BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C
English
8
(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 
uses. See the "Maintenance, Repair and 
Storing" section of these Safety 
Precautions. Remember that the risk of 
a brush or forest fire is greater in hot or 
dry conditions.
WARNING
Using the Vacuum Attachment
(only BG 56, BG 86, SH 56, SH 86)
For specific assembling instructions, 
see the appropriate section of your 
instructions manual. Do not use this 
appliance in vacuum mode without the 
catcher bag.
The vacuum attachment is designed for 
two-handed operation. Hold and operate 
the unit with your right hand on the 
control handle and your left hand on the 
assist handle.
Wear the catcher bag shoulder strap 
over your left shoulder – not across your 
chest – so that you can quickly throw off 
the unit and catcher bag in an 
emergency.
WARNING
WARNING
WARNING
Some STIHL power tools 
are equipped with a cata-
lytic converter, which is 
designed to reduce the 
exhaust emissions of the 
engine by a chemical 
process in the muffler. 
Due to this process, the 
muffler does not cool 
down as rapidly as con-
ventional mufflers when 
the engine returns to idle 
or is shut off. To reduce 
the risk of fire and burn 
injuries when using a cat-
alytic converter, always 
set your power tool down 
in the upright position and 
never locate it where the 
muffler is near dry brush, 
grass, wood chips or 
other combustible materi-
als while it is still hot.
  
  
  
  
To reduce the risk 
of injury, do not 
operate the 
machine unless it 
is fully assembled 
with a properly 
mounted suction 
tube and catcher 
bag.
In order to reduce the risk 
of injury from contact with 
rotating parts and dam-
age to the engine, the 
intake screen must 
always be closed and the 
locking tab engaged 
when the suction tube is 
not mounted. Stop 
engine and wait until the 
fan is stopped before 
opening the intake 
screen.
To reduce the risk of per-
sonal injury from fire and 
explosion, never attempt 
to vacuum hot or burning 
substances (e.g. smol-
dering ashes, glowing 
cigarettes) or combusti-
ble fluids (e.g. gasoline, 
paint thinners).