I g WARNING ,I When removing the drain plug, be careful not to get any water containing antifreeze on yourself. 1. Stop the engine and tighten corrosion resistor valve 0. 2. Turn radiator cap @ slowly to remove it. 3. Place a container to catch the coolant, then open drain valve @ at the bottom of the radiator and drain plug @ on the side face of the oil cooler. 4. After draining the coolant, close drain valve @ and drain plug (4), and fill with tap water. 5. When the radiator is full, open drain valve @ and drain plug 0, run the engine at low idling, and flush water through the system for 10 minutes.
Adjust the flow of the water flowing in and draining out to ensure that the radiator is always full during the flushing operation. While flushing water through the system, watch carefully that the water inlet hose does not come out of the radiator filler port. I AE080081 I I I 6. After flushing, stop the engine, open drain valve @ and drain plug 0, drain out all the water, then close the valve and plug again. 6. After flushing, stop the engine, open drain valve @ and drain plug 0, drain out all the water, then close the valve and plug again. 7. After draining the water, use a cleaning agent to carry out cleaning. Use a genuine Komatsu product for the cleaning agent.
Follow the instructions on the cleaning agent container when carrying out the cleaning operation. 8. After cleaning, open drain valve @ and drain plug 0, drain out all the water, then close drain valve @ and drain plug 0, and fill with tap water to near the water filler port. 3-24