Full Product Manual

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17
Rounded hooded chain saws:
These type of chain saws require
Round Chain saw files specifically
designed for the task. These files
are available in various diameters
to fit a sizes of Round Hooded
chain saws. Place the file against
the beveled cutting surface of the
teeth that face both sides and
provide their own clearance at an
angle of 20∞ to 45∞ with the saw
blade, depending on manufacturers
specifications. The direction of the
filing stroke is off the cutting edge.
It is essential that the file be held
level and it should be pressed
back and slightly up during the
filing stroke. Every other tooth is
filed, and then the chain saw is
reversed. The depth gauges of this
type of saw control the depth of the
cut that the saw will take. As the
cutting teeth are sharpened, they
become lower, and it is necessary
to lower the depth gauges an equal
extent. The difference in height
between cutting teeth and depth
gauge should be between 020"/
5mm and 030"/ 75mm.
File the depth gauge only as
required to maintain dimensions
between cutter and gauge as cutter
is filed back. Do not file off too
much. This overloads motor and
chain and the chain will clog. Use
a depth gauge, chainsaw file, or a
mill file.
Before removing the saw blades
from saw, lower the blade until only
1/64" (4mm) protrudes above the
table. Place a file over the opening
in the table and by hand, revolve
the saw backward against the file.
Be sure that the file touches each
tooth top. Remove the saw blade
and sharpen, using the following:
6"/ 150mm and 7"/175mm saws
Filing chain saw teeth
Sharpening circular saws
use 6"/150mm Cantsaw file.
8"/200mm and 9"/225mm saws use
8"/200mm Cantsaw file.
10"/250mm and up use 10"/250mm
Cantsaw file.
Some large size circular saws may
be sharpened without removing
them from the saw as long as
there is no chatter. Large circular
saws with insert type teeth are
sharpened with a Mill file. The
larger the saw, the larger the file.
The teeth of the crosscut saws cut
with their edges and points: edges
must be beveled and sharp. Start
at the point of the saw and work
towards the handle. Place the file
in the gullet to the left of the first
tooth set away from you. Hold the
file level with the angle of the saw
blade. At this angle, it should touch
on the bevels of both teeth. When
filing the flattened teeth, only half
should be filed away at a time.
Miss the next gullet and file the one
following until every other gullet
has been filed.
Reverse the saw and begin
process from second gullet away
from saw point.
Filing hand ripsaws
For pointing and filing, follow the
same procedure as the Crosscut
saw. It must be remembered that
the Rip saw is filed so that the
tooth points do the cutting, not
the edges. Teeth should be filed
at right angles to the blade. Every
other tooth is brought to a square
edge, the saw is reversed and the
remaining teeth filed.
The Crosscut saw has two types
of teeth, cutters and rakers. The
cutters do the cutting, the
Filing the hand crosscut saw
Sharpening crosscut saws