Owner`s manual
■OTHERS
Check for fuel leakage, loose fastenings and damage to major parts, especially handle joints, guide bar
mountings and chain brake. If any defects are found, make sure they are repaired before operating the
chainsaw. Check guide bar and saw chain for excessive wear or damage, and replace as necessary. Never fit a
new chain on a worn sprocket, or a worn chain on a new sprocket.
■ PERIODICAL SERVICE POINTS
■
CYLINDER FINS
Chainsaw dust clogging between the cylinder fins will cause overheating of the engine.
Periodically check and clean the cylinder fins after removing the cylinder cover.
When installing the cylinder cover, make sure that switch wires and grommets are fitted correctly.
■ FUEL FILTER
Using a wire hook, take the fuel filter from the fuel tank and clean or replace with new fuel filter.
■ SPARK PLUG
Reset the gap to 0.65 mm, or replace the spark plug with
NGK: BPRM7A as necessary.
■ SPROCKET
Check for cracks and for excessive wear interfering with the chain drive. If the wear is
considerable, replace sprocket and saw chain. Never fit a new chain on a worn sprocket,
or a worn chain on a new sprocket.
■ ADJUSTING SAW CHAIN LUBRICATION FLOW RATE
Never fill the oil tank or adjust the saw chain oiler with the engine running.
An increase in the oil flow rate will increase oil consumption, requiring more frequent checks of the oil tank. To
ensure sufficient lubrication, it may be necessary to check the oil level more frequently than at fuel tank refills.
The guide bar and saw chain are lubricated automatically by a pump that operates whenever the saw chain
rotates. The pump is set at the factory to deliver a minimum flow rate, but it can be adjusted in the to deliver
more oil. A temporary increase in oil flow is recommended when cutting hardwood.
■ OIL PUMP ADJUSTMENT
• Stop the engine and make sure the ignition switch is in the OFF
position.
• Place the chainsaw on its side.
• With a screwdriver, adjust the oil flow rate adjusting screw and turn in
the required direction.
• Clockwise-decrease lubrication
• Counter clockwise-increase lubrication.