TM 9-2350-287-20-1ITEMNO.8910TABLE 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) FOR M992A1S=SEMIANNUALA=ANNUALINTERVALSsAITEM TO BEINSPECTEDFINAL DRIVEUNIVERSALJOINTSAPU CHAINCASEDRAINBUMP STOPBRACKETSPROCEDUREa. Check for missing or brokenIockwires (11) on mountingbolts (1 2).b. If missing or broken, tightenmounting bolts (12) to 90 ft-lb,then install Iockwires.WARNINGAPU engine is hot after operation.Use caution when reaching intoAPU compartment.a. Open side APU access door(refer to TM 9-2350-287-10).b. Drain and refill APU chaincase(Appendix G).a. Check for loose mounting bolts (13)on bump stops (14) with wrench.b. If loose, tighten mounting bolts (13)between 300 and 350 ft-lb (405 and475 N•m).NOT FULLY MISSIONCAPABLE IFa. Any loose, missing, orbroken Iockwire ormounting bolts.2-21
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