Original Instruction ManualPrinted on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2018
0458-784-0121-A. VA3.J18.
0000007251_004_GB
MS 651
English
1
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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
Dear Customer,
Thank you for choosing a quality
engineered STIHL product.
It has been built using modern
production techniques and
comprehensive quality assurance.
Every effort has been made to ensure
your satisfaction and trouble-free use of
the product.
Please contact your dealer or our sales
company if you have any queries
concerning this product.
Your
Dr. Nikolas Stihl
Guide to Using this Manual 2
Safety Precautions 3
Reactive Forces 8
Working Techniques 9
Cutting Attachment 18
Mounting the Bar and Chain 19
Tensioning the Chain 20
Checking Chain Tension 20
Fuel 20
Fueling 21
Chain Lubricant 23
Filling Chain Oil Tank 23
Checking Chain Lubrication 24
Chain Brake 24
Winter Operation 25
Starting / Stopping the Engine 26
Operating Instructions 30
Oil Quantity Control 31
Taking Care of the Guide Bar 31
Remove Air Filter 32
Cleaning the Air Filter 32
Adjusting the Carburetor 33
Spark Plug 34
Storing the Machine 35
Checking and Replacing the Chain
Sprocket 35
Maintaining and Sharpening the
Saw Chain 36
Maintenance and Care 40
Minimize Wear and Avoid Damage 42
Main Parts 43
Specifications 44
Ordering Spare Parts 45
Maintenance and Repairs 46
Disposal 46
EC Declaration of Conformity 46
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