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36
Failure removal
Before rectifying a fault on the machine, switch off the machine and pull out the mains plug.
Failures
Machine does not work
or stops suddenly
Machine stops during
planing
Workpiece jams during
thicknessing
Unsatisfactory surface
finish
Machined surface too
rough
Machined surface cracked • Workpiece was machined against the
Workpiece speed too low
during thicknessing
Enable and check all safety equipment after all troubleshooting work.
Causes
• Power cut
• Motor or switch defective
• Check microswitch
• Planing blade blunt/worn
• Overload switch has tripped
• Check microswitch
• Cutting depth too great
• Planing blade blunt/worn
• Planing blade filled with chips
• Uneven feed
• Workpiece contains too much
moisture
grain
• Too much material planed at one pass
• Workpiece was machined against the
grain
• Too much material planed at one pass
Removal
• Check fuse, check overload switch on
machine.
• Have the motor or switch checked by
an electrician.
• Fit the chip extractor hood so that the
microswitch is pressed.
• Replace or sharpen blade
• Switch on the motor again once it has
cooled
• Fit the chip extractor hood or bench
lock so that the microswitch is pressed.
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• Reduce cutting depth and machine
the workpiece in several passes
• 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 bench top and apply a thin
coating of lubricant wax
• Repair transport rollers
• Set the lever for the thicknessing
setting to the top position
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