TM 9-2350-261-20-2 D R A I N C O O L A N T S Y S T EMINITIAL SETUP Tools:General Mechanics Tool Kit (Item 30, App D)Materials/Parts:Suitable containerPersonnel Required: Unit MechanicReferences:See your -10Equipment Conditions: Engine stopped/shutdown (see your –10)Carrier blocked (see your -10 )Trim vane lowered and power plant frontaccess door open (see your – 10 )Hull bottom access cover removed(page 24–32)Driver’s power plant access panel removed(page 24-25)Power plant rear access panel removed(page 24-27 or 24–29)DRAINC A U T I ONCoolant in the cooling system must flowWARNINGfreely. If rust, scale, or sediment preventHot radiator coolant canthe free flow of coolant, flush system perbum you. Remove cap onlyTB 750-651. This is to be done only asif cool to touch. Drain cocksnecessary. Do not operate engine abovemay be hot. Turn cap slow-230°F (110°C). Serious engine damage canly torelease pressure.result.Replace cap by pressingdown and turning until tight. - -NOTEFor partial drain, attach a length of 1/2inch (13mm) hose to the drain cock onthermostat housing or on deaeratorelbow.Drain coolant into a cleancontainer. Save coolant for reuse. Closedrain cock.GO TO NEXT PAGE8-3
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