Husqvarna K 6500 II Ring Operator's Manual page 17

Gradual start and overload protection
The machine is equipped with electronically controlled gradual start and overload protection.
Indication on the machine
1 green lamp:
2 green lamps:
3 green lamps:
3 green lamps and 1 yellow:
3 green lamps, 1 yellow: and 1
red:
All lamps on or flashing:
* 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.
The electronics cut the current immediately if the blade jams.
Managing dust
Water cooling must always be used. Dry cutting causes immediate overheating and machine and cutting blade failure
with a risk of personal injury.
Adjust water flow using the tap to bind the cutting dust. The volume of water required varies depending on the type of
job at hand.
If water hoses loosen from their supply sources, this indicates that the machine is connected to a water pressure that is
too high. See instructions under the "Technical data" heading for recommended water pressure.
OPERATING
Cause
Indicates the tool is connected to the
power unit and is ready for use.
Power output is less than 70% of the
maximum available output when in use.
Power output is between 70% and 90% of
the maximum available output when in
use.
Optimum cutting speed.
Power output is more than 90% of the
maximum available output.
Tool under load so power output drops.
The system is becoming overheated.
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.
Possible action
Reduce the load to attain optimum
cutting speed.
Reduce the load or increase motor and
power unit cooling.
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.
English – 17