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 or damaged insulating sleeve.
Remove screw t o
nspect sleeve.
NOTE
If screw assembly is correct, and both
ohmmeter readings are the same, replace
the regulator.
SINGLE CONNECTOR
Plate 12340. Rectifier Bridge Check
RECTIFIER BRIDGE CHECK:
As shown on plate 12340, the rectifier bridge
has a grounded heat sink and an insulated heat
sink connected to the output terminal. (On 10-51
generators, there is an insulating washer loca-
ted between the insulated heat sink and end
f r a m e . ) Check the rectifier bridge as follows:
Plate 12339. Diode Trio Check
a. Connect the ohmmeter to the grounded
a. To check the diode trio, remove it from the
heat sink and one of the three terminals
end frame assembly by detaching the three nuts,
(plate 12340).
the attaching screw, and removing the stator as-
sembly.
IMPORTANT
NOTE
IF THE RECTIFIER BRIDGE IS CONSTRUCTED
AS SHOWN IN PLATE 12341, CONNECT OHM-
The insulating washer on the screw is
METER PRESSING DOWN VERY FIRMLY ONTO
assembled over the top of the diode
FLAT METAL CONNECTOR, NOT STUD (SHOWN
trio connector.
IN PLATE 12340).
b. Connect an ohmmeter having a 1-1/2 volt cell,
and using the lowest range scale, to the single
connector and to one of the three connectors (as
shown in plate 12333).
c. Observe the reading. Then reverse the ohm-
meter leads to the same two connectors. if both
readings are the same, replace the diode trio.
A good diode trio will give one high and one low
reading.
d. Repeat this same test between the single
connector and each of the other two connectors.
Also, connect the ohmmeter to each pair of the
three connectors (not illustrated). if any rear
ding is zero, replace the diode trio.
NOTE
Plates 12338 and 12339 illustrate two
diode trios differing in appearance.
Either one of these diode trios may be
Plate 12341. Rectifier Bridge Check (Showing
used, as they are interchangeable.
Correct Terminal Assembly Section)
5-50E
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