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Make sure every cutter has the same length and edge
angles as illustrated. (F38)
(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.
(F39)
(1) Ruler
(2) Gap
(3) No gap
(4) Chain tilts
This saw is equipped with one of the following low
kickback bar/chain combinations:
Model GZ4000
14" Bar : Oregon 140SPEA041
14" Chain : Oregon Doubleguard 91VG052X
WARNING
F38
F39
11. Maintenance of Saw Chain and Guide Bar
English