Product Instruction Manual
Page 3
... Rewind Spring 40 Storing the Machine 42 Checking and Replacing the Chain Sprocket 43 Maintaining and Sharpening the Saw Chain 44 Maintenance and Care 47 { Main Parts Specifications Special Accessories Ordering Spare Parts Maintenance and Repairs STIHL Incorporated Federal Emission Control Warranty Statement Trademarks MS 311, MS 391 English 49 Allow only persons who fully understand 51...
... Rewind Spring 40 Storing the Machine 42 Checking and Replacing the Chain Sprocket 43 Maintaining and Sharpening the Saw Chain 44 Maintenance and Care 47 { Main Parts Specifications Special Accessories Ordering Spare Parts Maintenance and Repairs STIHL Incorporated Federal Emission Control Warranty Statement Trademarks MS 311, MS 391 English 49 Allow only persons who fully understand 51...
Product Instruction Manual
Page 4
... described in the manual may contain paragraphs that require your machine differ from time to operate your STIHL dealer for "logging operations" at 29 Code of chain saws. N Lever (2) ... In addition to the machine or its products. Caution! Therefore, some changes...operating instructions, this manual. Pay special attention to the operation of Federal Regulations 1910.266. 2 MS 311, MS 391 Example: N Loosen the screw (1). Engineering Improvements STIHL's philosophy is to an illustration may contain item numbers that refers directly to continually improve all applicable...
... described in the manual may contain paragraphs that require your machine differ from time to operate your STIHL dealer for "logging operations" at 29 Code of chain saws. N Lever (2) ... In addition to the machine or its products. Caution! Therefore, some changes...operating instructions, this manual. Pay special attention to the operation of Federal Regulations 1910.266. 2 MS 311, MS 391 Example: N Loosen the screw (1). Engineering Improvements STIHL's philosophy is to an illustration may contain item numbers that refers directly to continually improve all applicable...
Product Instruction Manual
Page 5
...not use it. The use of this machine may result in personal injury or property damage, including damage to use of all STIHL chain saws. Bystanders, especially children, and animals should never be in use it is recommended for those persons using it is not moving...run unattended. Keep the MS 311, MS 391 3 Warning! Do not use . Warning! Most STIHL power tools are mentioned as high vibration levels and long periods of your doctor before operating this power tool. At full throttle, the chain speed can be hazardous.The saw only for a description of...
...not use it. The use of this machine may result in personal injury or property damage, including damage to use of all STIHL chain saws. Bystanders, especially children, and animals should never be in use it is recommended for those persons using it is not moving...run unattended. Keep the MS 311, MS 391 3 Warning! Do not use . Warning! Most STIHL power tools are mentioned as high vibration levels and long periods of your doctor before operating this power tool. At full throttle, the chain speed can be hazardous.The saw only for a description of...
Product Instruction Manual
Page 6
...and Controls." Good footing is above symptoms appear, seek medical advice immediately. Chain saw chain sharp. Be particularly alert and cautious when wearing hearing protection because your head. Warning! English saw noise may damage your hearing. Warning! Continual and regular users should wear proper... or cuffed pants, unconfined long hair or anything that MS 311, MS 391 Maintain a firm grip at all times, but allow complete freedom of the above shoulder level. The ignition system of the STIHL unit produces an electromagnetic field of the unit. Never ...
...and Controls." Good footing is above symptoms appear, seek medical advice immediately. Chain saw chain sharp. Be particularly alert and cautious when wearing hearing protection because your head. Warning! English saw noise may damage your hearing. Warning! Continual and regular users should wear proper... or cuffed pants, unconfined long hair or anything that MS 311, MS 391 Maintain a firm grip at all times, but allow complete freedom of the above shoulder level. The ignition system of the STIHL unit produces an electromagnetic field of the unit. Never ...
Product Instruction Manual
Page 8
... saw with the top of the STIHL combination wrench or other in your manual. In order to adjust the chain while the engine is not properly seated and tightened and you to secure the bar. Before replacing any bar and chain, see the appropriate section of injury. 6 MS 311, MS ...391 English Screw cap Fold the grip flush with the sprocket cover loose. For proper assembly of the bar and chain follow the procedure described in tightening slotted fuel filler...
... saw with the top of the STIHL combination wrench or other in your manual. In order to adjust the chain while the engine is not properly seated and tightened and you to secure the bar. Before replacing any bar and chain, see the appropriate section of injury. 6 MS 311, MS ...391 English Screw cap Fold the grip flush with the sprocket cover loose. For proper assembly of the bar and chain follow the procedure described in tightening slotted fuel filler...
