TM 55-1905-223-24-8
Table 2-2. Troubleshooting - CONT
Malfunction
Test or Inspection
Corrective Action
4.
Compressor overheats.
STEP 1. Check for excessive system leakage.
Secure all fittings and connections.
STEP 2. Check for inadequate lubrication.
Add oil (Table 2-1, PMCS, Item 1.)
STEP 3. Check for inadequate ventilation.
Remove any ventilation obstructions.
STEP 4. Check for wrong pulley rotation/installation.
Correct rotation.
STEP 5. Check for defective compressor valves.
Replace valves (paragraph 2-16).
5.
Excessive belt wear.
STEP 1. Check for motor pulley and compressor pulley misalignment. See paragraph 2-11 for proper
alignment.
Align pulleys (paragraph 2-11).
STEP 2. Check belt tension.
Adjust belts (paragraph 2-11).
STEP 3. Check to see if pulley is wobbling.
Secure or replace pulley (paragraph 2-26).
STEP 4. Check for damaged or rough pulley groove.
Replace pulley (paragraph 2-26).
6.
Excessive current draw.
STEP 1. Check for loose electrical connections.
Secure all connections.
STEP 2. Check for low input voltage (less than 216 volts).
Troubleshoot switchboard and distribution circuits
(TM 55-1905-223-24-18).
STEP 3. Check for low oil pressure.
Check oil level gauge and add oil if needed (Table 2-1, PMCS, Item 1).
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