1
BR 500, BR 550, BR 600
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STIHl
Contents
Guide to Using this Manual .............. 2
Ignition System ................................. 3
Safety Precautions ........................... 3
Assembling the Blower –
with non-adjustable
blowing attachment ......................... 11
Assembling the Blower –
with length-adjustable
blowing attachment ......................... 15
Adjusting the Throttle Cable ........... 18
Fitting the Harness ......................... 18
4-MIX Engine .................................. 19
Fuel ................................................ 19
Fueling ........................................... 20
Information Before You Start .......... 21
Starting / Stopping the Engine ........ 21
Replacing the Air Filter ................... 24
Motor Management ........................ 25
Adjusting the Carburetor ................ 25
Checking the Spark Plug ................ 27
Spark Arresting Screen
in Muffler ......................................... 28
Replacing Starter Rope
and Rewind Spring ......................... 28
Storing the Machine ........................ 30
Maintenance Chart ......................... 31
Parts and Controls -
with non-adjustable
blowing attachment ......................... 32
Parts and Controls –
with length-adjustable
blowing attachment ......................... 34
Specifications ................................. 36
Special Accessories ....................... 37
Maintenance and Repairs ............... 37
STIHL Limited Emission
Control Warranty Statement ........... 38
Allow only persons who understand this
Manual to operate your blower.
To receive maximum performance and
satisfaction from your STIHL blower, it is
important that you read and understand
the maintenance and safety precautions,
starting on page 3, before using your
blower.
Contact your STIHL dealer or the STIHL
distributor for your area if you do not
understand any of the instructions in this
Manual.
!
Warning!
Because a blower is a high-speed tool,
some special safety precautions must
be observed as with any other power
tool to reduce the risk of personal injury.
Careless or improper use may cause
serious or even fatal injury.
STIHL's philosophy is to continually
improve all of its products. As a result,
engineering changes and improvements
are made from time-to-time. If the
operating characteristics or the
appearance of your blower differs from
those described in this Manual, please
contact your STIHL dealer for
information and assistance.
