Stihl MS 251 C-Q User Manual

Original Instruction ManualPrinted on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2017 0458-740-8321-B. VA2.A17. 0000006628_005_GB
MS 251 C-Q
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
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 troublefree use of
the product.
Please contact your dealer or our sales
company if you have any queries
concerning this product.
Your
Dr. Nikolas Stihl
QuickStop Super Chain Brake
System 2
Guide to Using this Manual 2
Safety Precautions 3
Reactive Forces 8
Working Techniques 10
Cutting Attachment 18
Mounting the Bar and Chain (quick
chain tensioner) 19
Tensioning the Saw Chain (quick
chain tensioner) 21
Checking Chain Tension 21
Fuel 22
Fueling 23
Chain Lubricant 26
Filling Chain Oil Tank 27
Checking Chain Lubrication 27
Chain Brake 28
Winter Operation 29
Starting / Stopping the Engine 30
Operating Instructions 34
Taking Care of the Guide Bar 35
Shroud 35
Air Filter System 36
Cleaning the Air Filter 36
Adjusting the Carburetor 37
Spark Arresting Screen in Muffler 38
Spark Plug 38
Storing the Machine 39
Checking and Replacing the Chain
Sprocket 39
Maintaining and Sharpening the
Saw Chain 40
Maintenance and Care 44
Main Parts 46
Specifications 47
Ordering Spare Parts 48
Maintenance and Repairs 48
Disposal 49
EC Declaration of Conformity 49

Stihl MS 251 C-Q Specifications

General

Brand	Stihl
Model	MS 251 C-Q
Category	Chainsaw
Language	English