Oregon 530-120H Original Instruction Manual page 27

520-120 / 530-120H
Turn the cutter adjustment knob (10) to move
the chain so that the cutter cutting edge
skims the grinding wheel The chain should
run freely over the vise (16) throughout this
procedure but without any clearance
Raise the motor unit (A) using handle (E)
Turn the cutter adjustment knob (10)
clockwise, to slightly move the cutter
to be sharpened further forwards
PLACING CHAIN IN VISE
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 cutter sharpening depth adjustment
knob (6) to adjust the cutter sharpening
depth The grinding wheel (M) should skim
the bottom of the cutter vertically
Once you have found the exact position of
the cutter, pull the vise handle (15) to the
right to tighten the vise jaws (16) You are
now ready to begin sharpening your chain
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