0458-725-8621-B
9
English 
5 IMPORTANT SAFETY INSTRUCTIONS
and perform its intended function. Check for alignment of 
moving parts, binding of moving parts, breakage of parts, 
mounting, and any other condition that may affect its 
operation. A guard or other part that is damaged should be 
properly repaired or replaced by an authorized service 
center unless indicated elsewhere in this manual.
14)Inspect the connecting cord periodically and, if damaged, 
have it repaired by an authorized service facility.
15)Keep guards in place and in working order.
16)Keep metal cutting blades sharp.
17)Keep hands and feet away from cutting area.
SAVE THESE INSTRUCTIONS
5.2 Introduction
WARNING
■ Use of this machine may be hazardous. If the rotating line 
or blade comes in contact with your body, it will cut you. 
When it comes in contact with solid foreign objects such 
as rocks, glass or bits of metal, it may throw or fling them 
directly or by ricochet in the direction of bystanders or the 
operator. Striking such objects could damage the cutting 
attachment and may cause blades to crack, chip or break. 
Thrown objects, including broken heads or blades, may 
result in serious or fatal injury to the operator or 
bystanders. As more fully explained later in this manual, 
to reduce the risk of personal injury:
– Make sure your unit is equipped with the proper 
handle, harness and deflector for the type of cutting 
attachment you are using.
– Use only cutting attachments that are specifically 
authorized by STIHL for use on your trimmer model.
■ Do not lend or rent your trimmer without the instruction 
manual. Be sure that anyone using it understands the 
information contained in this manual. Have your dealer 
show you how to operate your trimmer. Observe all 
applicable laws, regulations, standards and ordinances.
5.3 Intended Use
WARNING
■ When mounted with a mowing head or grass cutting 
blade, this trimmer / brushcutter may be used for cutting 
heavy grass, weeds and similar vegetation. When 
mounted with a brush knife, it may be used for cutting 
heavy grass, weeds, brush, scrub and similar vegetation 
with a maximum diameter of 0.8in. (20mm).
– Do not use it for any other purposes.
■ Improper use could result in personal injury or property 
damage, including damage to the power tool.
– Use the power tool only as described in this manual.
– 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.
– Be sure to read and follow the warnings and 
instructions for your battery and charger before 
charging or starting work.
■ This power tool may be powered by a STIHL AR series 
backpack battery. Alternatively, it may be powered by a 
STIHL AP series battery in combination with a STIHL AP 
Battery Bag with Connecting Cord.
Batteries, chargers and other accessories are sold 
separately.