0458-838-8601-A
10
English 
5 IMPORTANT SAFETY INSTRUCTIONS
5.5 Trimmer / Brushcutter
WARNING
■ 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 / brushcutter with a 
damaged or missing deflector.
■ To reduce the risk of personal injury to the operator and 
bystanders from blade or line contact and thrown objects:
– Use of some cutting attachments will require you to 
change the deflector and/or harness. See chapter 
@ 23 of this manual for approved cutting 
attachment, deflector and harness configurations.
■ To reduce the risk of personal injury to the operator and 
bystanders:
– Always shut off the engine before assembling, 
transporting, adjusting, inspecting, cleaning, 
servicing, maintaining or storing the trimmer / 
brushcutter.
– Shut off the trimmer / brushcutter anytime it is not in 
use.
■ To reduce the risk of fire and explosion:
– Only use the spark plug specified in this instruction 
manual and make sure it and the ignition lead are 
clean and in good condition.
– Always press the spark plug boot snugly onto the 
spark plug terminal of the proper size.
– Never test the ignition system with the spark plug 
boot removed from the spark plug or with a removed 
spark plug.
■ Although certain unauthorized attachments may fit your 
STIHL trimmer / brushcutter, their use may be extremely 
dangerous. Only attachments supplied by STIHL or 
expressly approved by STIHL for use with this specific 
model are recommended.
– Use only attachments supplied or expressly 
approved by STIHL.
– Never modify this trimmer / brushcutter in any way.
– Never attempt to modify or override the trimmer's / 
brushcutter's controls or safety devices in any way.
– Never use a trimmer / brushcutter that has been 
modified or altered from its original design.
– For a list of cutting attachments authorized by STIHL 
for your unit, along with the approved deflector and 
harness configurations, see Chapter @ 23 of this 
instruction manual or the STIHL "Cutting 
Attachments, Parts & Accessories" catalog, 
available from your dealer or at www.stihlusa.com.
■ Any modification to your muffler or spark arresting screen 
could cause an increase in heat radiation, sparks or sound 
level, thereby increasing the risk of fire, burn injury or 
hearing loss. You may also permanently damage the 
engine.
– Never modify your muffler or spark arresting screen.
■ If the power tool 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 fuel system is tight and has no leaks.
– Check that the controls and safety devices are 
working properly, @ 13.1.
– Never work with a damaged or malfunctioning 
trimmer / brushcutter. In case of doubt, have the 
trimmer / brushcutter checked by your authorized 
STIHL servicing dealer.
– Make sure your unit is equipped with the 
proper deflector and harness for the type 
of cutting attachment being used. Keep 
the deflector and the attached skirt, 
where appropriate, properly adjusted at 
all times.