Scheppach HMS850 - Page 43

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43
Unsatisfactory surface
nish
• Planing blade blunt/worn
• Planing blade lled with chips
• Uneven feed
• Replace or sharpen blade
• Remove chips
• Feed the workpiece with constant pressure and
at reduced speed
Machined surface too
rough
• Workpiece contains too much
moisture
• Dry workpiece
Machined surface
cracked
• Workpiece was machined
against the grain
• Too much material planed at
one pass
• Machine the workpiece from the opposite
direction
• Machine the workpiece in several passes
Workpiece speed too
low during thicknessing
• Workpiece was machined
against the grain
• Too much material planed at
one pass
• Clean bench top and apply a thin coating of
lubricant wax
• Repair transport rollers
When thicknessing,
chip ejection obstructed
(without dust extractor).
• Too much chip removal
• Blunt knives.
• Wood too humid.
• Reduce chip removal.
• Replace knives
• Dry workpiece
When surface planing,
chip ejection obstructed
(without dust extractor)
• Too much chip removal
• Too fast feed
• Blunt knives.
• Wood too humid.
• Reduce chip removal.
• Reduce infeed speed.
• Replace knives.
• Dry workpiece
With surface planing
and thicknessing, chip
ejection obstructed
(with dust extractor).
• Suction performance too
weak.
• Use a dust extractor unit having an airow rate at
the suction connection of at least 20 m/s.
Optional accessories
HSS-planer blades
Two-pieces set
Item number: 3902202701
EAN: 4046664000310
Regular servicing period Before any
start-up
If necessary Once a
week
After 6
months
Check that the planing blade is in perfect
condition
Inspection X
Change X X
Check the function of the safety
equipment
Inspection X
Change X
Clean dust and chips o󰀨 the machine Clean X
Check the drive belt to ensure it has the
correct tension and is in good condition or
not worn
Inspection X
Change
Oil or grease all moving connecting parts X X