Mac allister 3902202967, Оригинальное руководство пользователя

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MPTP1500B MAC
39
Trouble shooting
Trouble shooting
Finding the causes of any troubles turned up and their remedy always de-
mands 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 Possible Cause Remedy
Machine cannot be switched on. No power supply.
Carbon brush worn. Check power supply.
Take machine to your service point.
Machine switches automatically off
during idle run. No mains supply. Check fuses.
Due to the integrated low-voltage protection, the
machine does not re-start automatically. Upon return
of the voltage, the machine must be switched on
again.
Machine stops during planing. Overload protection
reacts due to blunt knives,
infeed too fast, or chip
removal too thick. Before work is continued, replace knives or let cool
down the motor.
Response of the overload protection. Too much chip removal
Too fast feed
Blunt knives
Before continuing work, replace the knives or wait
for the motor to cool down.
Planed surface not smooth. Infeed too fast.
Blunt knives.
Irregular feed. Reduce infeed speed.
Replace knives.
Apply constand pressure and reduce feed.
When thicknessing, chip ejection
obstructed (without dust extractor). Chip removal too
important.
Blunt knives.
Wood too humid. Reduce chip removal.
Replace knives.
When surface planing, chip ejection
obstructed (without dust extractor) Chip removal too
important.
Infeed to fast.
Blunt knives.
Wood too humid. Reduce chip removal.
Replace knives.
With surface planing and
thicknessing, chip ejection obstructed
(with dust extractor). Suction performance too
weak. Use a dust extractor unit having an air-flow rate at
the suction connection of at least 20 m/s.
Rpm drops during planing. Chip removal too
important. Reduce chip removal.