Volvo EC15E, Operator'S Manual

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9 Finally disconnect the jump lead between the (+)
terminals.
10 Re-install the battery pole stud protections.
Warming up
NOTICE
Do not turn the ignition key while the engine is
running, as this will generate a surge voltage that
may damage the electrical system.
1 Start the engine.
2 After a longer period of standstill and particularly
at temperatures around or below the freezing
point the excavator must be warmed up by
running the engine at medium speed.
3 Run the excavator warm for about 5 to 10
minutes at approx. 50% engine speed. During
this period frequently operate the levers for the
working hydraulics, whenever possible.
Operating instructions
Starting engine 77