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17 Repairing
WARNING
The cutting edges of the blade are sharp. This may result in 
the user cutting themselves.
► Wear work gloves made from resistant material.
► Stop the engine.
► Detach the spark plug socket.
► Upend the lawn mower.
► Remove the blade.
► Sharpen the blade. Observe the sharpening angle and 
cool the blade, @ 19.2.
Bluing of the blade during sharpening is not permitted.
► Attach the blade.
► If anything is unclear: consult a STIHL specialist dealer.
17.1 Repairing the Lawn Mower
The user should not repair the lawn mower or blade 
themselves.
► If the lawn mower or blade is damaged: do not use the 
lawn mower or blade and consult a STIHL specialist 
dealer.
► If warning signs are illegible or damaged: have the 
warning signs replaced by a STIHL specialist dealer.
17 Repairing