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Stihl MS 171 User Manual

Stihl MS 171
140 pages
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Original Instruction ManualPrinted on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2014
0458-533-8621-D. VA4.D14.
0000000877_020_GB
MS 171, MS 181, MS 181 C, MS 211, MS 211 C
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 chain saw.
To receive maximum performance and
satisfaction from your STIHL chain saw,
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 chain saw. 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 chain saw is a high-speed
wood-cutting tool, some special safety
precautions must be observed as with
any other power saw 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 3
Cutting Attachment 25
Mounting the Bar and Chain (side
chain tensioner) 26
Mounting the Bar and Chain (quick
chain tensioner) 27
Tensioning the Saw Chain (side
chain tensioner) 29
Tensioning the Saw Chain (quick
chain tensioner) 29
Checking Chain Tension 30
Fuel 30
Fueling 31
Chain Lubricant 34
Filling Chain Oil Tank 35
Checking Chain Lubrication 35
Chain Brake 36
Winter Operation 37
Starting / Stopping the Engine 37
Operating Instructions 42
Taking Care of the Guide Bar 43
Shroud 43
Air Filter System 44
Cleaning the Air Filter 44
Engine Management 45
Adjusting the Carburetor 45
Spark Arresting Screen in Muffler 47
Spark Plug 47
Engine Running Behavior 48
Rewind Starter 48
Storing the Machine 49
Checking and Replacing the Chain
Sprocket 49
Maintaining and Sharpening the
Saw Chain 50
Maintenance and Care 54
Main Parts 56
Specifications 58
Special Accessories 60
Ordering Spare Parts 60
Maintenance and Repairs 60
Disposal 61
STIHL Incorporated Federal
Emission Control Warranty
Statement 61
STIHL Incorporated California
Exhaust and Evaporative
Emissions Control Warranty
Statement 63
Trademarks 65

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Stihl MS 171 Specifications

General IconGeneral
Idle speed- RPM
Motor type2-stroke motor
Chain pitch3/8 \
Blade length350 mm
Product colorBlack, Grey, Orange
Chain tensionerYes
Motor speed (max)10000 RPM
Fuel tank capacity0.266 L
Engine displacement31.8 cm³
Power sourceGasoline
Sound power level112 dB
Vibration emission4.5 m/s²
Sound pressure level99 dB

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