0458-507-0121-A
9
English 
4 Safety Precautions
– The trimmer is clean.
– The controls function properly and have not been 
modified.
– A combination of cutting attachment and deflector 
recommended in this instruction manual is mounted.
– Cutting attachment and deflector are properly mounted.
– Only original STIHL accessories designed for this trimmer 
are fitted.
– Accessories are properly mounted.
WARNING
■ If components do not comply with safety requirements, 
they will no longer function properly, safety devices may 
be rendered inoperative and fuel leaks may occur. This 
can result in serious or fatal injuries.
► Work only with an undamaged trimmer.
► If fuel is leaking from the trimmer: Do not use the 
trimmer and contact a STIHL dealer for assistance.
► Close the fuel tank cap.
► If the trimmer is dirty: Clean the trimmer.
► Never attempt to modify your trimmer. Exception: 
Mounting one of the combinations of cutting attachment 
and deflector recommended in this instruction manual.
► If the controls do not function properly: Do not use your 
trimmer.
► Only fit original STIHL accessories designed for this 
trimmer.
► Mount the cutting attachment and deflector as 
described in this instruction manual.
► Mount accessories as described in this instruction 
manual or the instructions supplied with the accessory.
► Never insert objects into the trimmer’s openings.
► Replace worn or damaged labels.
► If you have any queries: Contact a STIHL servicing 
dealer for assistance.
4.6.2 Deflector
The deflector is in a safe condition if the following points are 
observed:
– The deflector is not damaged.
– If you are using the line limiting blade and skirt: Line 
limiting blade and skirt are correctly fitted.
WARNING
■ If components do not comply with safety requirements, 
they will no longer function properly and safety devices 
may be rendered inoperative. This can result in serious 
injuries.
► Work only with an undamaged deflector.
► If you are using the line limiting blade and skirt: Work 
with a correctly fitted line limiting blade and skirt.
► If you have any queries: Contact your STIHL servicing 
dealer.
4.6.3 Mowing Head
The mowing head is in a safe condition if the following points 
are observed:
– The mowing head is not damaged.
– The mowing head is not jammed.
– The mowing lines are properly installed.
WARNING
■ If they are in an unsafe condition, parts of the mowing 
head or mowing lines may come off and be thrown at high 
speed. This can result in serious injuries.
► Work only with an undamaged mowing head.
► Never use metal elements in place of the nylon mowing 
lines.
► If you have any queries: Contact your STIHL servicing 
dealer for assistance.