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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
F11-2