24. SERVICE PROCEDURE 24.1.7 REFILLING AN OVERHEATED SYSTEM Do not add coolant to the radiator of an overheated engine unless absolutely necessary. However, if necessary: 1. Remove the radiator cap. Refer to “RADIATOR CAP’ in this section. 2. Besure all the drains are closed. AY WARNING Use extreme caution when adding coolant to a hot radiator to avoid being burned. Wear gloves and goggles and keep away from the filler neck. 3. Add coolant to the radiator slowly until full. 4. Remove the reserve tank cap. 5. Addcoolant to the reserve tank until the level is between FULL and LOW marking on the tank. 6.
Whencoolant level remains fixed between the FULL and LOW on the reserve tank, install the reserve tank cap. 7. Run the engine 8. Stop the engine 9. Check for leaks and coolant level in the reserve tank. 24.1.8 CLEANING THE RADIATOR Minor internal sludge accumulations will be removed when flushing the cooling system. When internal accumulations are found that cannot be removed by normal flushing methods, consult your distributor. Remove all bugs and dirt from the radiator core, using air or water under pressure. Direct the flow through the core, opposite to the normal direction of air flow. 24.1.9 CLEANING THE RADIATOR PRE-SCREEN 1.
Remove the bolts retaining the radiator pre-screen and remove the PC160/180/200-6k-ENG pre-screen. 2. Clean the pre-screen with water under pressure. 3. Reinstall the pre-screen and retaining bolts. 3-31