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Finding the causes of any troubles turned up and their remedy always demands extra attention and caution. Before starting
trouble-shooting, always pull the power supply plug.
In the following, some of the most frequent defects and their causes are listed. In case of any further defects, please call
your dealer.
Problem
Machine cannot be switched on.
Machine switches automatically off
during idle run.
Machine stops during planing.
Response of the overload protection.
Planed surface not smooth.
When thicknessing, chip ejection
obstructed (without dust extractor).
When surface planing, chip ejection
obstructed (without dust extractor)
With surface planing and thicknessing,
chip ejection obstructed (with dust
extractor).
Rpm drops during planing.
Possible Cause
No power supply. Carbon brush worn.
No mains supply.
Overload protection reacts due to blunt
knives, infeed too fast, or chip removal
too thick.
Too much chip removal Too fast feed
Blunt knives
Infeed too fast. Blunt knives. Irregular
feed.
Chip removal too important. Blunt
knives. Wood too humid.
Chip removal too important. Infeed to
fast. Blunt knives. Wood too humid.
Suction performance too weak.
Chip removal too important.
Remedy
Check power supply. Take machine to
your service point.
Check fuses. Due to the integrated low-
voltage protection, the machine does
not restart automatically. Upon return
of the voltage, the machine must be
switched on again.
Before work is continued, replace
knives or let cool down the motor.
Before continuing work, replace the
knives or wait for the motor to cool
down.
Reduce infeed speed. Replace knives.
Apply constand pressure and reduce
feed.
Reduce chip removal. Replace knives.
Reduce chip removal. Replace knives.
Use a dust extractor unit having an air-
flow rate at the suction connection of at
least 20 m/s.
Reduce chip removal.
international 29
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