(5) Test negative diode rectifier assembly as follows:
(a) Connect negative lead to lead of each diode and positive
lead to heat sink. Tester should indicate open circuit at
(b) Connect positive lead of tester to heat sink and touch nega-
tive lead to each diode lead. Tester should indicate con-
(c) Replace negative diode rectifier assembly if any diode fails
to test correctly.
(6) Visually inspect stator assembly for rub marks on the interior
diameter, evidence of burned or shorted windings, and other
assembly. Replace stator assembly if ohmmeter indicates open
circuit of one or more phase.