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Before making a request for repairs, check for trouble by yourself. For repairs, contact authorized service centers.
Malfunction status
Possible cause
Remedy
Chain does not run.
Chain brake is engaged.
Release chain brake.
Engine does not start.
Spark plug malfunction.
Check the spark plug.
Fuel tank is empty.
Fill the fuel tank.
Fuel supply problem.
Check whether the fuel filter is not clogged.
Tool malfunction.
Ask your local authorized service center for repair.
Insufficient performance.
Air cleaner is dirty.
Clean the air cleaner. Replace it if necessary.
Cylinder space is dirty.
Clean cylinder space.
Environment temperature is very low.
Change the shutter setting of the carburetor. See
section “Prevention from carburetor icing”.
No oil on the saw chain.
Oil tank is empty.
Fill the oil tank.
Oil guide groove is dirty.
Clean the groove.
Oil delivery is not adjusted properly.
Adjust amount of oil delivery.
Oil pump malfunction.
Ask your local authorized service center for repair.
Chain does not stop even the chain
brake is activated.
Brake band worn down.
Stop using the tool immediately, and ask your local
authorized service center for repair.
The tool vibrates abnormally.
Loose guide bar or saw chain.
Adjust the guide bar and saw chain tension.
Tool malfunction.
Stop using the tool immediately, and ask your local
authorized service center for repair.
Chain does not stop when engine is
idle.
Idle speed is too high.
Correct idle speed.
Clutch defect.
Stop using the tool immediately, and ask your local
authorized service center for repair.
TROUBLE SHOOTING