TM 5-1940-277-34
ALTERNATOR REPAIR INSTRUCTIONS
(Continued)
LOCATION
ITEM
ACTION
REMARKS
CAUTION
Do not remove any connections while alternator is running. Diodes will be damaged.
NOTE
The following steps apply to Test Stand, Automotive Generator, Alternator and Starter. Refer to
TM 9-4910-458-12 for test stand diagrams and instructions.
19.
Test stand
a.
Alternator
Mount alternator
Make certain that
on the generator
drive belt is
and starter
over alternator
mounting bracket
pulley and drive
and secure with
and alternator
chain vise.
pulley are
alined.
b.
Control panel
Base settings for
settings
test stand are as
follows:
Upper Portion of Test Stand
External master power switch. ................................................Off
Main power switch . ................................................................Off
DC load ammeter . .................................................................500 amperes
DC field ammeter. ..................................................................30 amperes
Millivolt meter ........................................................................9 volts and off
DC voltmeter . ........................................................................50 volts and RECT/GEN
Tachometer. ...........................................................................Direct drive
AC ammeter...........................................................................500 amperes and phase A
AC voltmeter ..........................................................................50 volts and off
400-ampere control box..........................................................Voltage adjust fully counter-
clockwise
Equalizer coil test . .................................................................Off
Ignition switch ........................................................................Off
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