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9. Maintenance
7. 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: 91VG
File size: 5/32 in (4.0mm)
Place your file on the cutter and push straight
forward. Keep the file position as illustrated.
(MA12)
After every cutter has been set, check the depth
gauge and file it to the proper level as illustrated.
(MA13)
Be sure to round off the front edge to reduce
the chance of kickback or tie-strap breakage.
(1) Appropriate gauge checker
(2) Make the shoulder round
(3) Depth gauge standard
WARNING
WARNING
WARNING
MA13
MA12