BA 901/1101 en – Edition 2.1 * 91101b320.fm 3-19
Operation
Jump-starting the engine (supply battery)
Safety instructions
• Never jump-start the engine if the battery of the machine is frozen – explosion hazard!
☞ Dispose of a frozen battery!
• The loader must not touch the jump-starting vehicle when connected with battery
jumper cables – sparking hazard!
• The external power source must deliver 12 V; higher supply voltages will damage the
electrical system of the vehicles!
• Use only authorized battery jumper cables which conform to the safety requirements
and which are in perfect condition!
• The jump lead connected to the positive + terminal of the starting battery must never be
brought into connection with electrically conductive vehicle parts – risk of short circuit!
• Route the battery jumper cables so they cannot catch on rotating components in the
engine compartment!
Procedure
☞ Drive the jump-starting vehicle close enough to the loader so that the battery jumper
cables can reach to connect the two batteries
☞ Let the engine of the jump-starting vehicle run
☞ First connect one end of the red jump lead (+) to the + terminal of the empty battery,
then connect the other end to the + terminal of the starting battery
☞ Connect one end of the black jump lead (–) to the – terminal of the starting battery
☞ Connect the other end of the black cable (–) to a solid metal component fimly screwed
on the engine block or onto the engine block itself. Do not connect it to the negative
terminal of the empty battery, as otherwise explosive gas emerging from the battery
can ignite if sparks are formed!
☞ Start the engine of the machine with the empty battery
Once the engine has started:
With the engine running, disconnect both jump leads in exactly the reverse order (first
remove the
– terminal, then the + terminal) – this prevents sparking near the battery!
Fig. 51:
Fig. 52:
Fig. 53: Starting aid with battery jumper cables
Empty battery
Starting
battery
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