Original Instruction ManualPrinted on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2020
0458-432-8621-A. VA5.G20.
0000007491_010_GB
FS 131, FS 131 R
English
1
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 trimmer /
brushcutter.
To receive maximum performance and
satisfaction from your STIHL trimmer /
brushcutter, 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 trimmer /
brushcutter. 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 trimmer / brushcutter is a
high-speed cutting tool some special
safety precautions must be observed to
reduce the risk of personal injury.
Careless or improper use may cause
serious or even fatal injury.
Make sure your unit is equipped with the
proper deflector, handle and harness for
the type of cutting attachment being
used. Always wear proper eye
protection.
Guide to Using this Manual 2
Safety Precautions and Working
Techniques 3
Approved Combinations of Cutting
Attachment, Deflector, Handle and
Harness 17
Approved Power Tool Attachments 19
Mounting the Bike Handle 19
Mounting the Loop Handle 21
Adjusting the Throttle Cable 22
Fitting the Carrying Ring 23
Mounting the deflector 23
Mounting the Cutting Attachment 24
Fuel 27
Fueling 29
Fitting the Harness 30
Balancing the Machine 30
Starting / Stopping the Engine 31
Transporting the Unit 34
Operating Instructions 36
Replacing the Air Filter 36
Engine Management 36
Adjusting the Carburetor 37
Spark Arresting Screen in Muffler 37
Spark Plug 37
Engine Running Behavior 39
Lubricating the Gearbox 39
Storing the Machine 39
Sharpening Metal Cutting Blades 40
Maintaining the Mowing Head 40
Maintenance and Care 42
Main Parts 44
Specifications 47
Maintenance and Repairs 48
Disposal 49
Limited Warranty 49
STIHL Incorporated Federal
Emission Control Warranty
Statement 49
STIHL Incorporated California
Exhaust and Evaporative
Emissions Control Warranty
Statement 51
Trademarks 53