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11. Maintenance of Saw Chain and Guide Bar
Make sure every cutter has the same length and edge angles as illustrated.
(4)Cutter length
(5)Filing angle
(6)Side plate 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.
(1)Ruler
(2)Gap
(3)No gap
(4)Chain tilts
WARNING
This saw is equipped with one of the following low kickback bar/chain combinations:
Model GZ400
18" Bar :
18" Chain :
54
