Table 2-1. Unit Level Preventive Maintenance Checks and Services for M113A2 FOV[ternIntervalItem ToProcedureNot MissionNo.BeCapable It:Inspected68Semi-OperateNOTEAnnualA i r B oxThe purpose of this item is to ex-Heaterercise the vanes in the air boxAir Pumpheater air pump.Disconnect lead from fuel shut-off solenoid.To prevent engine from starting,pull fuel cutoff out (see your -10).CAUTIONAir pump can be damaged ifswitch is held on too long. Do notexceed a total of 20 seconds of op-eration.Have assistant crank engine and runair pump at the same time intermit-tently for total of 20 seconds. Listenfor air pump operation (see your -10).Connect lead to fuel shutoff solenoid.Lubricate air motor with OE/HDOevery 1500 miles, semi-annually or asrequired.2-90 Change 3TM 9-2350-261-20-1
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