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11. Maintenance of Saw Chain and Guide Bar English
F11-1 ■SAW CHAIN
It is very important for smooth and safe operation
to keep the cutters always sharp.
Your cutters need to be sharpened when:
•Sawdust becomes powder-like.
•You need extra force to saw in.
•The cut way does not go straight.
•Vibration increases.
•Fuel consumption increases.
Cutter setting standards:
Be sure to wear safety gloves.
Before filing:
•Make sure the saw chain is held securely.
•Make sure the engine is stopped.
•Use a round file of proper size for your chain.
Chain type: 72V
File size: 7/32 in.(5.5mm)
Place your file on the cutter and push straight forward.
Keep the file position as illustrated. (F11-1)
Make sure every cutter has the same length and edge
angles as illustrated. (F11-2)
(1) Cutter length
(2) Filing angle
(3) Side plate angle
(4) Top plate cutting angle
WARNING
WARNING