6-3.3. 100 AMPERE DUAL VOLTAGE ALTERNATOR (12447110) TESTING AND REPAIR
This task covers:
c. Static Testing
General mechanic's tool kit:
Alternator removed (TM 9-2320-280-20).
General Safety Instructions
Always support alternator core and shaft assembly
during removal and installation.
Mount pivot arm of 500 amp test stand to high-speed side and install mounting flange adapter on
pivot arm. Connect pulley driveshaft to high-speed head. Install pulley driveshaft on mounting
Mount alternator to starter/alternator mounting bracket on 500 amp test stand. Connect belt from
test stand pulley to alternator pulley. Adjust belt tension.
Connect cable from alternator ground terminal to test stand G- terminal. Connect cable from alter-
nator battery terminal to test stand G+ terminal. Connect cable from alternator regulator IGN to
test stand F terminal.
Connect 28 VDC output and 14 VDC output to test stand. Auxiliary voltage and current meters
may be required to measure 14 VDC output.
Fabricate a jumper wire with a ring terminal at both ends. Connect jumper wire on test stand from
IGNITION SWITCH terminal to F-B terminal.