TM 9-2350-287-20-1ITEMNO.4TABLE 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) FOR M992A1S=SEMIANNUALA=ANNUALINTERVALSITEM TO BEINSPECTEDENGINE FANDRIVE SYSTEM(continued)AIR CLEANERFILTERPROCEDUREg. Inspect fan for cracked or looserubber boots (5) and loose retainingrings (4) on boot covering drive shaftuniversal joints (3).WARNINGIf nuclear, biological, or chemical(NBC) exposure is suspected, all airfilter media will be handled by per-sonnel wearing full NBC protectiveequipment.NOTELeft and right projectile rack assem-blies must be moved to the rear ofthe vehicle to gain access for checks4 and 6.a. Move left and right projectile rackassemblies to rear of vehicle(refer to TM 9-2350-287-10).b. Check for worn or missing seals(6) and hoses (7).NOT FULLY MISSIONCAPABLE IFg. Rubber boot is crackedor boot retaining ring oncovers for drive shaftuniversal joints is loose.b. Any seals or hoses arecracked, worn or missing.2-18
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