Komatsu — COLD WEATHER OPERATION

COLD WEATHER OPERATION STARTING USING MANUAL PREHEATING When the engine water tempera- ture is above 13”C, automatic pre- heating cannot be carried out. (When the preheat switch is turned to AUTO, the preheating monitor lamp goes out.) If it is difficult to start the engine, use the following procedure. CAUTIONS AFTER COMPLETION OF WORK 1. Mud and water on the machine body should be completely 2. Drain water collected in air tank and fuel system so that such water may be frozen at night. 3. As battery capacity drops at low ambient temperature, cover the battery or remove it from the ma- chine to be kept warm at night. removed. Park the machine on concrete or hard ground.

If this is impossible, park the machine on wooden boards. This will prevent the ac- cessories from freezing to the ground thereby preventing ma- chine movement the next morn- ing. Particular attention should be given to water drops collected on the surface of the hydraulic cylin- der piston rods. Such droplets must be fully wiped off because if water is frozen to the rod when the cylinder is utilized, the cylin- der oil seals may be damaged. 1) Put starting switch key to ON position. 2) Keep the preheater switch in ON position with hand until the preheating monitor goes off. 3) As soon as light goes off, quickly return starting switch to START position, and start engine.

4) After starting, put preheater switch in OFF position. A There is a danger of explosion when using a starting aid liquid for starting the engine, there- fore, never use it. ww-02891 - 67 -