TM 9-2320-364-102-76 Table 2-1. Operators Preventive Maintenance Checksand Services (Before) - CONT.LocationItemNo.IntervalItem toCheck/ServiceProcedureNot Fully MissionCapable if:∑Before performing the next step, ensure that no personnel are in front of truck. Be ready to apply the service brake. Operator must remain in cab while performing this check to prevent possible serious injury or death to other personnel.∑Ensure air pressure is between 110 to 125 psi (758 to 861 kPa) or injury to personnel may result.12BeforeService andParkingBrake(a) Check for proper operation ofparking brake (1). With engine atidle, apply parking brake andengage transmission in Drive (D).Increase engine speed slowly to1000 rpm. Truck should not move.Truck moves.(b) Check brakes by moving truckapproximately 60 ft. (18.3 m) andsteadily apply service brakepedal (2). Truck should stopsmoothly without noticeable sidepull and vibration. Placetransmission in neutral.Service brakes donot operate properlyor pull to either side.