TM 5-3805-258-24-1Every 2000 Service Hours or 1 YearCOOLING SYSTEM -CHANGE COOLANTWARNINGAt operating temperature,is hot and under pressure.engine coolantWARNINGSteam can cause personal injury.WARNINGCheck coolant level ONLY when engine isstopped and radiator filler cap is cool en-ough to touch with your hand.WARNINGRemove filler cap slowly to relievepressure.WARNINGCooling System Conditionerkali. Avoid contact with skinprevent personal injury.WARNINGUse all cleaning solutions withCAUTIONIf the machine is to be stored in,contains al-and eyes tocare.or shippedto, an area with freezing temperatures, thecooling system must either be protected tothe lowest expected outside temperature ordrained completely.Maintain a 3% concentration of CaterpillarCooling System Conditioner or equivalent. Fol-low the recommendations on the container.Do not use Caterpillar Cooling System Condi-tioner with Dowtherm 209 Full-Fill coolant.Follow the recommendations provided withDowtherm 209 Full-Fill coolant.When conditioner is added to the coolingsystem at recommended intervals, it is notnecessary to drain and refill yearly. Thecooling system drain period can then beextended to 4000 service hours or 2years.Use clean water that is low in scaleforming minerals - not softened water.Measure the specific gravity of theantifreeze solution frequently in cold weatherto assure adequate protection.The machine must be level, the enginestopped and cool. The bucket must belowered with slight down pressure.Apply the parking brake.1. Loosen the radiator cap slowly torelieve any pressure. Remove the cap.1-81
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