. MAINTENANCE MAINTENANCE PROCEDURE WARNING 2 valves (1) of the corrosion set the container under drain water temperature to above 90 ° C (194 ° drain valve (3) and remove the replacing the corrosion resistor CORROSION RESISTOR system, run the engine for 5 4 - 25 Antifreeze is flammable, so keep it aw ay from flame. Antifreeze is toxic. When removing th e drain plug, be careful not to get water containing antifreeze o n you. If it gets in your eyes, lush your eyes with large amount of f resh water and see a doctor at once. Use city water for the coolant.
f river water, well water or other s uch water supply must be used, contact your Komatsu We recommend use of an antifree ze density gauge to control the mixing proportions. Prepare a container having capac ity of at least 22.4 liters (5.92 US gal)to receive the ant Prepare a water inlet hose. 1. Stop the engine, then tighte resistor. (Machines equipped with corr 2. Turn radiator cap (2) slowly a 3. Remove the undercover, the valve (3) to catch the coolant Open drain valve (3) at the bot coolant. 4. After drain the water, close dr add water. When the radiator low idling. Raise the water te F) and run for approx. 10 min 5. Stop the engine, then open drain plug to drain the water. 6.
After draining the water, clean For the cleaning method, follo 7. Close drain valve (3). Install the undercover. 8. 9. Replace the corrosion resistor For details of the method for cartridge, see "REPLACE CARTRIDGE (PAGE 4-67)". 10. Add water through the water f 11. To remove air in the cooling minutes at low idle, then for 5 this, leave the radiator cap re 12. Drain the cooling water from s ub-tank (4) and clean the inside of the sub-tank, then su pply cooling water to the middle level between the Full and LOW marks. e cap. Check the coolant level, and add water if the level is low. 13. Stop the engine and tighten th e cap. Check the coolant level, and add water if the le