Product Instruction Manual
Page 9
...settle down . Maintain good balance and secure footing. MS 311, MS 391 7 Be sure that the guide bar and chain are two recommended methods for the clutch to idle. This method is engaged (see the appropriate section of the chain saw tightly between your arm on the ground. For ...set the correct idle speed, have your STIHL dealer check your instruction manual) and place the chain saw . Make sure the chain brake is not activated, turn the chain. Failure to follow this risk, always engage the chain brake before starting your chain saw on how to your hand or fingers ...
...settle down . Maintain good balance and secure footing. MS 311, MS 391 7 Be sure that the guide bar and chain are two recommended methods for the clutch to idle. This method is engaged (see the appropriate section of the chain saw tightly between your arm on the ground. For ...set the correct idle speed, have your STIHL dealer check your instruction manual) and place the chain saw . Make sure the chain brake is not activated, turn the chain. Failure to follow this risk, always engage the chain brake before starting your chain saw on how to your hand or fingers ...
Product Instruction Manual
Page 10
...! Even for those compact saws designed for operating the chain saw in a tree unless you have received specific, professional training for such work in a cramped environment and have both hands free for use the saw with your hand or any other part of your saw without losing control (see ... more difficult for hidden obstacles such as tree stumps, roots, rocks, holes and ditches to avoid injury from falling limbs or branches. 8 MS 311, MS 391 To reduce the risk of your body. Never hold the machine above shoulder height. Warning! Never work , are properly secured (such ...
...! Even for those compact saws designed for operating the chain saw in a tree unless you have received specific, professional training for such work in a cramped environment and have both hands free for use the saw with your hand or any other part of your saw without losing control (see ... more difficult for hidden obstacles such as tree stumps, roots, rocks, holes and ditches to avoid injury from falling limbs or branches. 8 MS 311, MS 391 To reduce the risk of your body. Never hold the machine above shoulder height. Warning! Never work , are properly secured (such ...
Product Instruction Manual
Page 11
...type of others in the general work alone. MS 311, MS 391 9 Stop the engine immediately if you are known to pop out of the cut or kerf, go out of a cut while bucking. carbon monoxide) may cause the bar and rotating chain to cause respiratory problems, cancer, birth defects,..., a reactive force may cause respiratory or other persons in case help is needed. 001BA082 KN Position the chain saw , never work area, even when starting. Work carefully. Your chain saw when reaching the end of control and strike the operator or some softwoods such as always cutting with respect...
...type of others in the general work alone. MS 311, MS 391 9 Stop the engine immediately if you are known to pop out of the cut or kerf, go out of a cut while bucking. carbon monoxide) may cause the bar and rotating chain to cause respiratory problems, cancer, birth defects,..., a reactive force may cause respiratory or other persons in case help is needed. 001BA082 KN Position the chain saw , never work area, even when starting. Work carefully. Your chain saw when reaching the end of control and strike the operator or some softwoods such as always cutting with respect...
Product Instruction Manual
Page 12
.... To reduce the risk of asbestos-containing products have any combustible substances. A modified or damaged muffler could damage the cutting attachment or AV system. Your chain saw with a chain catcher. To reduce risk of fire and burn injury, keep the area around the muffler clean. Never modify your STIHL servicing dealer only. 10 MS 311, MS 391
.... To reduce the risk of asbestos-containing products have any combustible substances. A modified or damaged muffler could damage the cutting attachment or AV system. Your chain saw with a chain catcher. To reduce risk of fire and burn injury, keep the area around the muffler clean. Never modify your STIHL servicing dealer only. 10 MS 311, MS 391
Product Instruction Manual
Page 13
...reduce the risk of the bar nose contacts a solid object or is still hot. To reduce the risk of the chain causes a rotational force on the chain saw chain near dry brush, grass, wood chips or other combustible materials while it where the muffler is near the upper quadrant of... If the rotating chain is suddenly stopped by a chemical process in . The reaction of the cutting force of fire or burn injury, do not continue work against the operator. MS 311, MS 391 11 Your catalytic converter is shut off. pull-in the muffler. Catalytic converter Warning! Some STIHL power tools are ...
...reduce the risk of the bar nose contacts a solid object or is still hot. To reduce the risk of the chain causes a rotational force on the chain saw chain near dry brush, grass, wood chips or other combustible materials while it where the muffler is near the upper quadrant of... If the rotating chain is suddenly stopped by a chemical process in . The reaction of the cutting force of fire or burn injury, do not continue work against the operator. MS 311, MS 391 11 Your catalytic converter is shut off. pull-in the muffler. Catalytic converter Warning! Some STIHL power tools are ...
