TM 9-2320-364-102-67Table 2-1. Operators Preventive Maintenance Checksand Services (Before) - CONT.LocationItemNo.IntervalItem toCheck/ServiceProcedureNot Fully MissionCapable if:11BeforeControls andIndicators -Cont.(h) LOW AIR PRESSURElight (9) and LOW AIRPRESSURE warning intermittentbuzzer (10) will sound and then turnoff when pressure is above 60psi (414 kPa).Buzzer does not soundbelow 60 psi (414 kPa).(i) DO NOT SHIFT light (11) willflash briefly and then extinguish. Alight will appear on the TRANSMISSION RANGE SELECTOR (12) indicating whatrange the transmission is in. Thetransmission should be in Neutral (N) position at start.(j) Tachometer (13) must indicatecorrect idle of 625 to 675 rpm.Tachometer does notindicate between 625and 675 rpm.