Maintenance Of Saw Chain And Guide Bar - RedMax G621AVS Owner's/Operator's Manual

10. Maintenance of Saw Chain and Guide Bar

F34
F35
20 
■ 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. (F34)
Make sure every cutter has the same length and
edge angles as illustrated. (F35)
(1) Cutter length
(2) Filing angle
(3) Side plate angle
(4) Top plate cutting angle
72V
7/32 in (5.5mm)