0458-507-0121-A
14
English 
5 Preparing Trimmer for Operation
cutting attachment are not cleaned correctly, components 
may no longer function properly or safety devices may be 
rendered inoperative. This can result in serious injuries.
► Clean the trimmer, deflector and cutting attachment as 
described in this instruction manual.
■ If the trimmer, deflector and cutting attachment are not 
serviced or repaired correctly, components may no longer 
function properly or safety devices may be rendered 
inoperative. This can result in serious or fatal injuries.
► Do not attempt to service or repair the trimmer or 
deflector.
► If the trimmer or the deflector require servicing or 
repairs: Contact your STIHL servicing dealer for 
assistance.
► Maintain the cutting attachment as described in the 
instructions supplied with the cutting attachment being 
used or on the cutting attachment’s packaging.
■ The user can be cut by the sharp cutting edges while 
cleaning or maintaining cutting attachments. This can 
result in personal injury.
5.1 Preparing Trimmer for Operation
Perform the following steps before starting work:
► Make sure the following components are in a safe 
condition:
– Trimmer, @ 4.6.1.
– Deflector, @ 4.6.2.
– Mowing head or metal cutting attachment, @ 4.6.3 or 
@ 4.6.4.
► Clean the trimmer, @ 15.1.
► Fit the carrying ring, @ 6.1.
► Mount the bike handle, @ 6.2.
► Select combination of cutting attachment, deflector and 
carrying system, @ 20.
► Mount the deflector, @ 6.3.1.
► If you are using a universal deflector together with a 
mowing head: Fit the skirt and line limiting blade, 
@ 6.4.1.
► Mount mowing head or metal cutting attachment, @ 6.5.1 
or @ 6.6.1
► Fuel the trimmer, @ 8.2.
► Fit and adjust the carrying system, @ 7.1.
► Balance the trimmer, @ 7.2.
► Adjust the bike handle, @ 7.3.
► Check the controls, @ 10.1.
► If you cannot carry out these steps: Do not use your 
trimmer and contact your STIHL dealer for assistance.
6.1 Fitting the Carrying Ring
► Shut off the engine.
► Hold the carrying ring (1) against the drive tube (2) and 
then press it into position.
► Fit the nut (4).
► Wear work gloves made of durable material.
5 Preparing Trimmer for Operation
6 Assembling the Trimmer