Table 2-1. Unit Level Preventive Maintenance Checks and Services for M113A2 FOVItemIntervalItem ToProcedureNot MissionNo,BeCapable If:Inspected66Semi-CoolingAddition of extender to antifreeze is aAnnualSystemone time service. When the extender isadded to the antifreeze, the date mustContinuedbe recorded in the “remarks” block ofDED Form 314. If the DD Form 314identifies the unsafe coolant as havingbeen extended before, or the coolant asartic antifreeze, then the coolant mustbe drained and replaced with freshcoolant. See Flush Cooling System,Chapter 8 (pages 8-3 through 8-6).Check coolant cleanliness by drainingExcessive coolanta small amount of coolant into a cleancontamination iscontainer, and look for excessive rust,found.foreign particles and/or sediment.2-88 Change 3TM 9-2350-261-20-1
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