6-4. 200 AMPERE ALTERNATOR (A0013036AA) TESTING AND REPAIR (Cont' )
Perform positive rectifier ground test as follows:
(a) Set ohmmeter to X1OK scale. Connect one test probe to a bare metal surface on the housing.
(b) Connect the second ohmmeter test lead to the positive rectifier mount. An infinity ( ) reading
indicates a high resistance. A LESS THAN infinity reading indicates a grounded rectifier mount.
The housing must be replaced.
Perform rectifier tests as follows:
(a) Set an ohmmeter to X1OK scale and connect the NEGATIVE probe to the positive rectifier
(b) Connect the POSITIVE probe to each of the three positive rectifier leads. An infinity ( ) reading
for any of the three leads indicates a HIGH resistance. The rectifier(s) is defective and the mount
must be replaced.