4.8 Service procedure When required Maintenance 4. Set a container in position to catch drained antifreeze mix- ture, then open valve (2) under the radiator to drain cooling water. 5. After draining the water, close drain valve (2) and fill with tap water. 6. When the radiator is full, start the engine, and run it at low idling. Keep the engine running at low idling for 10 minutes until the water temperature reaches more than 90°C (194°F). GK015011 2 7. Stop the engine, open drain valve (2), drain the water, then tighten them again. 8. After draining the water, clean the cooling system with clean- ing agent. For the cleaning method, see the instructions for the clean- ing agent. 9.
Decide the proportions of antifreeze and water according to the table for the mixing rate of water and antifreeze. 10. To remove the air in the cooling system, run the engine for 5 minutes at low idling, and for another 5 minutes at high adling. (When doing this, leave the radiator cap off.) 11. After draining off the cooling water of reserve tank (3) , clean the inside of the reserve tank and refill the water between FULL and LOW level. 3 12. Stop the engine. About 3 minutes later, supply city water up to the water filler, then close radiator cap. GK015004 GK032247 4-28 WA150-5H – VEAM934100