TM 5-4310-382-13
Table 3-3. Unit Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
AIR DELIVERY IS DROPPING.
Step 1.
Check engine operation for low rpm's.
Increase engine speed (see paragraph 2-27).
Step 2.
Check drain cock for air leaks.
Tighten drain cock.
Step 3.
Inspect air intake cleaner on air compressor for clogging.
Refer to MALFUNCTION 1, Step 2.
Step 4.
Check all air tube assemblies and fittings for leaks or looseness.
Tighten all air fittings and replace all defective air tube assemblies or hoses (see paragraph 3-31).
Step 5.
Check engine for loss of power.
Refer to MALFUNCTION 11.
5.
AIR COMPRESSOR IS PUMPING OIL.
Step 1.
Check air intake cleaner on air compressor for clogging.
Refer to MALFUNCTION 1, Step 2.
Step 2.
Check oil level in air compressor for overfilling.
Drain oil to proper oil level in air compressor (see paragraph 3-2).
6.
AIR COMPRESSOR IS RUNNING TOO SLOW.
Step 1.
Check engine operation for low rpm's.
Increase engine speed (see paragraph 3-27).
Step 2.
Inspect drive belts for proper adjustment.
Refer to paragraph 3-16 for drive belt adjustment.
3-10
