Group 23 EMS 2 Repair instructions
30
Starting with auxiliary
batteries
WARNING! Ventilate well. Batteries can gener-
ate oxy-hydrogen, which is very flammable and
highly explosive. A short circuit, open flame or
spark could cause a violent explosion.
WARNING! Never mix up the battery cables po-
sitions on the battery. Mixing up the battery ter-
minals when applying starting assistance can
cause a short circuit and sparks, which could
cause an explosion and also damage the en-
gine’s electrical components.
1. Check that the auxiliary battery’s voltage is the
same as the engine’s system voltage.
2. First connect the red (+) jump lead to the dis-
charged battery’s positive terminal (+) and then
to the auxiliary battery’s positive terminal (+).
3. Then connect the black (-) jump lead to the auxil-
iary battery’s negative terminal (-) and to a suit-
able ground somewhere away from the dis-
charged battery’s negative terminal (-) e.g. to
the negative cable on the starter motor.
WARNING! The black (-) jump lead must under
no circumstances come in contact with the
positive cable connection on the starter motor.
4. Start the engine and run at high idle for about 10
minutes to charge the batteries.
WARNING! Working with, or going close to a
running engine is a safety risk.
Watch out for rotating components and hot sur-
faces.
Do not touch the connections during the starting
attempt.
Sparking hazard.
Do not lean over any of the batteries.
5. Turn off engine.
Remove the jump leads in reverse order to
installation. One lead at a time!

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