4.2 Starting the engine with jump leads
NOTICE!
A wrong connection will cause severe damage
in the electric system.
–
Bridge the machine only with a 12 Volt auxiliary
battery.
1.
Connect the plus pole of the external battery first with the
plus pole of the vehicle battery using the first jump lead.
2.
Then connect the second battery cable first to the minus pole
of the current supplying auxiliary battery and then to engine
or chassis ground, as far away from the battery as possible.
3.
Start the engine.
NOTICE!
Danger of damage to the electronic system!
If no powerful consuming device is switched on,
voltage peaks may occur when separating the con-
necting cables between the batteries, which could
damage electrical components.
4.
Once the engine is running switch on a powerful consumer
(working light, etc.).
5.
After starting disconnect the negative poles first and the posi-
tive poles after.
6.
Switch off the consumer.
Fig. 69
Electric systems – Starting the engine with jump leads
BW 900-50
82
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