CHAPTER 5
GENERAL MAINTENANCE INSTRUCTIONS
Section I. SPECIAL TOOLS AND EQUIPMENT
5-2. Specially Designed Tools and
Equipment
No special tools or equipment are required
by direct and general support and depot main-
No specially designed tools or equipment
tenance personnel for performing maintenance
are required by direct and general support
on the rotary compressor.
and depot maintenance for performing main-
tenance on the rotary compressor.
Section II. TROUBLE SHOOTING
Possible Remedy
Probable Cause
5-3. General
Defective hose fitting . . . . Replace hose fitting gasket.
This section provides information useful in
gasket.
the diagnosing and correcting unsatisfactory
operation or failure of the rotary compressor
or any of its components. Each trouble symp-
Possible Remedy
Probable Cause
tom stated is followed by a list of probable
Impellers are damaged. . . . Replace impellers, para
causes. The possible remedy recommended is
Spur gears are dam- . . . . Replace spur gears, para
described opposite the probable cause.
For
aged.
engine field and depot maintenance trouble-
Impeller bearings are . . . Replace impeller bearings,
shooting, refer to TM 5-2805-208-14.
damaged.
5-4. Air Compressor Output Pressure
Inadequate
Possible Remedy
Probable Cause
Air compressor bearing . . . Replace air compressor
Probable Cause
Possible Remedy
bearings, para 6-5.
Air-relief valve defec- . . . . Adjust or replace air-
seals leaking.
Gear case air vent . . . . . . Clean vent.
relief valve, para 5-10.
tive or out of adjust-
ment.
plugged.
Section III. RADIO INTERFERENCE SUPPRESSION
5-8. Interference Suppression Components
5-7. General
Refer to engine TM 5-2805-208-14.
Refer to TM 11-483 for definitions, pur-
poses, source and methods used to obtain
proper suppression.
Section IV. REMOVAL AND INSTALLATION
OF MAJOR COMPONENTS
5-10. Air Relief Valve
5-9. General
a. Maintenance and service beyond adjust-
The rotary compressor consists of several
ment is not recommended. Should the air-re-
major components; the air blower, engine,
lief valve not function properly after the best
shaft coupling, and air relief valve.
possible service and adjustment, replace the
valve.