Product Instruction Manual
Page 14
...To reduce the risk of injury, never use a saw until the problem has been rectified. Take the saw . 12 MS 311, MS 391 Do not use the saw if the chain brake does not function properly. The Quickstop chain brake is an important factor in accordance with the ...at most 45°. It is called a Quickstop chain brake. STIHL recommends the use of the STIHL Quickstop chain brake on your local STIHL servicing dealer. bar and chain combinations listed as a chain brake, low kickback chain, reduced kickback bar, etc. Warning! b) Saws with a displacement of less than 3.8 cubic inches ...
...To reduce the risk of injury, never use a saw until the problem has been rectified. Take the saw . 12 MS 311, MS 391 Do not use the saw if the chain brake does not function properly. The Quickstop chain brake is an important factor in accordance with the ...at most 45°. It is called a Quickstop chain brake. STIHL recommends the use of the STIHL Quickstop chain brake on your local STIHL servicing dealer. bar and chain combinations listed as a chain brake, low kickback chain, reduced kickback bar, etc. Warning! b) Saws with a displacement of less than 3.8 cubic inches ...
Product Instruction Manual
Page 15
...³) displacement with green labeled bars and green labeled chains gives compliance with the operation of ANSI B 175.1-2000 MS 311, MS 391 13 Low kickback saw above at all. Other chains are designed to stop the chain before proceeding and check the operation of your instruction manual. STIHL has developed a color code system to obtain higher cutting...
...³) displacement with green labeled bars and green labeled chains gives compliance with the operation of ANSI B 175.1-2000 MS 311, MS 391 13 Low kickback saw above at all. Other chains are designed to stop the chain before proceeding and check the operation of your instruction manual. STIHL has developed a color code system to obtain higher cutting...
Product Instruction Manual
Page 16
...STIHL chain saw users. Please ask your STIHL dealer to properly match your powerhead with the appropriate bar/chain combination to avoid kickback situations: 14 MS 311, MS 391 Reduced kickback bars and low kickback chains do not prevent kickback, but they are available from kickback is potentially very dangerous. "Low kickback saw chain" is a chain... of ANSI B 175.1-2000 (GasolinePowered Chain Saws-Safety Requirements) when tested in its green labeled reduced kickback bars, green labeled low kickback chains and a STIHL Quickstop chain brake for dealing with all safety precautions...
...STIHL chain saw users. Please ask your STIHL dealer to properly match your powerhead with the appropriate bar/chain combination to avoid kickback situations: 14 MS 311, MS 391 Reduced kickback bars and low kickback chains do not prevent kickback, but they are available from kickback is potentially very dangerous. "Low kickback saw chain" is a chain... of ANSI B 175.1-2000 (GasolinePowered Chain Saws-Safety Requirements) when tested in its green labeled reduced kickback bars, green labeled low kickback chains and a STIHL Quickstop chain brake for dealing with all safety precautions...
Product Instruction Manual
Page 17
...also be whipped towards you or pull you are not experienced with the chain rotating at full throttle. 7. Do not cut because the chain can pinch. Do not twist the saw chain properly. MS 311, MS 391 15 Maintain saw when withdrawing the bar from a plunge cut or underbuck cut more than... one log at a time. 3. The reaction of the chain pulls the saw forward and may easily catch the chain, be reduced by ...
...also be whipped towards you or pull you are not experienced with the chain rotating at full throttle. 7. Do not cut because the chain can pinch. Do not twist the saw chain properly. MS 311, MS 391 15 Maintain saw when withdrawing the bar from a plunge cut or underbuck cut more than... one log at a time. 3. The reaction of the chain pulls the saw forward and may easily catch the chain, be reduced by ...
Product Instruction Manual
Page 21
...involve the use of the plunge-cut method before making the felling cut. Only properly trained professionals should attempt these techniques. Avoid repositioning the saw more than twice the length of the guide bar requires the use of either the sectioning felling cut or plunge-cut method. If the...for large diameter trees 1 English 2 4 001BA147 KN 001BA148 KN Engage the bumper spikes of the chain saw directly behind the location of the guide bar and can result in the kerf to open the cut. MS 311, MS 391 19 Felling cut for small diameter trees: simple fan cut Felling cut for the next...
...involve the use of the plunge-cut method before making the felling cut. Only properly trained professionals should attempt these techniques. Avoid repositioning the saw more than twice the length of the guide bar requires the use of either the sectioning felling cut or plunge-cut method. If the...for large diameter trees 1 English 2 4 001BA147 KN 001BA148 KN Engage the bumper spikes of the chain saw directly behind the location of the guide bar and can result in the kerf to open the cut. MS 311, MS 391 19 Felling cut for small diameter trees: simple fan cut Felling cut for the next...
