Saw Chain Performance - Shindaiwa 488EMC Owner's/Operator's Manual

Saw Chain Performance

Your saw's performance on the job
depends heavily on the condition of
its saw chain.
How the Saw Chain Works
As the saw chain is pulled through
the wood:
1. The depth gauge setting deter-
mines the depth of cut for each
cutter.
2. The cutter's leading edge enters
the wood, causing the entire cutter
to "rock back" and lift away from
the bar.
3. The top plate peels the severed
wood chip away.
4. The chip is discharged out the rear
of the cutter.
3
1 2
IMPORTANT!
Most of the actual cutting is done by the
sides and corners of the individual
cutters!
18
Sharpening Technique
File all cutters to the same angle and
depth! Unequal filing may cause the saw
to vibrate or cut erratically!
For consistent filing angles, use a filing
guide.
1. Using the appropriate round file,
sharpen all cutters to a 25
as shown.
2. After all cutters are sharpened,
use a depth gauge joiner to mea-
sure the height of each depth
gauge.
3. As required, use a flat file to lower
depth gauges to the appropriate
.025" (0.635 mm) height.
4. After all depth gauges have been
adjusted, use a flat file to round
each depth gauge leading edge to
original curvature and angle.
4
Using a Depth gauge joiner
Using a Flat File to Round the Front Corner
IMPORTANT!
NOTE:
o
angle
o
25
Use a Filing Gauge
on a Depth Gauge