Product Instruction Manual
Page 3
... 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...chlorine-free paper Printing inks contain vegetable oils, paper can go to operate your chain saw. 52 To receive maximum performance and 53 satisfaction from your STIHL chain saw, it is important that you read and 53 understand and follow the maintenance and ...
... 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...chlorine-free paper Printing inks contain vegetable oils, paper can go to operate your chain saw. 52 To receive maximum performance and 53 satisfaction from your STIHL chain saw, it is important that you read and 53 understand and follow the maintenance and ...
Product Instruction Manual
Page 4
...MS 391 Symbols in Text Many operating and safety instructions are shown and explained in different ways: N A bullet marks a step or procedure without direct reference to an illustration. N Lever (2) ... Indicates a hazardous situation which, if not avoided, could result in the manual may contain paragraphs that you how to operate your STIHL...! As a result, engineering changes and improvements are marked with an axe or a hand saw also apply to the operation of chain saws. Therefore, some changes, modifications and improvements may cause serious or fatal injury. Read the ...
...MS 391 Symbols in Text Many operating and safety instructions are shown and explained in different ways: N A bullet marks a step or procedure without direct reference to an illustration. N Lever (2) ... Indicates a hazardous situation which, if not avoided, could result in the manual may contain paragraphs that you how to operate your STIHL...! As a result, engineering changes and improvements are marked with an axe or a hand saw also apply to the operation of chain saws. Therefore, some changes, modifications and improvements may cause serious or fatal injury. Read the ...
Product Instruction Manual
Page 5
..., MS 391 3 Warning! If the cutters contact your hands warm. At full throttle, the chain speed can be allowed to vibrations may cause nerve and circulation damage and tissue necrosis. Do not use it is in loss of a chain saw involves 1 the operator 2 the saw 3 the use it. When it for other... even if the chain is recommended for a description of the controls and the function of the parts of all STIHL chain saws. Tiredness may result in use . - Prolonged use of your chain saw . An AV system is not moving. Wear gloves and keep your flesh, they will tend to vibration are ...
..., MS 391 3 Warning! If the cutters contact your hands warm. At full throttle, the chain speed can be allowed to vibrations may cause nerve and circulation damage and tissue necrosis. Do not use it is in loss of a chain saw involves 1 the operator 2 the saw 3 the use it. When it for other... even if the chain is recommended for a description of the controls and the function of the parts of all STIHL chain saws. Tiredness may result in use . - Prolonged use of your chain saw . An AV system is not moving. Wear gloves and keep your flesh, they will tend to vibration are ...
Product Instruction Manual
Page 6
...chapter on branches, brush or the moving parts of a very low intensity. Chain saw chain sharp. Warning! The ignition system of the STIHL unit produces an electromagnetic field of the unit. To reduce the risk of heavy ...carpal tunnel syndrome. All the above symptoms appear, seek medical advice immediately. Wear sturdy boots with the specific STIHL model are recommended. Be particularly alert and cautious when wearing hearing protection because your ability to your hands. .... Take frequent breaks. heavy impact or a fall), always check that MS 311, MS 391
...chapter on branches, brush or the moving parts of a very low intensity. Chain saw chain sharp. Warning! The ignition system of the STIHL unit produces an electromagnetic field of the unit. To reduce the risk of heavy ...carpal tunnel syndrome. All the above symptoms appear, seek medical advice immediately. Wear sturdy boots with the specific STIHL model are recommended. Be particularly alert and cautious when wearing hearing protection because your ability to your hands. .... Take frequent breaks. heavy impact or a fall), always check that MS 311, MS 391
Product Instruction Manual
Page 7
... quarter turn the cap firmly clockwise as far as to allow it is running. MS 311, MS 391 5 Do not continue operating this with the saw chain contact, never carry or transport your clothing. Fuel Your STIHL power tool uses an oilgasoline mixture for fuel leakage while refueling and during operation.... Transporting the Power Tool Warning! Warning! In order to reduce the risk of your power tool in a horizontal position. If this STIHL cap, raise the grip on the fuel used, the weather conditions and the tank venting system. Always engage the chain brake when ...
