TM 9-4310-397-14Table 4-1. Preventive Maintenance checks and Services for 16MS125 - ContinuedLocationItem No.IntervalProcedureNot Fully Mission Capable If:Item toCheck/Service20 - d. Open drain cock (104) and waitCont for all coolant to drain out.Contact your local environmentalofficer for guidance on how toproperly dispose of coolant inaccordance with localregulations.e. Place pan (section II, appendix D)under drain cock (104).f. Flush the cooling system bypouring clean water into theradiator fill collar (106) untilclean water comes out the draincock (104). Wait for all coolant todrain out. Contact your localenvironmental officer forguidance on how to properlydispose of coolant in accordancewith local regulations.g. Close drain cock (104).NOTEA drain cock is also provided onthe curbside of the engine block.This drain cock is to be usedonly to ensure that engine hasbeen totally drained of coolantshould the unit be storedwithout proper antifreeze mixduring freezing temperatures.h. Install approximately 18 quartsof antifreeze (item 8, section II,appendix E) into radiator fillcollar (106) or until antifreeze isvisible at the top of the radiator.i. Install radiator fill cap (105).j. Remove pan if still under draincock (104).4-37
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