TM 5-3825-229-14&P4-46. SERVICE ENGINE (cont)g.FillCoolingSystem(cont).(3)Fill system with clean antifreeze and watersolution (50/50) until level is about one inch belowfiller neck.(4)When coolant appears at water pump plug (2),torque plug to 150 lb-in (17 Nm) (wet) and finishfilling.NOTEIn extremely low temperatures, -31C (-25F) orlower, increase percentage of antifreeze.CAUTIONDo not start pump engine unless distributorpump is primed. Refer to para. 2-16 to primepump.(5)Run engine for 10 minutes or until thermostat opens. As coolant circulates, air trapped in cylinder head will be released.Filling Cooling SystemWARNINGContact with hot coolant can cause serious burns. Allow cooling system to cool before releasingpressure.(6)Fill with additional coolant as needed. Maintain level so it is visible at the bottom of the filler neck.(7)Shut down unit and install filler cap.h.CheckWiring.(1)Check engine electrical wiring for breaks, damaged insulation and loose connections. Refer to para. 4-21 forrepair of electrical wiring.4-93
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