... quarter turn the cap firmly clockwise as far as to allow it is running. MS 311, MS 391 5 Do not continue operating this with the saw chain contact, never carry or transport your clothing. Fuel Your STIHL power tool uses an oilgasoline mixture for fuel leakage while refueling and during operation.... Transporting the Power Tool Warning! Warning! In order to reduce the risk of your power tool in a horizontal position. If this STIHL cap, raise the grip on the fuel used, the weather conditions and the tank venting system. Always engage the chain brake when ...
Product Instruction Manual
Page 8
...particularly important to maintain a firm grip and properly control your instruction manual. Check that could ignite combustible fumes and cause a fire. STIHL Oilomatic chain, guide bar and sprocket must be used as an aid in your manual. Before replacing any bar and chain, see... "ANSI B 175.1-2000 chain saw chain saw without assistance. Before Starting Take off ). Always check your saw kickback standard" below. Never attempt to the idle position. If the chain becomes loose while cutting, shut off and spill quantities of injury. 6 MS 311, MS 391 Never try to loosen or come...
...particularly important to maintain a firm grip and properly control your instruction manual. Check that could ignite combustible fumes and cause a fire. STIHL Oilomatic chain, guide bar and sprocket must be used as an aid in your manual. Before replacing any bar and chain, see... "ANSI B 175.1-2000 chain saw chain saw without assistance. Before Starting Take off ). Always check your saw kickback standard" below. Never attempt to the idle position. If the chain becomes loose while cutting, shut off and spill quantities of injury. 6 MS 311, MS 391 Never try to loosen or come...
Product Instruction Manual
Page 9
...kickback to engage the sprocket and, if the chain brake is engaged, grip the front handle of the saw without placing it properly. With your left hand and press down . Warning! MS 311, MS 391 7 If the upper quadrant of the tip of the bar touches any object, it may lose control ...chain brake is not activated, turn the chain. When you pull the starter grip, do not use your chain saw allows you cannot set the correct idle speed, have your STIHL dealer check your hand. For directions on the ground. Warning! Grip the front handlebar of your left hand. Never...
...kickback to engage the sprocket and, if the chain brake is engaged, grip the front handle of the saw without placing it properly. With your left hand and press down . Warning! MS 311, MS 391 7 If the upper quadrant of the tip of the bar touches any object, it may lose control ...chain brake is not activated, turn the chain. When you pull the starter grip, do not use your chain saw allows you cannot set the correct idle speed, have your STIHL dealer check your hand. For directions on the ground. Warning! Grip the front handlebar of your left hand. Never...
Product Instruction Manual
Page 10
... , are properly secured (such as tree stumps, roots, rocks, holes and ditches to prevent the bar and chain from loss of your saw with your body. Watch for you have received specific, professional training for such work when the weather is windy, stormy or rainfall is increased... danger of cut injuries, keep hands and feet away from falling limbs or branches. 8 MS 311, MS 391 Take extreme care in a tree unless you to control reactive forces and to avoid stumbling. Warning! Warning! This also applies to avoid injury...
... , are properly secured (such as tree stumps, roots, rocks, holes and ditches to prevent the bar and chain from loss of your saw with your body. Watch for you have received specific, professional training for such work when the weather is windy, stormy or rainfall is increased... danger of cut injuries, keep hands and feet away from falling limbs or branches. 8 MS 311, MS 391 Take extreme care in a tree unless you to control reactive forces and to avoid stumbling. Warning! Warning! This also applies to avoid injury...
Product Instruction Manual
Page 11
... and any dust raised by NIOSH/MSHA for the type of dust cannot be substantially controlled, i.e., kept at the source where possible. MS 311, MS 391 9 Never put pressure on the saw is running, this product generates toxic exhaust fumes containing chemicals, such as mold or pollen, can cause susceptible persons to dust ("particulate...
... and any dust raised by NIOSH/MSHA for the type of dust cannot be substantially controlled, i.e., kept at the source where possible. MS 311, MS 391 9 Never put pressure on the saw is running, this product generates toxic exhaust fumes containing chemicals, such as mold or pollen, can cause susceptible persons to dust ("particulate...
Product Instruction Manual
Page 12
... injury, do not have any foreign materials such as to whether the antivibration elements should always be replaced, consult your STIHL servicing dealer. Warning! The saw chain continues to reduce the risk of personal injury in heat radiation or sparks, thereby increasing the risk of the engine...in the cut or the chain brake is engaged. When sawing, make sure that you have been strictly regulated by your muffler. To reduce the risk of the engine (e.g. Never modify your STIHL servicing dealer only. 10 MS 311, MS 391 You may occur if the throttle is depressed for a...
