TM 5-1940-277-34
ALTERNATOR REPAIR INSTRUCTIONS
(Continued)
LOCATION
ITEM
ACTION
REMARKS
i.
Turn field
current rheo-
stat slightly
clockwise to
maintain 28V
on DC volt-
meter.
j.
If load
ammeter does
not read 25.5A
turn variable
load rheostat
until rated
current output
is obtained.
k.
Check the DC
field ammeter.
Should read
20A.
NOTE
Record all meter readings.
l.
Turn field
current rheo-
stat fully
counterclock-
wise.
m.
Turn master
load switch OFF.
n.
Turn battery
switch OFF.
o.
Reduce vari-
drive speed to
1000 RPM.
2-90
