24. SERVICE PROCEDURE REMOVAL To remove the cap, turn the cap to the left, or counterclockwise up to the safety stop until the cap is free to be removed. INSTALLATION When installing the cap, the gasket and contacting surfaces must be clean. Turn the cap to the right, or clochwise until snug. 24.1.4 CHECKING COOLANT LEVEL REMARK: Check the coolant level before starting the engine. 1. Check the coolant level in the radiator reserve tank e . The coolant level should be between the FULL and LOW markings on the tank. 2. If coolant must be added, remove the reserve tank cap d and add coolant until level is between the FULL and LOW markings on the tank. 24.1.5 DRAINING THE SYSTEM 1.
Run the engine until it reaches operating temperature; then stop the engine 2. Remove the radiator cap as outlined in this section. 3. Do not remove the coolant filter. 4. Open the radiator drain valve. PC450-ENG 3-28 WARNING • Hot, scalding coolant can spray out if the radiator cap is removed suddenly. Relieve system pressure by slowly turning the cap to the first notch or lifting the safety lever (if equipped). n Use extreme caution when adding coolant to the radiator to avoid being burned. Wear gloves and goggles and keep face away from the filler neck. WARNING n Before working on the engine or electrical system, disconnect the negative (ground) battery cable.
Tag the cable and controls to warn against starting. n Wear hand and eye protection when draining hot fluids. WARNING