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10. Maintenance of Saw Chain and Guide Bar Make sure every cutter has the same length and
edge angles as illustrated. (F10-3)
(4) Cutter length
(5) Filing angle
(6) Side plate angle
(7) Top plate cutting angle
■GUIDE BAR
•Reverse the bar occasionally to prevent partial
wear.
•The bar rail should always be a square. Check
for wear of the bar rail. Apply a ruler to the bar
and the outside of a cutter. If a gap is observed
between them, the rail is normal. Otherwise, the
bar rail is worn. Such a bar needs to be
corrected or replaced. (F10-4)
(1) Ruler
(2) Gap
(3) No gap
(4) Chain tilts
F10-3
F10-4