Toyota Land Cruiser 1988 Repair Manual page 279

CH-10
CHARGING SYSTEM- Alternator
Positive ( +) Terminal
(Stud Bolt Head)
Ohmmeter
' .n
i
~a
Negative (-) Terminals i
Q
[Oi:+---
(Stud Bolt Head}
j
ol
Rectifier Terminal
Ohmmeter
CH0555
CH0556
Rectifiers (Rectifier Holder)
1. INSPECT POSITIVE SIDE RECTIFIER
(a) Using an ohmmeter, connect one tester probe to the
positive ( +) terminal and the other to each rectifier
terminal.
(b) Reverse the polarity ofthe tester and repeat step (a).
(c) Check that one shows continuity and the other
shows no continuity.
If continuity is not as specified, replace the rectifier
holder.
2.
INSPECT NEGATIV.E SIDE RECTIFIER
(a) Using an ohmmeter, connect one tester probe to the
negative (-) terminal and the other to each rectifier
terminal.
(b) Reverse the polarity of the tester probes and repeat
step (a).
(c) Check that one shows continuity and the other
shows no continuity.
If continuity is not as specified, replace the rectifier
holder.
Bearings
1. INSPECT FRONT BEARING
Check that the bearing is not rough or worn.