TM 5-4310-451-14
Table 4-2. Mechanical Troubleshooting (Con’t).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 3
Check that engine is operating properly.
Troubleshoot engine.
18.
AIR COMPRESSOR SHUTS DOWN WITH AIR DEMAND PRESENT.
Step 1
Check for faulty thermostat in thermal valve.
Replace thermal valve elements (see paragraph 4-89).
Step 2
Check for clogged compressor main oil filter.
Clean or replace main oil filter element (see paragraph 4-93).
Step 3
Check for dirty radiator core.
Clean radiator core.
19.
AIR COMPRESSOR OVERHEATS.
Step 1
Check for faulty thermostat in thermal valve.
Replace thermal valve elements (see paragraph 4-89).
Step 2
Check for plugged oil cooler hoses.
Notify Direct Support Maintenance.
Step 3
Check for clogged air compressor main oil filter.
Clean or replace main oil filter element (see paragraph 4-93).
Step 4
Check for plugged oil return line.
Clean or replace oil return line (see paragraph 4-101).
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