TM 5-4320-300-14Table 4-1 Organizational Preventive Maintenance Checks and Services - ContinuedW -WeeklyQ- QuarterlyM -MonthlyS- SemiannuallyIntervalItemItemTo BeNo. W M Q SInspected Procedures15Fuel ControlRemove valve coverTubemounting bolts andvalve cover.Examinethe fuel control tube,control lever, rackcontrol lever, andbrackets for exces-sive wear, cracks,or other damage.Examine the returnsprings for wear orfracture. If thecomponents areworn, fractured,cracked, or other-wise damaged,notify direct sup-port maintenance.Replace valve coverand mounting bolts.Tighten securely.16·Cooling SystemTo flush the system proceed as follows:WARNINGHot coolant may be released when radiator capis removed. Allow engine to cool before removingcap. Open cap part way to ensure that pressure incooling system is released, then remove cap.a. Drain solution fromradiator by remov-ing the radiator capand opening theradiator draincock.Then drain thecylinder block byopening the drain-cock on the bottomof the oil cooler(behind fuelstrainer).4-28
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