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DESCRIPTION
WARNING!
NOTE:
These safety precautions are
intended primarily for consumers or
occasional users. When using this
chain saw for logging purposes, refer
to: CFR Section 1910. 266 (5); 2.5.1
of the American National Safety
Standard; Requirements for Pulp-
wood Logging ANSI 03.1-1978; and
any applicable state safety codes.
■ Never operate this chain saw with
one hand! One-handed operation
could cause you to lose control,
causing serious injury to yourself
or others! A chain saw is intended
for two-handed use.
■ Wear safety footwear, snug-fitting
clothing, protective gloves, and
eye, hearing, and head-protection
devices while working with this
chain saw.
■ Do not allow other persons to be
near the chain saw when starting
or running the chain saw. Keep
bystanders and animals out of the
work area.
■ Never allow young children or any
person unfamiliar with chain saws
to operate this saw!
■ Clear the work area before using
the saw. Never start cutting until
you are sure you have a secure
footing and have planned a retreat
path from the falling tree.
■ Before starting the saw engine,
make sure nothing is touching the
saw chain.
■ Keep all parts of your body away
from the saw chain whenever the
engine is running!
■ Stop the engine before carrying
the saw. Carry the saw with the
engine stopped, the guide bar and
saw chain pointing to the rear, and
the engine muffler away from your
body.
■ Never operate this chain saw if
you are fatigued.
■ Stop the engine before setting the
chain saw down.
Additional Safety Precautions
32
MAINTENANCE
CHN-08
Cause
File held at less than
recommended angle.
Result
Slow cutting. Requires extra
effort to cut.
Remedy
File cutters to recommended
angle.
Cause
File held at more than
recommended angle.
Result
Cutting angle is very sharp
but will dull fast. Cutting
action rough and erratic.
Remedy
File cutters to recommended
angle.
Top plate angle
less than
recommended
Top plate angle
more than
recommended
30°
CHN-06
Correct angle on
top plate
Filing Problems
Correct Filing Technique
Slightly protruding hook
or point (curve on non-
chisel chain)
Top of depth
gauge at correct
height below top
plate
Front of depth
gauge rounded
A BA=B
0.020"
CHN-01
Keep all cutter lengths equal
Cause
File held too low or the file
was too small.
Result
Rough cutting. Chain grabs.
Cutters dull quickly or won’t
hold a cutting edge.
Remedy
File cutters at recommended
angle. Check file size.
Cause
File held too high or the file
was too large.
Result
Cutters won’t feed into wood.
Slow cutting. Must force
chain to cut. Causes
excessive bottom wear.
Remedy
File cutters at recommended
angle. Check file size.
Hook in side
plate cutting
edge
Backslope on
side plate
cutting edge
CHN-02
CHN-03
Cause
Wrong gauge setting or no
gauge used.
Result
Rough cutting. Chain grabs.
Saw won’t pull chain through
wood. Excessive wear on the
cutter heel.
Remedy
If depth gauges are too low,
the chain is no longer
serviceable.
Low depth
gauge
Cause
Depth gauge never filed.
Result
Slow cutting. Must force
chain to cut. Will cause
excessive wear on the cutter
heel.
Remedy
Lower gauges to recom-
mended setting.
High depth
gauge
CHN-04
CHN-05
60°
CHN-07
Sharpening the Chain (cont.)