Trouble Shooting - Scheppach PLM1800 Original Bedienungsanleitung

17. Trouble shooting

Problem
Machine cannot be
switched on.
Machine does not work or
stops suddenly.
Machine stops during
planing.
Workpiece jams during
thicknessing.
Speed decreases when
planing.
Unsatisfactory surface
finish.
Machined surface too
rough.
Machined surface
cracked.
Workpiece speed too low
during thicknessing.
When thicknessing, chip
ejection obstructed (with-
out dust extractor).
With surface planing and
thicknessing, chip ejection
obstructed (with dust
extractor).
36 | GB
Possible Cause
• No power supply.
• Carbon brush worn.
• Power cut.
• Motor or switch defective.
• Planing blade blunt/worn.
• Overload switch has tripped.
• Too much chip removal.
• Cutting depth too great.
• Too much chip removal
• Blunt knives.
• Planing blade blunt/worn.
• Planing blade filled with chips.
• Uneven feed.
• Workpiece contains too much
moisture.
• Workpiece was machined
against the grain.
• Too much material planed at
one pass.
• Thicknesser table resinous
• Feed roller too slippery
• Too much chip removal.
• Blunt knives.
• Wood too humid.
• Suction performance too
weak.
www.scheppach.com
Remedy
• Check power supply.
• Take machine to your service point.
• Power cut.
• Motor or switch defective.
• Replace or sharpen blade.
• Switch on the motor again once it has cooled.
• Reduce chip removal.
• Reduce cutting depth and machine the work-
piece in several passes.
• Reduce chip removal.
• Replace knives.
• Replace or sharpen blade.
• Remove chips.
• Feed the workpiece with constant pressure
and at reduced speed.
• Dry workpiece.
• Machine the workpiece from the opposite
direction.
• Machine the workpiece in several passes.
• Clean and apply glide wax
• Gently scour with sand paper
• Reduce chip removal.
• Replace knives.
• Dry workpiece.
• Use a dust extractor unit having an airflow rate
at the suction connection of at least 20 m/s.