A
chain saw sharpening guide
So
let's have a look at the chainsaw sharpening process
with the the Oregon bench mount grinder.
The sharpness and durability of your chain depends most
importantly on two factors. The angle applied to
grind the tip of the chain and the shape of front
of the chain tooth. Whilst the sharpening angle of
your chainsaw can be easily adjusted on the clamping
device of the Oregon
chain saw sharpener, the shape
of the chain tooth is determined by the thickness
and  shape
of the grinding wheel used. Therefore, whenever you
do any chainsaw sharpening with the Oregon grinder,
make sure you have correctly adjusted the cutting
angle and selected the right grinding wheel for your
chain.
Chainsaw
Sharpening with the Oregon chain saw sharpener
 Even
called bench mount grinder, the oregon grinder has
not much in common with a standard
bench grinder from your workshop. The sharpening process with the Oregon
grinder is pretty straight forward. First, the chain
is clamped in between two metal bar. These bars can
be moved to different angles, adjusting the exact sharpening
angle for the chain used. Details on which angle should
be applied can usually be found on the box of the chain
or the instructions manual of your chain saw.
A little
eccentric lever holds the chain firmly.
Now
put your safety glasses on. The machine is switched
on and moved downwards with the grinding wheel sharpening
the front of the chainsaw tooth. The movement is similar
to cutting with a mitre saw. Additional adjustment screws
allow fine tuning the depth of the grinding and how much
of the tooth front should be grinded.
Having
sharpened the first tooth, the machine is moved up to
its starting position. Now, the clamping lever is loosened
and the chain moved to the next tooth. A little flipping
pin guides the chain perfectly.
  As
the teeth of a chain are angled in opposite directions,
first sharpen all left angled teeth then swivel the
clamping device to the opposite position and sharpen
all right angled teeth.
Make
sure that during the sharpening, the grinding wheel
does not burn the top of the chain's teeth. This could
influence the hardness of the chain and reduce the
durability of the sharpness.
One
final advice for those of you who do a lot of sharpening.
Oregon offers a pneumatic clamping device which allows
to clamp the chain automatically without using the
lever. It is available as an accessory and makes
the entire process sharpener even
easier.
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