TM 10-3930-659-20 Table 3-1.  Preventive Maintenance Checks and Services (PMCS) (Con't). Location Not Fully Item Item to Mission No. Interval Check/ Service Procedure Capable If: 4 Quarterly Engine Radiator Coolant WARNING Level DO NOT remove radiator fill cap unless engine is cold.  This Is a pressurized cooling system and escaping steam, hot water, or coolant will cause serious burns. Check coolant level in engine radia- tor (see TM 10-3930-659-10).  Coolant level must be at bottom of filler neck. Add antifreeze (Item 3, Appendix C) as required to obtain proper level (see paragraph 5-38). 5 Quarterly Fuel Filter WARNING Diesel fuel is combustible.  DO NOT smoke or allow open flame near fuel filter.  Failure to follow this warning will result In death or serious Injury to personnel.  If you are burned, Immediately seek medical aid. Drain water and sediment from fuel filter (see paragraph 5-17). 6 Quarterly Parking Push down on parking brake pedal. Parking pawl engages Brake Parking pawl should not engage in in last notch. If parking pawl does engage last notch, adjust parking brake (see paragraph 10-2). 7 Quarterly Tires Check tires for proper air pressure: Front.............................55 psi (379 kPa) Rear .............................40 psi (276 kPa) 3-5