TM 9-2320-365-10Table 2-1. Preventive Maintenance Checks and Services (All Models) (Cont)LocationItemNo.IntervalItem toCheck/ServiceCrewmemberProcedureNot FullyMission CapableIf:NOTE• Oil pressure will increase when engine speed increases and willdecrease when engine speed decreases.• Engine oil pressure will be lower when engine is at maximum operatingtemperature (WATER TEMP gage reads 230F (110C).12BeforeOIL PRESSGage (Cont)b. Check that engine OILPRESS gage indicatesbetween 15-80 psi(103-552 kPa).b. Gage indicatesless than 15 psi(103 kPa).NOTEPerform check (13) only if vehicle is equipped with tachometer.13BeforeTachometerCheck that tachometerindicates between 750-850rpm while engine is at idle.If tachometer indicatesengine rpm outside of 750-850 rpm range, notify UnitMaintenance.Change 1 2-43
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