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When the engine has started ...
Engine warm-up
Jump-starting the engine (supply battery)
Empty battery
12 V
12 V
Starting battery
Fig. 31: Starting aid with battery jumper cables
34001b710_05.eps
BA 1001/1501/2001 us – Edition 3.3 * 12001b330.fm
Check whether all indicator lights have gone out:
Let the engine warm up
At cold temperatures:
Increase the engine speed slowly
Do not run the engine at full load until it has reached its operating temperature
Once it has started, let the engine warm up at slightly increased idling speed. Run the
engine without load during the warm-up phase (travel lever in neutral position). During the
warm-up phase, check for unusual noise, exhaust color, leaks, malfunctions or damage. In
case of malfunctions, damage or leaks, park and secure the machine, and find out the
cause for the damage and have it repaired.
Safety instructions
• Never jump-start the engine if the battery of the machine is frozen – explosion hazard!
Dispose of a frozen battery!
• The excavator must not touch the jump-starting vehicle when connected with jump
leads – 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
Travel the jump-starting vehicle close enough to the machine so that the jump leads
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 (
Connect the other end of the black cable (
on the engine block or onto the engine block itself. Do not connect it to the negative ter-
minal 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
–
–
) to the
terminal of the starting battery
–
) to a solid metal component fimly screwed
+
terminal) – this prevents sparking near the battery!
Operation
3-19
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