TM 10-3930-675-100013 00-10Table 1. Preventive Maintenance Checks andServices (PMCS) for RTCH-RT 240 - Continued.ITEM NO.INTERVALLOCATIONPROCEDURENOT FULLY MISSIONCAPABLE IF:ITEM TOCHECK/SERVICEWARNING• DO NOT service cooling system unless engine has been allowedto cool down. DO NOT remove radiator cap. Add coolant only toexpansion tank. This is a pressurized cooling system and escap-ing steam or hot coolant will cause serious burns.• Wear effective eye, glove, and skin protection when handlingcoolants. Failure to do so may cause injury.a. Visually check radiator for leaks,damage or obstructions. Removeany obstructions.a. Class III leaks are evident.b. Check coolant level in expansiontank. Level should be between theMIN and MAX lines on tank. Addcoolant as required.EXPANSIONTANKMINMAX
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