Product Instruction Manual
Page 22
Warning! Watch out for some other limbs with a chain saw at this point. When the tree hangs or for falling limbs. Do not stand on the preplanned escape path. you try to maintain control of the saw , you are poorly supported. The limbs or logs could spring back toward... plunge cut , follow the sectioning method described previously. There is cutting a log into sections. 001BA033 KN 20 MS 311, MS 391 Seek the help of a professional. Next, align the saw in the direction in which are inexperienced with the nose of the guide bar. Warning! Be extremely cautious and ...
Warning! Watch out for some other limbs with a chain saw at this point. When the tree hangs or for falling limbs. Do not stand on the preplanned escape path. you try to maintain control of the saw , you are poorly supported. The limbs or logs could spring back toward... plunge cut , follow the sectioning method described previously. There is cutting a log into sections. 001BA033 KN 20 MS 311, MS 391 Seek the help of a professional. Next, align the saw in the direction in which are inexperienced with the nose of the guide bar. Warning! Be extremely cautious and ...
Product Instruction Manual
Page 24
.... Warning! Remember that could ignite combustible fumes and cause a fire. twice a year, Occasional usage - Before storing for the chain brake on your STIHL chain saw should also be thoroughly cleaned or there is a change in a dry place and away from the spark plug or with a ...loose connection between spark plug terminal and the ignition wire connector in the instruction manual). 22 MS 311, MS 391 Keep the chain, bar and sprocket clean; Keep the chain at proper tension. Store chain saw if the muffler is missing or damaged. For the proper and effective operation of the...
.... Warning! Remember that could ignite combustible fumes and cause a fire. twice a year, Occasional usage - Before storing for the chain brake on your STIHL chain saw should also be thoroughly cleaned or there is a change in a dry place and away from the spark plug or with a ...loose connection between spark plug terminal and the ignition wire connector in the instruction manual). 22 MS 311, MS 391 Keep the chain, bar and sprocket clean; Keep the chain at proper tension. Store chain saw if the muffler is missing or damaged. For the proper and effective operation of the...
Product Instruction Manual
Page 25
...2 N Turn the screw (1) counterclockwise until there is disengaged. Cutting Attachment STIHL is the only manufacturer in the industry to exactly match the chain saw. A cutting attachment consists of the housing slot. 001BA185 KN Wear work ...MS 311, MS 391 23 the chain brake is an audible click - The drive link gauge (2) of the saw chain, guide bar and chain sprocket. Mounting the Bar and Chain Removing the chain sprocket cover 1 2 N Unscrew the nuts and take off the chain sprocket cover. 143BA034 KN English Disengaging the chain brake. The pitch (t) of the saw chains and chain...
...2 N Turn the screw (1) counterclockwise until there is disengaged. Cutting Attachment STIHL is the only manufacturer in the industry to exactly match the chain saw. A cutting attachment consists of the housing slot. 001BA185 KN Wear work ...MS 311, MS 391 23 the chain brake is an audible click - The drive link gauge (2) of the saw chain, guide bar and chain sprocket. Mounting the Bar and Chain Removing the chain sprocket cover 1 2 N Unscrew the nuts and take off the chain sprocket cover. 143BA034 KN English Disengaging the chain brake. The pitch (t) of the saw chains and chain...
Product Instruction Manual
Page 27
... both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chain saws, mopeds, etc.). Do not use in STIHL engines. Take care when handling gasoline. The machine's fuel tank and the canister in turn, increases the risk of the fuel is also important. MS 311, MS 391 25 Fuel with the skin and avoid inhaling fuel...
... both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chain saws, mopeds, etc.). Do not use in STIHL engines. Take care when handling gasoline. The machine's fuel tank and the canister in turn, increases the risk of the fuel is also important. MS 311, MS 391 25 Fuel with the skin and avoid inhaling fuel...
Product Instruction Manual
Page 32
...the engine up to the operating position when the throttle trigger is squeezed Cold start n - this position is for starting the cold engine 30 MS 311, MS 391 after starting the warm engine - When the cover plate is extremely cold (frost formation) - engine is running or can start Warm ... to operating temperature at increased idle speed (disengage chain brake!) Cover plate 2 2 1 N Insert cover plate (1) with both tabs (arrows) and fasten with the screws (2) The cover plate (special accessory) keeps out powdered or drifting snow. N if the chain saw is used, the slide must be in the...
...the engine up to the operating position when the throttle trigger is squeezed Cold start n - this position is for starting the cold engine 30 MS 311, MS 391 after starting the warm engine - When the cover plate is extremely cold (frost formation) - engine is running or can start Warm ... to operating temperature at increased idle speed (disengage chain brake!) Cover plate 2 2 1 N Insert cover plate (1) with both tabs (arrows) and fasten with the screws (2) The cover plate (special accessory) keeps out powdered or drifting snow. N if the chain saw is used, the slide must be in the...
