| |
TM 10-3930-643-20
ELECTRICAL SYSTEM TROUBLESHOOTING AND MAINTENANCE. (cont)
5-9.
Alternator and Alternator Connections. (Sheet 8 of 9)
TESTING (cont)
53.
54.
55.
56.
57.
58.
59.
60.
61.
62.
Using a 1/2 open
disconnect battery
cable (51) on left
refer to paragraph
end
wrench,
negative ground
side of vehicle,
5-47.
Test alternator (47) on left side of
engine.
On alternator (47) connect
on multimeter to positive
and black lead to ignition
Connect battery negative
cable (51) on left side of
refer to paragraph 5-47.
Connect carbon pile across
( 5 2 ).
NOTE
red lead
terminal
terminal.
ground
v e h i c l e,
b a t t e r i es
All accessories should be on for
steps 57 and 58 to increase
load
on batteries.
Start engine in operators compart-
ment,
Allow engine speed to reach
1500 rpm.
On alternator (47) on left side of
engine,
observe
multimeter.
Satisfactory range is between 25 and
50 amperes.
Replace if test results are not in
satisfactory range.
Stop engine in operators compart-
ment.
Disconnect battery negative ground
cable (51) on left side of vehicle,
refer to paragraph 5-47.
Go to sheet 9
5-84
|