TM 10-3930-671 -10 Table 3-1.  Operator Preventive Maintenance Checks and Services - CONT. Location Item Item To Not Fully Mission No. Interval Check/ Procedure Capable If: Service DAILY- OPERATOR’S Continued POSITION - Continued WARNING Be careful that the truck does not move unexpectedly during brake tests.  Notify personnel in vicinity to stand clear. Unexpected movement of truck could cause injury or death to personnel. 16 During Parking Brake Check for proper operation of parking Parking brake cannot brake.  With engine at idle, apply be adjusted enough to parking brake and engage transmission prevent truck from in FORWARD.  Increase engine speed moving. slowly for 5 seconds.  Truck should not move.  Repeat procedure in REVERSE. Notify unit maintenance, if necessary. 17 During Service Brake Check service brakes by moving truck Service brakes do not approximately 10 ft (3 m) while steadily operate properly or pull applying service brake pedal.  Truck to either side. should stop smoothly without noticeable side pull and vibration.  Notify unit maintenance, if necessary. 18 During Instrument Inspect panel for damage, unserviceable A malfunction/deficiency Panel instruments, and broken glass.  Monitor is observed during instrumentation regularly for proper operation which would function of all systems.  Notify unit damage the equipment maintenance, if necessary. if operation were continued. a. Engine Oil Pressure: Indicator light is inoperative.  Oil pressure With the engine  OFF and the ignition in light flashes or stays RUN position, indicator light should illuminated. illuminate.  Indicator light not illuminate at idle. b. Ammeter: Ammeter is inoperative. Ammeter light is With the engine OFF and the ignition in illuminated with engine RUN position, indicator light should running. illuminate.  Indicator light will not illuminate while engine is running. 3-8