Husqvarna K6500 II Operator's Manual page 18

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.
18 – English
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.