Trouble Shooting - Scheppach HMS850 Traducción Del Manual De Instrucciones Original

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15. Trouble Shooting

Problem
Possible Cause
Machine cannot be
No power supply.
switched on.
Carbon brush worn.
Chip extractor not mounted
Machine does not work
Power cut
or stops suddenly
Motor or switch defective
Check microswitch
Machine stops during
Planing blade blunt/worn
planing.
Overload switch has tripped
Check microswitch
Too much chip removal
Too fast feed
Workpiece jams during
Cutting depth too great
thicknessing
Speed decreases when
Too much chip removal
planing
Too fast feed
Blunt knives.
Unsatisfactory surface
Planing blade blunt/worn
finish
Planing blade filled with chips
Uneven feed
Machined surface too
Workpiece contains too much
rough
moisture
Machined surface
Workpiece was machined against
cracked
the grain
Too much material planed at one
pass
Workpiece speed too
Workpiece was machined against
low during thicknessing
the grain
Too much material planed at one
pass
When thicknessing,
Too much chip removal
chip ejection obstructed
Blunt knives.
(without dust extractor).
Wood too humid.
When surface planing,
Too much chip removal
chip ejection obstructed
Too fast feed
(without dust extractor)
Blunt knives.
Wood too humid.
With surface planing
Suction performance too weak.
and thicknessing, chip
ejection obstructed (with
dust extractor).
Optional accessories
 www.scheppach.com /  service@scheppach.com /  +(49)-08223-4002-99 /  +(49)-08223-4002-58
Remedy
Check power supply.
Take machine to your service point.
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.
Check fuses.
Due to the integrated lowvoltage protection, the ma-
chine does not restart automatically. Upon return of
the voltage, the machine must be switched on again.
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.
Reduce chip removal.
Reduce infeed speed.
Reduce cutting depth and machine the workpiece in
several passes
Reduce chip removal.
Reduce infeed speed.
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 bench top and apply a thin coating of lubricant
wax
Repair transport rollers
Set the lever for the thicknessing setting to the top
position
Reduce chip removal.
Replace knives
Dry workpiece
Reduce chip removal.
Reduce infeed speed.
Replace knives.
Dry workpiece
Use a dust extractor unit having an airflow rate at the
suction connection of at least 20 m/s.
HSS-planer blades
Two-pieces set
Item number: 3902202701
EAN: 4046664000310
GB | 35

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