TM 5-3805-262-342-12. AIR BRAKE SYSTEM TROUBLESHOOTING (CONT)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION2. NOISY OPERATION OF AIR COMPRESSOR (Cont).Step 2.Remove cylinder head and unloader (page 3-466).Check for foreign matter laying on top of pistons.a. If foreign matter is present, disassemble cylinder block andcrankcase (page 3-475) and check parts for damage.b. If foreign matter not present, disassemble cylinder block andcrankcase (page 3-475) and check bearing for damage.2-112
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