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 TM 9-2320-285-24-2
3-9. ALTERNATOR MAINTENANCE (CONT)
STEP
LOCATION
ITEM
ACTION
REMARKS
TESTING (cont)
11
c.
Diode trio (55) Test
Set ohmmeter with 1-1/2 volt
(cont)
cell to lowest resistance range. Connect
ohmmeter leads to single connector and
one of three stator lead connectors as
shown.
Observe reading.
Reverse
ohmmeter leads and observe reading.
Repeat procedure with each of two
remaining stator lead connectors. There
should be one low and one high reading
for each test. Readings should not be
identical in each test. If readings are the
same, replace diode trio
Connect ohmmeter between each
stator lead and housing as shown to
check for grounds. If ohmmeter reading
is low, the stator assembly is grounded.
Replace a defective stator assembly
3-43
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