From inside (document excerpt):
STIHL MS 171, 181, 211 Instruction Manual Manual de instrucciones Warning! To reduce the risk of kickback injury use STIHL reduced kickback bar and STIHL PMMC3 (3/8 ” Picco) or PMC3 (3/8 ” Picco) chain depending on sprocket pitch or other available low kickback components. Advertencia! Para reducir el riesgo de lesionarse como resultado de un culatazo, utilice la barra de contragolpe reducido y la cadena PMMC3 (Picco de 3/8 pulg) o PMC3 (Picco de 3/8 pulg) de STIHL, dependiendo de la rueda dentada usada y de otros componentes reductores de contragolpe.
Read and follow all safety precautions in Instruction Manual improper use can cause serious or fatal injury. Lea y siga todas las precauciones de seguridad dadas en el manual de instrucciones el uso incorrecto puede causar lesiones graves o mortales. Instruction Manual 1 – 60 Manual de instrucciones 61 – 127 English Contents Guide to Using this Manual Safety Precautions and Working Techniques Cutting Attachment Mounting the Bar and Chain (side chain tensioner) Mounting the Bar and Chain (quick chain tensioner) Tensioning the Saw Chain (side chain tensioner) Tensioning the Saw Chain (quick chain tensioner) Check Chain Tension Fuel Fueling Chain Lubricant Filling Chain Oil Tank Checking Chain Lubrication Chain Brake Winter Operation Information Before You Start Starting / Stopping the Engine Operating Instructions Taking Care of the Guide Bar Air Filter System Cleaning the Air Filter Engine Management Adjusting the Carburetor Checking the Spark Plug Replacing the Starter Rope and Rewind Spring Storing the Machine Checking and Replacing the Chain Sprocket Maintaining and Sharpening the Saw Chain Maintenance and Care Main Parts Specifications Special Accessories Ordering Spare Parts Maintenance and Repairs STIHL Incorporated Federal Emission Control Warranty Statement STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement Trademarks 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 and understand and follow the maintenance and safety precautions 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. STIHL’s philosophy is to continually improve all of its products. As a result, engineering changes and improvements may be made from time-to-time. If the operating characteristics or the appearance of your chain saw differs from those described in this manual, please contact your STIHL dealer for information and assistance. Printed on chlorine-free paper Printing inks contain vegetable oils, paper can be recycled. Original Instruction Manual 56 58 60 ANDREAS STIHL AG & Co. KG, 2009 0458-533-8621-B. M10.D9.CP. English Guide to Using this Manual Pictograms All the pictograms attached to the machine are shown and explained in this manual. Symbols in text The operating and safety instructions are supported by illustrations. The individual steps or procedures described in the manual may be marked in different ways: N A bullet marks a step or procedure without direct reference to an illustration. Warning! indicates a hazardous situation which, if not avoided, could result in severe or fatal injury. Caution! indicates a risk of property damage, including damage to the machine or its individual components. Engineering improvements STIHL’s philosophy is to continually improve all of its products. As a result, engineering changes and improvements are made from time to time. Therefore, some changes, modifications and improvements may not be covered in this manual. If the operating characteristics or the appearance of your machine differ from those described in this manual, please contact your STIHL dealer for assistance.