Owner`s manual

• Grease the nose sprocket with a sprocket grease gun (Oregon part number 21939)

1. Guide bar grove (A-1)

2. Oil hole (A-2)

3. Drive sprocket (B-3)

4. Grease point (B-4)

■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

chain saw. 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.

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■ PERIODICAL SERVICE POINTS

■

CYLINDER FINS

• Chain saw 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 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 chain saw on a flat surface.

• Adjust the oil flow rate adjusting screw on the top cover of the

machine by turning in the required direction.

• Clockwise decrease lubrication

• Counter clockwise increase lubrication.

Please note, the adjuster only moves ¼ off a turn.

0.65mm