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TM 9-2320-304-14&P
4-143
Organizational Maintenance Instructions (Cont)
Section VI. Maintenance Procedures
4-19. MAINTENANCE INTRODUCTION.
This chapter provides maintenance instructions for repairing, replacing, installing, and servicing the Load
Handling System (LHS) components as authorized by the Maintenance Allocation Chart (MAC) at the Organi-
zational Maintenance level.
4-20. GENERAL REMOVAL INSTRUCTIONS.
a. Work Required. Remove parts if repair or replacement is required. Do not disassemble a
component any further than needed.
b. Preparation. Before removal of any electrical, hydraulic, or air system components ensure system
component is not energized or pressurized. Disconnect battery ground cables. Relieve air system
pressure. Before removal of fasteners (nuts, locknuts). Remove any paint on threads to prevent
binding of fasteners.
c. Identification. To ease assembly and installation, tag and mark shims, connectors, wires, and
mating ends of lines before disconnecting them. Identify similar parts to ensure correct assembly.
d. Position of Valves. Before removing valve handles, mark or diagram their positions when open
and closed. This will help during assembly.
e. Location. Before removing cable ties, cushion clamps, hoses, tubing, wiring, etc., note the
location, position, and routing to ensure correct assembly.
4-21. GENERAL DISASSEMBLY INSTRUCTIONS.
a. Cleanliness. Work area must be as clean as possible to prevent contamination of components.
CAUTION
Self-locking fasteners that are loosened must be replaced, not tightened.
b. Locking Parts. Replace all lockwire, lockwashers, cotter pins, and locknuts at time of reassembly.
c. Expendable Parts. All gaskets, packings, and seals removed during repair must be discarded and
replaced with new parts.
d. Removing Seals. Be sure all traces of oil, gaskets, and sealants are removed from components.
When possible, use wood or plastic probes and scrapers to prevent damage to machined surfaces.
e. Parts Protection. To keep dust, dirt, moisture, and other objects out of internal parts of systems
or components, cap or tape over all open tubes, hoses, air lines, fittings, and component openings as
soon as parts are removed. Wrap all removed parts in clean paper or dip parts in preservation oil.
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