Original Instruction ManualPrinted on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2012
0458-296-8621-C. VA0.J12. 
0000000925_012_GB
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C
English
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This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process 
with electronic systems.
Contents
Allow only persons who fully understand 
this manual to operate your blower.
To receive maximum performance and 
satisfaction from your STIHL blower, it is 
important that you read, understand and 
follow the safety precautions and the 
operating and maintenance instructions 
in chapter "Safety Precautions and 
Working Techniques" before using your 
blower. For further information you can 
go to www.stihlusa.com.
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.
Guide to Using this Manual 2
Safety Precautions and Working 
Techniques 2
Using the Unit 10
Working Technique 11
Assembling the Blower 12
Assembling the Vacuum Shredder 13
Fuel 15
Fueling 16
Starting / Stopping the Engine 16
Cleaning the Air Filter 18
Engine Management 20
Adjusting the Carburetor 20
Spark Plug 21
Engine Running Behavior 23
Rewind Starter 23
Storing the Machine 23
Inspections and Maintenance by 
Dealer 24
Maintenance and Care 25
Main Parts 26
Specifications 27
Special Accessories 29
Maintenance and Repairs 29
Disposal 29
STIHL Incorporated Federal 
Emission Control Warranty 
Statement 30
STIHL Incorporated California 
Exhaust and Evaporative 
Emissions Control Warranty 
Statement 32
Trademarks 34