TM-9-2320-387-24-1
TRUCK, UTILITY: S250 SHELTER CARRIER, 4X4, M1113
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE, VOLUME 1
DECEMBER 1997
CHANGE 1
TM-9-2320-387-24-1 - Page 299 of 1205
TM 9-2320-387-24-l
BATTERY CIRCUIT
KNOWN INFO
BATTERY VOLTAGE
IS NOT CORRECT
POSSIBLE
PROBLEMS
BATTERY OR BATTERIES
CABLES
ALTERNATOR
KNOWN INFO
BATTERIES
OK
POSSIBLE
PROBLEMS
CABLES
KNOWN INFO
BATTERY VOLTAGE NOT
CORRECT
POSSIBLE
PROBLEMS
BATTERIES
ALTERNATOR
DOES
EACH
BATTERY MEASURE
11-13
VOLTS?
T OPTIONS
1. STUICE-R
TEST 69
(Page 2-506)
2. MULTIMETER
REASON
FOR QUESTION
A good battery has 12 volts at
70’F (22°C).
A2
t
r=
CHECK THE VOLTAGE DROP
ACROSS EACH CABLE IN THE
BATTERY BOX (SEE NOTE AT
RIGHT). ARE ALL VOLTAGE
DROPS LESS THAN 0.25 VOLT
MAX?
OPTIONS
1 .STE/lCE-R TEST 69
(Page 2-506)
2. MULTIMETER
REASON
FOR QUESTION
Everything
else checks out OK.
These cables are the only thing in
the battery circuit we haven’t
tested.
A3
1
YOUR BAlTERlES
ARE OVER-
CHARGED OR DISCHARGED.
RUN
THE ALTERNATOR TESTS.
IF NO
FAULTS ARE FOUND, REPLACE
THE DEFECTIVE BAlTERY
OR
BATTERIES.
2-242
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