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Check the three diodes for continuity by connecting a ohmmeter
to both ends of each diode. The diode in the trio should have
continuity in only one direction.
Continuity in both directions, a diode is defective and heatsink
assembly must be replaced.
DIODE TRIO TEST
CHARGING SYSTEM
Y27BLOA
,.
Replace the brush by the following procedures if it has been
worn to limit line.
BRUSH REPLACEMENT
Y278MOA
((
0
l
W~imitline
2.
Unsolder pigtail and remove old brush and spring.
3.
Install brush spring and new brush in brush holder.
4.
Push brush into the brush holder end frame a distance of
0.079 to 0,118 in. (2 to 3 mm) or until a pin can be installed
to retain the brush in there retracted position.
Solder ~T,,"+,......o:~
/
2-3
mm
I
'(0.079--0.118 in.)
p
27-15
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