Maintenance of Saw Chain and Guide Bar
Saw Chain
It is important for smooth and safe operation to keep the cutters sharp.
Your cutters will need to be sharpened when:
•
Sawdust becomes powder-like
•
You need extra force to saw into wood
•
The cut way does not go straight
•
Vibration increases
•
Fuel consumption increases
When the cutters are blunt, you should either take the unit to a garden tool centre for professional
sharpening, or you should invest in a chain sharpener and follow the instructions of the unit.
Guide Bar
•
Reverse the bar occasionally to prevent partial wear.
•
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 rail is worn. Such a bar needs to be corrected or replaced.
(1) Ruler
(2) Gap
(3) No Gap
(4) Chain Tilts
Troubleshooting
Problem One: Unit will not start
Check fuel for water, or substandard mixture.
Replace with proper fuel.
Check for engine flooding.
Remove and dry the spark-plug. Then pull the
starter again with no choke.
Check spark ignition.
Replace with new spark-plug.
Problem Two: Lack of power / Poor Acceleration / Rough Idling
Check fuel for water, or substandard mixture.
Replace with proper fuel.
Check air filter and fuel filter for clogging.
Clean filters.
Check carburettor for inadequate adjustment.
Readjust speed needles.
Problem Three: Oil does not come out.
Check oil for substandard quality.
Replace oil.
Check oil passage and ports for clogging.
Clean oil system.
If these solutions do not work, or your issue is not covered here, please contact the Kogan customer
support team for information.
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Summary of Contents for CTCHNSAW25A
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