1MS 270, MS 270 C, MS 280, MS 280 C
English / USA
BA_SE_121_006_01_11.fmPrinted on chlorine-free paper.
Printing inks contain vegetable oils; paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2007
0458 146 8621 A. M2. M7. CP. Printed in USA
STIHl
Contents
Guide to Using this Manual .............. 2
Safety Precautions and Working
Techniques ....................................... 3
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) .................... 30
Tensioning the Saw Chain
(Quick chain tensioner) .................. 30
Checking Chain Tension ................. 31
Fuel ................................................ 31
Fueling ............................................ 32
Chain Lubricant .............................. 33
Filling Chain Oil Tank ...................... 34
Checking Chain Lubrication ........... 34
Chain Brake .................................... 35
Winter Operation ............................ 36
Information Before You Start .......... 37
Starting / Stopping the Engine ........ 37
Operating Instructions .................... 40
Taking Care of Guide Bar ............... 41
Air Filter System ............................. 42
Cleaning the Air Filter ..................... 42
Motor Management ........................ 43
Adjusting the Carburetor ................ 43
Spark Arresting Screen
in Muffler ......................................... 45
Checking the Spark Plug ................ 46
Replacing Starter Rope
and Rewind Spring ......................... 47
Storing the Machine ........................ 49
Checking and Replacing
Chain Sprocket ............................... 50
Maintaining and Sharpening
Saw Chain ...................................... 51
Maintenance Chart ......................... 55
Main Parts of the Saw .................... 57
Specifications ................................. 59
Special Accessories ....................... 60
Ordering Spare Parts ..................... 61
Maintenance and Repairs .............. 61
STIHL Incorporated Federal
Emission Control Warranty
Statement ....................................... 62
Trademarks .................................... 64
Allow only persons who understand this
Manual to operate your chainsaw.
To receive maximum performance and
satisfaction from your STIHL chainsaw,
it is important that you read and
understand
the maintenance and safety
precautions,
starting on page 3, before
using your chainsaw.
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 chainsaw 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.
STIHL's philosophy is to continually
improve all of its products. As a result,
engineering changes and improvements
are made from time-to-time. If the
operating characteristics or the
appearance of your chainsaw differs
from those described in this Manual,
please contact your STIHL dealer for
information and assistance.
