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Electric and Instrument EL-8 Trouble analysis Note: ing indicator is perfect or not during the operation. Alternator negative earthing. the output of the alternator is normal, the alternator is not burnt down. Trouble Cause Method Charging indicator does not Short circuit or too large contact resistance Check the circuit and repair or replace the damaged parts Short circuit between the 3 phases and rotor winding and Diode damaged Regulator failed Charging current is too Output voltage is over low. Exclude the trouble and replace the dam- aged parts Diode is partly damaged The rotor winding has 1 phase or 3 phases bad contact Slipping belt The instrument indicator Belt is too loose and slippery. Tighten the contac- tors, and replace the instrument if it is dam- aged. Built-in regulator works abnormally The contact from engine fire wire connector to battery Alternator interior connection is loose. Instrument failed Engine has abnormal noise Belt is loose or worn, shaken during running Adjust the belt, replacebearing Bearing damaged or too large clearance Too large clearance of bearing caused interference |