Section V. REPAIR

SECTION V

REPAIR

5-3. GENERAL DISASSEMBLY.

5-1. GENERAL. Instructions within this section

provide for removal and repair of all major

a. Preformed packings, gaskets, seals, and similar

c o m p o n e n t s and assemblies of the vehicle. It is

material should be discarded when removed. Do

assumed that organizations undertaking such depth

not use metal tools to remove sealing material. To

of repair shall have proper facilities and equipment

prevent damage to mating surfaces, use wood or

for proper performance of the work. The following

plastic as probes.

paragraphs 5-2 through 5-7 provide general

instructions to be used as a guide in performing

b. Cotter pins, lockwashers, lockwire, self-locking

disassembly, cleaning, inspection, repair, and

n u t s , and any similar locking devices shall be

reassembly.

discarded when removed.

c. To facilitate reassembly and installation, apply

identifying tags to mating points of electric,

p n e u m a t i c , hydraulic lines, etc., when they are

Prior to performing any repair by welding,

disconnected.

Identify

parts

similar

refer to

paragraph 5-8 for specific

configuration to ensure correct reassembly.

i n s t r u c t i o n s regarding welding of highly

stressed parts.

d. To prevent moisture and foreign matter from

5-2. GENERAL REMOVAL INSTRUCTIONS.

entering open housings, lines, and other openings,

apply protective covers as soon as practicable after

disassembly. Wrap all parts in clean paper or dip

a. Before attempting removal of any electrical or

hydraulic component, make certain that the

p a r t s in preservative oil, Military Specification

MIL-C-8188, or equivalent.

system is not energized. Disconnect battery ground

strap, lower carriage to the floor and provide

e. Remove only those parts requiring repair or

suitable blocking to relieve all pressure from the

replacement. Do not disassemble a component any

hydraulic system.

further than necessary to accomplish needed

repairs.

b. Insure that adequate clearance is available for

removal of the component. Disassemble the truck

5-4. GENERAL CLEANING.

to the extent necessary to provide adequate

working clearance.

a. When cleaning ball or roller bearings, place

c. Use a chain hoist, jack or other aid when

them in a basket and suspend them in a container

lifting the heavier components. The lifting device

of dry cleaning solvent overnight. If necessary, use

should be positioned and attached to the

a brush to remove caked grease, chips, etc. Avoid

component to remove all strain from the mounting

r o t a t i n g the bearing before solid particles are

hardware before the last of the hardware is

removed to prevent damaging races and balls. When

removed.

bearings have been cleaned, spin them immediately

in light lubricating oil to remove solvent.

d. To facilitate reassembly and installation, apply

b. Do not clean preformed packings or other

identifying tags to mating ends of electric or

rubber parts in dry cleaning solvent. These parts

hydraulic lines as they are disconnected. Identify

should be wiped clean with a clean, dry, lint-free

p a r t s of similar configuration to insure correct

reassembly.

cloth.

5-1