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18 Troubleshooting
18 Troubleshooting
18.1 Troubleshooting Chainsaw
Most malfunctions have the same causes.
► Perform the following operations:
► Clean the air filter.
► Clean or replace the spark plug.
► Perform 5 uniform bucking cuts at full throttle.
The engine adjusts itself automatically to ambient conditions.
► If the malfunction still exists: Take the action described in the following table.
Condition
Engine does not start.
Poor acceleration
Saw chain does not rotate
when throttle is opened.
Smoke or burning smell
while cutting.
0458-809-0121-A
Cause
Insufficient fuel in the tank. ► Mix fuel and refuel the chainsaw.
Engine is flooded.
The chain is over-
tensioned.
Chain lubrication system
is supplying insufficient
chain oil.
The chain brake is
engaged.
The chain is over-
tensioned.
Bar nose sprocket is
blocked.
Chain is not properly
sharpened.
Insufficient chain oil in the
tank.
Chain lubrication system
is supplying insufficient
chain oil.
The chain is over-
tensioned.
Chainsaw is not being
used properly.
Remedy
► Clear the combustion chamber.
► Tension chain properly.
► Increase oil feed rate.
► Disengage the chain brake.
► Tension chain properly.
► Clean the bar nose sprocket with STIHL resin solvent.
► Sharpen the chain properly.
► Fill up with chain oil.
► Increase oil feed rate.
► Tension chain properly.
► Have correct use explained, then practice.
English
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