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Table 2-3. Electrical Troubleshooting (Contd) - TM-9-2320-272-24-10211
ALTERNATOR OUTPUT VOLTAGE LOW
TM-9-2320-272-24-1 Truck 5-Ton 6x6 M939 M939A1 M939A2 Series Trucks (Diesel) Manual
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TM
9-2320-272-24-1
Table
2-3.
Electrical
Troubleshooting
(Contd).
MALFUNCTION
TEST
OR
INSPECTION
CORRECTlVE
ACTION
Step
6.
Set
multimeter
to
RX1
for
continuity
reading.
Step
7.
Disconnect
battery
ground
cable
(para.
3-126).
Step
8.
Connect
multimeter
positive
lead
to
lead
568
and
negative
lead
to
lead
5 of
alternator
terminal.
Step
9.
Multimeter
should indicate
continuity
.
If
continuity
is
not
indicated,
there
is an
open
lead.
Repair
broken
lead
568
(para.
3-131).
END
OF
TESTING!
2-122