Hoffmann MORSO NFXL, Руководство по эксплуатации

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Instruction Manual
MORSØ Notch Cutting Machine
Model NFX
Grinding of Knives
When grinding the knives you must only grind on the reverse of the cutting edge. You must
under no circumstances grind on the front or ends of the knives, because the knives will
then be useless. The angle of the cutting edge compared to the front of the knife must be
28°.
Hollow grinding (essential), figure I.
Using a grinding wheel the diameter must be between 200 - 300 mm. Using a cup wheel the
diameter must be 150 mm.
Surface grinding figure II
Honing figure III
To set the cutting edge, use a soft fine-grained silicon carbide hand flat stone that must be
kept in oil or kerosene.
When setting the cutting edge you must under
no circumstances sharpen the cutting edge
lengthwise, always crosswise.
First sharpen on the reverse side of the knife. The flat stone is to be kept in an angle of 29°
compared to the front of the knife.
Take off burrs , figure IV
After the honing the burrs on the front of the knife will be removed with a slate flat stone
which must be straight.
The flat stone must be completely in line with the knife, otherwise the outer cutting edge will
get an incorrect angle.
Even the slightest error here will cause the knife to press too hard against the wood during
the cutting.
Please also see page H-4: Regulation of Draw Bar
Service H-3