BRAKES TROUBLESHOOTING AND MAINTENANCE PROCEDURES. (cont)
TEST OR INSPECTION
COMPRESSOR LEAKS OIL.
Step 1. Check for damaged mounting gasket. Check mounting bolt torque.
If mounting bolt torque is low, replace mounting gasket and tighten bolts to standard torques. Refer to TM
Step 2. Check for cracked crankcase, cylinder block or end cover.
Replace any cracked parts. Refer to paragraph 6-13.
Step 3. Check for loose end cover or cylinder block bolts.
If bolts are tightened correctly, go to step 4. Refer to paragraph 6-13.
Step 4. Check for loose oil supply or return line fittings.
Tighten as necessary. Refer to paragraph 6-9.
COMPRESSOR CONSTANTLY CYCLES.
Step 1. Check for leaking unloader pistons. Remove air inlet adapter, strainer plate and gasket. Refer to
paragraph 6-13. With compressor unloaded, check for air leakage around unloader pistons.
If leakage is found--replace piston. Refer to paragraph 6-13.
Step 2. Check operation of governor.
If governor does not operate properly--repair. Refer to paragraph 6-14.
Step 3. Test for excessive system leakage.
Repair system leaks, if necessary. Refer to paragraphs 6-9 and 6-11.
Step 4. Check for excessive reservoir contaminants.
Drain reservoir. Refer to TM 5-3805-261-10.