Oregon 310-120 Original Instruction Manual page 19

310-120
This forward movement corresponds to the quantity
of material to be ground from the cutter The more
dull or damaged the cutters, the greater this forward
movement should be For cutters that are not too
dull, simply grind a slight amount of material
It is also important not to grind too much
material in one pass This could result in
"burning" the cutter, reducing its hardness,
and causing excessive burrs
Turn depth adjustment knob (6) to adjust the
cutter sharpening depth The grinding wheel (C)
should skim the bottom of the cutter vertically
Placing the Chain in the Vise
Once you have found the exact position of the cutter,
tighten the vise clamp by depressing the red button
and rotating the vise handle (9) clockwise You
are now ready to begin sharpening your chain
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