Instruction Manual

Original Instruction ManualPrinted on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2013 0458-178-8621-B. VA8.M13. 0000001844_009_GB
MS 660
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 3
Reactive Forces 15
Working Techniques 20
Cutting Attachment 26
Mounting the Bar and Chain 27
Tensioning the Chain 28
Checking Chain Tension 28
Fuel 28
Fueling 29
Chain Lubricant 30
Filling Chain Oil Tank 30
Checking Chain Lubrication 31
Chain Brake 31
Winter Operation 32
Electric Handle Heating 33
Starting / Stopping the Engine 33
Operating Instructions 37
Oil Quantity Control 38
Taking Care of the Guide Bar 38
Air Filter System 39
Remove air filter 40
Cleaning the Air Filter 40
Engine Management 40
Adjusting the Carburetor 41
Spark Arresting Screen in Muffler 42
Spark Plug 43
Rewind Starter 44
Storing the Machine 44
Checking and Replacing the Chain
Sprocket 44
Maintaining and Sharpening the
Saw Chain 45
Maintenance and Care 49
Main Parts 51
Specifications 53
Special Accessories 54
Ordering Spare Parts 54
Maintenance and Repairs 55
Disposal 55
STIHL Incorporated Federal
Emission Control Warranty
Statement 55
Trademarks 57