9. Maintenance (EX-PS only)
The bar rail should always be a square. Check for
wear of the bar rail. Apply a ruler to the bar and the
outside of a cutter. If a gap is observed between
them, the rail is normal. Otherwise, the bar rail is
worn. Such a bar needs to be corrected or
replaced.(MA4)
(1)Ruler
(2)Gap
(3)No gap
(4) Chain tilts
■SPROCKET
Check for extensive wear, and replace it when the
teeth are worn over 0.3mm. (MA5)
(1)Sprocket
■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 : 90SG
File size : 5/32 in (4.0mm)
Place your file on the cutter and push straight
forward. Keep the file position as illustrated. (MA6)
WARNING
WARNING
EX-PS
MA4
EX-PS
MA5
EX-PS
MA6
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