Table 2-2. Troubleshooting - CONT
Test or Inspection
STEP 4. Check for binding internal components.
STEP 5. Check for defective motor. Use multimeter and check motor windings for an open or short
Excessive oil consumption.
STEP 1. Check for overheating of compressor due to inadequate lubrication or loss of lubrication. Shut
down and allow to cool (TM 55-1905-223-10).
Check for oil leaks and correct as required. Lubricate compressor (LO-55-1905-223-12).
STEP 2. Check for restricted air intake.
Clear air intake.
STEP 3. Check to see if oil level is too high.
Drain oil to proper level.
STEP 4. Check oil for proper viscosity.
Change oil using the correct viscosity (LO 55-1905-223-12).
STEP 1. Check belt tension.
STEP 2. Check for loose compressor or motor.
Secure all mounting bolts.
STEP 3. Check for loose pulley (sheave).
STEP 4. Check for excessive discharge pressure.
Adjust pressure or replace valves.
Compressor fails to start.
STEP 1. Check to see if power is on.
Turn on power.
STEP 2. Check for loose or broken power wire.
Connect or replace wire (TM 55-1905-223-24-18).