Charging System: Testing and Inspection
Before conducting a generator test, make sure that the battery is fully charged. A 30-Volt voltmeter and suitable test probes are necessary for the test. The generator can be checked easily by referring to the Inspection Table.^ Before starting, inspect the fusible link.
^ Use fully charged battery.
WITH AN IC REGULATOR
*: When field circuit is open, check condition of rotor coil, rotor slip ring and brush. If necessary, replace faulty parts with new ones.
MALFUNCTION INDICATOR
The IC regulator warning function activates to illuminate "CHARGE" warning lamp. If any of the following symptoms occur while generator is operating;
^ B Terminal is disconnected.
^ S Terminal is disconnected or related circuit is open.
^ Field circuit is open.
^ Excessive voltage is produced.
MAIN DIODES
^ in order to check diodes, they must be unsoldered from the stator.
^ Use an ohmmeter to check condition of diodes as indicated in chart.
^ If any of the test results are not satisfactory, replace diode assembly.
DIODE CHECK
^ Check continuity using an ohmmeter.
^ Diode is functioning properly if test results are as shown in the figure.
NOTE: Specifications may vary depending on the type of tester.
^ Diodes for warning lamps are built into the combination meter printed circuit.