COOLING SYSTEM Topping Off WARNING! If frequent topping off is necessary and there are no visible signs of coolant leaks when the engine is cold, check for leaks with the engine operating at normal temperature. NOTE Removing the fill cap on a hot en- gine can cause scalding coolant to spray out and burn you badly. If the engine has been in opera- tion within the previous 30 minutes, be very careful in removing the fill cap. Protect face, hands, and arms against escaping fluid and steam by covering the cap with a large, thick rag. Do not try to remove it until the surge tank cools down or if you see any steam or coolant escaping. In any situation, remove the cap very slowly and carefully.
Be ready to back off if any steam or coolant be- gins to escape. Top off the cooling system when coolant does not rise to the level indicated as on the surge tank. The surge tank is translucent which allows the coolant level to be seen. Add coolant through the surge tank fill cap. Do not remove the pressure cap to fill the cooling system. Surge Tank NOTE Do not use the pressure cap to fill the surge tank with fluid. 5 Proper Coolant Level NOTE Do not overfill a cooling system. Ex- cess coolant may result in overflow, loss of antifreeze, and reduced cor- rosion protection. 5-84 Y53-6077-1B1 (03/17)