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– The lawn mower is clean and dry.
– The controls are working and have not been modified.
– The blade is correctly attached.
– Only genuine STIHL accessories for this lawn mower are
attached.
– The accessories are correctly attached.
WARNING
■ If not in safe condition, components may no longer
operate correctly and safety devices may be disabled.
This may result in serious or fatal injury to people.
► Use an undamaged lawn mower.
► If the lawn mower is dirty or wet: clean the lawn mower
and allow it to dry.
► Do not modify the lawn mower.
► If the controls are not working: do not use the lawn
mower.
► Only attach genuine STIHL accessories for this lawn
mower.
► Attach the blade as described in this instruction manual.
► Attach accessories as described in this instruction
manual or in the instruction manual for the accessories.
► Do not insert objects into the apertures in the lawn
mower.
► Never connect the key receptacle terminals to metallic
objects and cause a short circuit.
► Replace worn or damaged warning signs.
► If anything is unclear: consult a STIHL specialist dealer.
4.6.2
Blade
The blade is in safe condition when the following conditions
are met:
– The blade and attachments are not damaged.
– The blade is not deformed.
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– The blade is correctly attached.
– The blade is correctly sharpened.
– The blade is burr-free.
– The blade is correctly balanced.
– The minimum thickness and minimum width of the blade
are not fallen below, @ 20.2.
– The sharpening angle is observed, @ 20.2.
WARNING
■ In unsafe condition, blade parts may come loose and be
expelled. This may result in serious injury to people.
► Use an undamaged blade and attachments.
► Attach the blade correctly.
► Sharpen the blade correctly.
► If the minimum thickness or minimum width are fallen
below: replace the blade.
► Have the blade balanced by a STIHL specialist dealer.
► If anything is unclear: consult a STIHL specialist dealer.
4.6.3
Battery
The battery is in safe condition when the following conditions
are met:
– The battery is not damaged.
– The battery is clean and dry.
– The battery is working and has not been modified.
WARNING
■ The battery cannot function safely if it is not in safe
condition. There is a risk of serious injury to persons.
► Use an undamaged and functioning battery.
► Do not charge a damaged or defective battery.
► If the battery is dirty or wet: clean the battery and allow
it to dry.
4 Safety Precautions
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