DIRECT SUPPORT AND GENERAL SUPPORT
Section I. REPAIR PARTS SPECIAL TOOLS AND EQUIPMENT
5-1. Special Tools and Equipment
5-2. Maintenance Repair Parts Repair parts and equip-
There are no special tools, or equipment, required for
ment covering direct and general support maintenance of
maintenance of the air compressor assembly.
the air compressor assembly are listed and illustrated in
Section II. TROUBLESHOOTING
may occur, not all tests or inspections and corrective ac-
tions. If a malfunction is not listed or is not corrected by
a. This section contains troubleshooting informa-
the listed corrective action, notify your Supervisor.
tion for locating and correcting most of the trouble that
may develop in the air compressor. Each malfunction for
an individual component is followed by a list of tests or
inspections which will help you determine probable
Table 5-1 lists the common malfunctions that you may
causes and suggested corrective actions to remedy the
find during the operation or maintenance of the air com-
pressor or its components. You should perform
b. This manual cannot list all malfunctions that
Table 5-1. Troubleshooting
TEST OR INSPECTION
Before you use this Table, be sure you have performed all normal operational checks. If you have a malfunction which is not listed in
this Table notify your supervisor.
1. COMPRESSOR PUMPING OIL
Check cylinders or piston for wear, scratches or scoring.
Check for piston rings broken, or not seated in.
2. KNOCKS OR RATTLES
Check for carbon on top of piston.
Check for loose, broken or carbonized air finger valves.
Separate air heads from spacers and look finger valves over carefully (para 6-6). Replace defective finger valves
Check for worn or scored connecting rod, piston pin, or crank pin bushings.
3. AIR DELIVERY DROPPING
Check for leaking, broken, carbonized or loose finger valves.
Tighten or clean leaking or carbonized valves. Replace defective valves (para 6-6).
Check for scratched, worn or scored cylinders or pistons.
Check for piston rings broken or not seated in.
4. MOTOR OVERLOAD RELAY TRIPS
Check line voltage.
Tighten loose connections. Replace defective fuses.
Check for leaking, broken, or carbonized valves, or restricted air passages.
Remove restriction from air passages. Repeat Step 1 of paragraph 3 above.