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9. Maintenance
MA12
MA13
22
7. Saw Chain
WARNING
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:
WARNING
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:
File size:
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)
WARNING
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
91VG
5/32 in (4.0mm)
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