Original Instruction ManualPrinted on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2014
0458-207-8621-B. VA5.F14.
0000000367_013_GB
MS 170, MS 170 C, MS 180, MS 180 C
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
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 (front
chain tensioner) 26
Mounting the Bar and Chain (quick
chain tensioner) 27
Tensioning the Saw Chain (front
chain tensioner) 29
Tensioning the Saw Chain (quick
chain tensioner) 29
Checking Chain Tension 30
Fuel 30
Fueling 31
Chain Lubricant 32
Filling Chain Oil Tank 32
Checking Chain Lubrication 33
Chain Brake 33
Starting / Stopping the Engine 34
Operating Instructions 37
Taking Care of the Guide Bar 38
Shroud 39
Cleaning the Air Filter 39
Engine Management 40
Adjusting the Carburetor 40
Spark Arresting Screen in Muffler 41
Spark Plug 41
Rewind Starter 42
Storing the Machine 42
Checking and Replacing the Chain
Sprocket 43
Maintaining and Sharpening the
Saw Chain 43
Maintenance and Care 47
Main Parts 49
Specifications 51
Special Accessories 52
Ordering Spare Parts 52
Maintenance and Repairs 53
Disposal 53
STIHL Incorporated Federal
Emission Control Warranty
Statement 53
STIHL Incorporated California
Exhaust and Evaporative
Emissions Control Warranty
Statement 55
Trademarks 58
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