TM 9-2350-287-10Table 2-1. Preventive Maintenance Checks and Services for Model M992A1LocationItem IntervalCrewmemberNo.Item toProcedureCheck/ServiceNot Fully MissionCapable If:47WeeklyNuclear,Biological,and Chemical(NBC) SystemAir Purifiera. Remove air inlet cover. WithMASTER switch turned to ON, turnVFPS (NBC) power switch to ON.Check motor for smooth operation.Check air outlets for airflow. Inspectfilter assembly for dents, cracks,secure mounting, and missing parts.VFPS (NBC) POWER SWITCHb. Check operation of NBC heaters.Turn VFPS (NBC) power switch toON. Turn air heater ON and checkthat green light illuminates (p. 2-202).4 8 Weekly LightsDRlVE/CREWMEMBERa. Check driving lights by turning ondriving lights switch (p. 2-195). De-press high-beam switch to make surelights operate properly on high andlow beamslight.b. Check HI BEAM indicator lightand MASTER WARNING indicator2-68
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