHAPTER 6 REPAIR OF THE BODY

CHAPTER 6

REPAIR OF THE BODY

Section I. REPAIR OF THE LIFT STRUCTURES

(3) Detach the tilt cylinder from the mast

6-1. General

brackets and remove the lift chains.

The lift structure of the vehicle consists of a mast

( 4 ) R e m o v e the carriage and backrest

assembly, carriage and backrest assembly, and

forks. The hydraulic lift mast consists of an inner

(5) Attach a chain hoist to the lifting eyes on

mast, an intermediate mast, and an outer mast. The

the back of the outer mast and raise the mast

intermediate and inner masts ride on adjustable

assembly enough to take the weight off the pivot

roller bearings, enabling them to telescope up and

pins.

down smoothly and with a minimum of drag. The

(6) Remove the capecrews and pivot pins.

carriage assembly is a welded structure having

(7) Lift the mast assembly free from the truck.

horizontal upper and lower fork support bars and a

b. Disassembly. (fig. 6-1.)

pair of vertical carriage support bars.

(1) Remove the chains (4 and 10), bolts (6 and

6-2. Mast Assembly

12), hydraulic tube (19) and bracket (20). Remove

a. Removal.

the elbows (21 and 23), fitting (25) and flow

(1) Remove the lifting forks (TM 10-3930-

regulator (26).

624-12).

(2) Disconnect hydraulic lines to the primary

and secondary lift cylinders. Cap or plug openings.

6-1