RedMax PSZ2500 Owner's/Operator's Manual page 24

9. Maintenance
MA4
MA5
MA6
24
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
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
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 : 5/32 in (4.0mm)
be corrected or
90SG