1
Correct Filing Technique
Correct angle on
top plate
Slightly protruding hook or point
(curve on non-chisel chain)
Top of depth
guage at correct
height below top plate
Front of depth
gauge rounded
Keep all cutter lengths equal
A=B
B
0.020”
Filing Problems
Top plate angle
less than
recommended
Cause
File held at less than
recommended angle.
Result
Slow cutting. Requires
extra effort to cut.
Remedy
File cutters to
recommended angle.
20
o
50
o
Top plate angle
more than
recommended
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.
Hook in side
plate cutting
edge
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.
Backslope on
side plate cutting
edge
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.
High 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
recommended
settings.
Low depth gauge
Cause
Wrong gauge setting
or no gauge used.
Result
Rough cutting. Chain
grabs. Saw won’t pull
chain through wood.
Excessive wear on the
cutting heel.
Remedy
If depth gauges are
too low, the chain is no
longer serviceable.
A
Содержание SBA-P24
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