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 189 of 1205
TM
9-2320-387-24-l
REFERENCE INFORMATION
FUEL SYSTEM
0
II
. .
WARNING
Keep hands away from engine
fan. Moving
fan blades
can
cause serious
injury.
Use
extreme
caution when engine
is running.
0
II
. .
WARNING
Disconnect
negative
battery
cable before
disconnecting
and reconnecting
protective
control box harness.
WARNING
There is battery voltage at the PCB at all
times.
Failure
to disconnect
battery
cable
will result in damage to equipment
or injury
to personnel.
Rotary switch must remain in
STOP position for the rest of
these tests.
REAR OF ROTARY SWfTCH
NOTE
Carefully inspect the body connector end of
the harness for a short.
Check for pushed
out pins, broken or stripped insulation, or any
other bare wires.
If everything
checks out
OK, you have to replace the harness.
Remember to reconnect any wires that may
have been disconneded
during
troubleshooting.
Repair harness (para. 4-80).
DC VOLTAGE O-45 VOLTS
STEIICE-R TEST 89
1. Connect RED clip to positive, BLACK clip to
negative or ground.
2. Start Test 89. DC Volts.
3. Displayed
reading is in volts.
DC VOLTAGE
MULTIMETER
1. Set the voltmeter to a DC volts scale of at least
40 volts.
2. Connect the RED lead to positive and the
BLACK lead to negative.
3. Be sure to read the correct scale.
INJECTfCN
PUMP
Replace rotary switch (para. 4-10).
2-l 29
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