BR 800, BR 800 X
English
10
otherwise disturbing asbestos, 
immediately contact your employer or a 
local OSHA representative.
WARNING
Dust with silica in its composition may 
contain crystalline silica. Silica is a basic 
component of sand, quartz, brick, clay, 
granite and numerous other minerals 
and rocks, including masonry and 
concrete products. Repeated and / or 
substantial inhalation of airborne 
crystalline silica can cause serious or 
fatal respiratory disease, including 
silicosis. In addition, the state of 
California and some other authorities 
have listed respirable crystalline silica as 
a substance known to cause cancer. 
When encountering such materials, 
always follow the respiratory 
precautions mentioned above.
Operating Instructions
WARNING
In the event of an emergency, switch off 
the engine immediately – move the 
setting lever to 0 or STOP.
WARNING
Even though bystanders should be kept 
away from the running power tool, never 
work alone. Keep within calling distance 
of others in case help is needed.
Stop the engine immediately if you are 
approached.
WARNING
To reduce the risk of personal injury, do 
not direct air blast towards bystanders, 
since the high pressure of the air flow 
can injure eyes and can blow small 
objects at great speed.
WARNING
The blower fan between the air intake 
and output openings rotates whenever 
the engine is running.
Never insert any foreign object into the 
air intake of the machine or into the 
nozzle of the blower. It will damage the 
fan wheel and may cause serious injury 
to the operator or bystanders as a result 
of the object or broken parts being 
thrown out at high speed.
Do not place the blower on the ground 
when operating at high speed, because 
small objects such as sand, grass, dust, 
etc. may be pulled into the air intake and 
damage the fan wheel. It is best to turn 
the machine off when putting it on the 
ground.
WARNING
Never modify your muffler. Any 
modification 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. Have 
your muffler serviced and repaired by 
your STIHL servicing dealer only.
WARNING
The muffler and other parts of the engine 
(e.g. fins of the cylinder, spark plug) 
become hot during operation and remain 
hot for a while after stopping the engine. 
To reduce risk of burns, do not touch the 
muffler and other parts while they are 
hot. Keep the area around the muffler 
clean. Remove excess lubricant and all 
debris such as pine needles, branches 
or leaves. Let the engine cool down 
sitting on concrete, metal, bare ground 
or solid wood away from any 
combustible substances.
WARNING
An improperly mounted or damaged 
cylinder housing or a 
damaged/deformed muffler shell may 
interfere with the cooling process of the 
muffler. To reduce the risk of fire or burn 
injury, do not continue work with a 
damaged or improperly mounted 
cylinder housing or a 
damaged/deformed muffler shell.
Your muffler is furnished with a spark 
arresting screen designed to reduce the 
risk of fire from the emission of hot 
particles. Never operate your unit with a 
missing or damaged spark arresting 
screen. If your gas/oil mix ratio is correct 
(i.e., not too rich), this screen will 
normally stay clean as a result of the 
heat from the muffler and need no 
service or maintenance. If you 
experience loss of performance and you 
suspect a clogged screen, have your 
muffler maintained by a STIHL servicing 
dealer. Some state or federal laws or 
regulations may require a properly 
maintained spark arrestor for certain