■ 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: 25AP, 91VG
File size: 5/32 in (4.0mm)
Place your file on the cutter and push straight
forward. Keep the file position as illustrated.
(F10-1)
After every cutter has been set, check the depth
gauge and file it to the proper level as illustrated.
(F10-2)
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
