Diode Assemblies

Test diodes with suitable tester before dismantling slip ring end frame. DO NOT lay positive diode carrier on housing or a false reading will obtained. Disconnect conductor from "D+" to exciter diodes at heat sink. Unscrew spring and brush holder and remove from alternator. Unsolder stator lead and negative diode connections. Unscrew exciter-diodes heat sink and remove together with positive diodes heat sink. Clean all components with gasoline or trichlorethylene prior to further testing.