Komatsu — INSTRUMENTS AND CONTROLS

INSTRUMENTS AND CONTROLS 6. WORKING LAMP SWITCH 7. PREHEATER SWITCH (APS (automatic priming system) switch) / / ON /- OFF When the front and rear working lamps are turned ON, the pilot lamp and illumination lamp for monitor panel will also light up. When using APS, engine intake air is heated. Usually, the switch is in the OFF position. @ OFF position: The pre-heat function is not working. @ AUTO position: ON: Working lamps are ON. A When travelling on public @ ON oosition: If the switch is moved again from AUTO position and upward to roads, turn the working lamps OFF. ON, APS operation will begin. If the switch is released when at the ON position, it will automati- cally return to AUTO.

Method of using preheater switch, refer to the section “starting in cold weather”. When the engine settle down after starting, put the preheater switch in OFF position. When engine water temperature is below 13”C, APS starts. After starting, maintain this posi- tion until the lamp of the after- heating monitor goes out. * Before starting APS, put the switch to ON and then put it to this position. WW -02017 - 19-