Pontiac Fiero 1988 Service Manual page 411

6D3-6 CHARGING SYSTEM
R E M O V E BRUSH HOLDER,
R E G U L A T O R A N D R E C T I F I E R
" B A T "
- T E R M I N A L
SOLDERED
OR W E L D E D
CONNECTOR
M O U N T I N G
SCREWS
R E G U L A T O R
P R E S S F I T
OR S O L D E R E D
OR W E L D E D
C O N N E C T O R
S O L D E R E D
OR W E L D E D
S T A T O R L E A D
T E R M I N A L S
B R U S H H O L D E R
B R U S H
R E T A I N I N G PIN
R E C T I F I E R B R I D G E
10. Remove brush holder screw, disconnect terminal
and remove brush holder assembly. If brushes are
to be reused, clean with a soft dry cloth and use
retaining pin to hold brushes in holder.
11. Unsolder and pry open terminal between regulator
and rectifier bridge. Remove terminal and attaching
screws to remove regulator and rectifier bridge from
end frame.
TESTING R E C T I F I E R B R I D G E
D R I V E E N D B E A R I N G
END F R A M E
P U L L E Y
S E A L E D B E A R I N G
C O L L A R
C O L L A R
NUT
C O L L A R
C R O S S S E C T I O N
DE F R A M E CS-130
14. Note stack up of parts for drive end bearing assem-
bly. Hold rotor with hex wrench to remove, or
tighten shaft nut. Torque to 54-108 N«m (40-80 lb.-
ft.).
O H M M E T E R
O H M M E T E R
12. To check rectifier bridge, connect ohmmeter using
low scale to one terminal and heat sink (step 1).
Reverse leads. If both readings are the same, re-
place rectifier bridge. Check other two diodes in
same manner as step 1. NOTICE: Some digital
ohmmeters cannot be used to check diodes in
bridge. Consult ohmmeter manufacturer to deter-
mine tester capabilities.
13. Check remaining three diodes in same manner by
connecting ohmmeter from each terminal to base
plate (step 2). If both readings are the same on any
diode, replace rectifier bridge.
^ ^ G20213-6D
Fig. 8 0 3 C S 1 3 0 Generator Disassembly, Test and R e a s s e m b l y 2 of 3