. OPERATION TROUBLESHOOTING OTHER TROUBLE 3 - 150 ELECTRICAL SYSTEM ( ) : Always contact your Komatsu distributor when dealing with these items. In cases of problems or causes which are not listed below, ask your Komatsu distributor for repairs. Problem Main causes Remedy Lamp does not glow brightly even when engine runs at high speed Lamp flickers while engine is running Defective wiring ( Check, repair loose terminals, disconnections) Insufficient battery charge Charge, Add distilled water Defective belt Check, replace belt. See EVERY 500 HOURS SERVICE.
Battery charge system caution pilot lamp lights up while engine is running Defective alternator ( Replace) Defective wiring ( Check, repair) Abnormal noise is generated from alternator Defective alternator ( Replace) Starting motor does not turn when starting switch is turned to START Defective wiring ( Check, repair) Defective starting switch ( Replace switch) Insufficient battery charge Charge Defective battery switch ( Replace switch) Loose ground cable terminals between engine and chassis Check, repair Starting motor turns engine sluggishly Defective wiring ( Check, repair) Insufficient battery charge Charge Starting motor disengages before engine starts Defective wiring ( Check, repair) Insufficient battery charge Charge