Komatsu — OPERATING YOUR MACHINE

OPERATING YOUR MACHINE CHECKS AFTER STARTING Do not leave the key in START for more than 20 seconds. To start engine in cold weather, refer to COLD WEATHER OPERATION. After starting make the following checks. 3. Check if the exhaust color is normal or whether there is any abnormal noise or vibration. Avoid abruptly accelerating the engine until the completion of warm-up. Do not run the engine for more than 20 minutes at low idling or at high idling. When warming up the engine for at least 20 minutes, load it from time to time, or if this is not possi- ble run the engine at medium speed.

For machines where the air dryer is installed as an option, in cold temperatures below - 1 OX, * When using fuel with a low cetane value, starting the engine is usually difficult in normal tem- * peratures. In such cases, use the procedure for starting in cold weather to make it easier to start the engine. * Special starting When starting after running out of fuel, fill with fuel, then fill the fuel filter cartridge with fuel and bleed the air from the fuel system before starting. Refer to FUEL FILTER in every Depress accelerator pedal (1) lightly and run the engine with no load at midrange speed for about 5 minutes. After warm-up run is completed, check monitor lamps for proper operation.

Continue to run the engine at light load until the green ranges of the engine water temperature gauge and torque converter oil gauge light. * when operating the machine after it has been stopped for several hours, run the engine for at least 10 minutes after starting before moving the machine. 500 hours services. W-04281 - 47 -