TM 5-4310-354-14
Table 5-1. Direct Support and General Support Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
AIR COMPRESSOR - continued
22. TACHOMETER-HOURMETER ERRATIC.
Step 1.
Inspect tachometer-hourmeter adapter on the engine for defective parts.
Replace damaged drive adapter parts (figure 7-42).
23. COMPRESSOR FAILS TO LOAD OR UNLOAD.
Step 1.
Check for improperly set or damaged air pressure regulator.
Repair or replace then set air pressure regulator (para 6-7).
Step 2.
Inspect compressor intake control mechanism.
Replace defective parts (para 6-11).
24. COMPRESSOR VIBRATES AND METALLIC NOISE IN COMPRESSOR.
Step 1.
Inspect for sticking or broken rotor blades.
Replace defective blades (para 6-12).
Step 2.
Inspect for damaged rotor bearings, rotor, or stator.
Overhaul the compressor and replace all defective parts (para 6-11).
Section III. GENERAL MAINTENANCE
5-6. General. This section contains those repair
a. Torque Data.
instructions and references which are the responsibility
specific torque values recommended by the compressor
of Direct Support and General Support Maintenance, as
unit manufacturer and the engine manufacturer.
authorized by the maintenance allocation chart,
b. Wiring Diagram.
Refer to figure 1-3 for
schematic wiring diagram of the air compressor unit
electrical system.
data, diagrams, and repair and replacement standards
are listed or referenced below.
schematic air line diagram.
5-9