0458-718-8221-A
8
English 
5 IMPORTANT SAFETY INSTRUCTIONS
5.5 Trimmer
WARNING
■ To reduce the risk of electric shock:
■ If the moving cutting attachment contacts you, it will result 
in serious laceration injuries. To reduce the risk of such 
injuries:
– Keep hands, feet and other parts of your body away 
from the cutting attachment.
– Never touch the moving cutting attachment with your 
hand or any other part of your body.
– Never operate the trimmer with a damaged or 
missing deflector.
■ This battery-powered trimmer is intended only for light-
duty garden and landscape maintenance around the 
home. Use for other purposes may increase the risk of 
personal injury and property damage.
– Cut grass and similar material only. Do not use the 
trimmer for cutting brush, shrubs, bushes or other 
types of heavy vegetation.
– Read and follow the operating instructions in this 
manual for approved applications, @ 16.
■ To reduce the risk of personal injury to the operator and 
bystanders:
■ Although certain unauthorized attachments may fit your 
STIHL trimmers, their use may be extremely dangerous. 
Only attachments supplied by STIHL or expressly 
approved by STIHL for use with this specific model are 
authorized.
– Use only attachments supplied or expressly 
approved by STIHL.
– Never attempt to mount a metal blade for use on the 
trimmer.
– Never modify this trimmer in any way.
– Never attempt to modify or override the trimmer's 
controls or safety devices in any way.
– Never use a trimmer that has been modified or 
altered from its original design.
■ If the trimmer is dropped or subjected to similar heavy 
impacts:
– Check that it is undamaged, in good condition and 
functioning properly before continuing work.
– Check that the controls and safety devices are 
working properly.
– Check the LEDs for error messages, @ 10.1.
– Never work with a damaged or malfunctioning 
trimmer.
– Never use or charge a trimmer with a housing that is 
cracked, deformed, excessively hot, leaking battery 
fluid or otherwise damaged. These could be signs 
that the battery inside the trimmer is damaged, 
increasing the risk of personal injury and property 
damage from short circuit, fire or explosion. In case 
of doubt, have the trimmer checked by your 
authorized STIHL servicing dealer.
■ If the trimmer is damaged, not working properly, has been 
left outdoors, exposed to rain or damp conditions or 
dropped into water or other liquid, its components, 
– Do not expose the trimmer to rain, water 
or excessive moisture.
– Store the trimmer indoors.
– Never immerse the trimmer in water or 
other liquids.
– Always release the trigger switch and 
remove the activation key before 
assembling, transporting, adjusting, 
inspecting, cleaning, servicing, 
maintaining or storing the trimmer and 
any other time it is not in use.