. OPERATION TROUBLES AND ACTIONS OTHER TROUBLE 3 - 137 Electrical System ( ) : Always contact your Komatsu distributor when dealing with these items. In cases of problem or causes which are not listed below, contact your Komatsu distributor for repairs.
Problem Main causes Remedy Lamp dose not glow brightly even when the engine runs at high speed Defective wiring Defective adjustment of fan belt ( Check, repair loose terminals, disconnections) Adjust fan belt tension For details, see EVERY 250 HOURS SERVICE Lamp flickers while engine is running Charge level monitor dose not go out even when engine is running ( Replace) ( Check, repair) Abnormal noise is generated from alternator ( Replace) Starting motor dose not turn when starting switch is turned to ON ( Check, repair) Charge Starting motor pinion repeatedly moves in and out (makes ratting sound) Charge Starting motor turns engine sluggishly Charge ( Replace) Starting motor disengages before engine start ( Check, repair) Charge Pre-heating monitor dose not lights up ( Check, repair) ( Replace) Oil pressure monitor dose not lights up when engine is stopped (starting switch at ON position) ( Replace) ( Replace) While the deceleration monitor lamp is not lighted, the fuel adjusting dial does not work ( Replace) ( Replace) ( Replace) The engine speed does not stop or rise, even if the deceleration switch is depressed ( Check, repair) ( Check, repair)