Husqvarna DM650, Operator'S Manual

Page: 11 / 68

English – 11
OPERATING
Basic working techniques
Overload
• In the event of overloading the motor, the load must be reduced so that the motor resumes normal rpm.
• If the drill bit jams, the mechanical slip clutch protects the gearbox before the electronics disconnects the power.
* If the system has shut down due to overheating, the lamps will continue flashing until the system has cooled down and
is ready to be restarted.
NOTICE! Do not repeatedly overload the machine. This can damage the machine. The machine’s load indicator shows
the power output and does not necessarily give the best recommendation for an optimal logging.
Indication on the machine Cause Possible action
1 green lamp:
Indicates the tool is connected to the
power unit and is ready for use.
Power output is less than 70% of
available output when in use.
2 green lamps:
Power output is between 70% and 90%
of available output when in use.
3 green lamps:
Power output is more than 90% of
available output.
3 green lamps and 1 yellow: Maximum power output
3 green lamps, 1 yellow: and 1 red: The system is becoming overheated.
Reduce the load or increase motor
and power unit cooling.
All lamps on or flashing:
The system is overheated and can stop
at any time.*
Power reduction:
Automatic reduction in maximum
available output. Power reduction
attempts to avoid overheating and
automatic shut-down of the system.
Reduce the load or increase motor
and power unit cooling.
Motor cooling can be improved by
increasing the amount of coolant or
using colder water.
Power unit cooling can be improved
by changing air filter or by placing
the power unit in a location with
cooler ambient temperature.