TM 9-2320-211-10
a. If your vehicle fails to start because of weak batteries, it may be necessary to use jumper
cables and a slave vehicle. The following procedure should be used.
(1) Position the slave vehicle so that its batteries are directly opposite those of the
disabled vehicle, then stop the engine.
(2) Open the battery compartment doors to expose the batteries.
CAUTION
Be sure to connect the positive post of the disabled vehicle only to the positive post
of the slave vehicle and the negative post of the disabled vehicle only to the
negative post of the slave vehicle. Failure to observe this may burn out the
(3) Attach one end of the positive (red) jumper cable (2) to the positive battery post (1)
of the disabled vehicle. Then attach the other end (7) to the positive battery post (8) of the
slave vehicle.
(4) Attach one end of the negative (black) jumper cable (3) to the negative battery post
(4) of the disabled vehicle and attach the other end (5) to the negative battery post (6) of the
slave vehicle.
(5) Start the engine of the slave vehicle. This will provide sufficient electrical power to
crank the engine of the disabled vehicle.
(6) When disabled truck is running,remove the jumper cables and secure the battery
compartment doors for travel.
CAUTION
Completely remove one jumper cable at a time to prevent contact of the positive
(red) end with the negative (black) end of the cables. Shorting the battery in such a
manner can cause serious damage to the alternator.
TA
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