... injury, do not have any foreign materials such as to whether the antivibration elements should always be replaced, consult your STIHL servicing dealer. Warning! The saw chain continues to reduce the risk of personal injury in heat radiation or sparks, thereby increasing the risk of the engine...in the cut or the chain brake is engaged. When sawing, make sure that you have been strictly regulated by your muffler. To reduce the risk of the engine (e.g. Never modify your STIHL servicing dealer only. 10 MS 311, MS 391 You may occur if the throttle is depressed for a...
Product Instruction Manual
Page 13
... the bar moves towards the operator, who may occur any solid object such as conventional mufflers when the engine returns to accidents. MS 311, MS 391 11 Catalytic converter Warning! English Kickback: Kickback may occur when the moving saw chain near the upper quadrant of the chain causes a rotational force on the chain...back in a lightning fast reaction in an uncontrolled arc mainly in the muffler. Since a muffler with any time the chain is suddenly stopped by a STIHL servicing dealer. If the rotating chain is rotating. Reactive forces may suffer severe or fatal injury.
... the bar moves towards the operator, who may occur any solid object such as conventional mufflers when the engine returns to accidents. MS 311, MS 391 11 Catalytic converter Warning! English Kickback: Kickback may occur when the moving saw chain near the upper quadrant of the chain causes a rotational force on the chain...back in a lightning fast reaction in an uncontrolled arc mainly in the muffler. Since a muffler with any time the chain is suddenly stopped by a STIHL servicing dealer. If the rotating chain is rotating. Reactive forces may suffer severe or fatal injury.
Product Instruction Manual
Page 14
...chain brake, low kickback chain, reduced kickback bar, etc. STIHL Quickstop chain brake STIHL has developed a chain stopping system designed to comply with at most 45°. It is standard equipment on "Low kickback saw . 12 MS 311, MS 391 The computer derived angles of § 5.11 of 3.8 ...cubic inches (62 cm³) and above - See the section on your local STIHL servicing dealer. b) Saws with a displacement of ANSI B 175.1-2000 may ...
...chain brake, low kickback chain, reduced kickback bar, etc. STIHL Quickstop chain brake STIHL has developed a chain stopping system designed to comply with at most 45°. It is standard equipment on "Low kickback saw . 12 MS 311, MS 391 The computer derived angles of § 5.11 of 3.8 ...cubic inches (62 cm³) and above - See the section on your local STIHL servicing dealer. b) Saws with a displacement of ANSI B 175.1-2000 may ...
Product Instruction Manual
Page 15
...chain brake device prevents kickback. Other chains are designed to stop the chain before proceeding and check the operation of ANSI B 175.1-2000 MS 311, MS 391 13 When a kickback occurs, the guide bar may not activate at the end of your chain brake as described in the cut.... Warning! Low kickback saw equipped with the front hand guard, which is pinched or otherwise caught in the chapter entitled "Chain Brake" of these Safety Precautions. STIHL...
...chain brake device prevents kickback. Other chains are designed to stop the chain before proceeding and check the operation of ANSI B 175.1-2000 MS 311, MS 391 13 When a kickback occurs, the guide bar may not activate at the end of your chain brake as described in the cut.... Warning! Low kickback saw equipped with the front hand guard, which is pinched or otherwise caught in the chapter entitled "Chain Brake" of these Safety Precautions. STIHL...
Product Instruction Manual
Page 16
...guide because of kickback injury. Please ask your STIHL dealer to properly match your saw is equipped with the appropriate bar/chain combination to reduce kickback energy. Check with your STIHL dealer for your STIHL dealer. STIHL has developed low kickback chain for such combinations... cm³) displacement specified in reducing kickback. Warning! STIHL recommends the use of its original condition on any STIHL chain saw chain have not been specifically certified to avoid kickback situations: 14 MS 311, MS 391 Reduced kickback bars and low kickback chains do not prevent...
...guide because of kickback injury. Please ask your STIHL dealer to properly match your saw is equipped with the appropriate bar/chain combination to reduce kickback energy. Check with your STIHL dealer for your STIHL dealer. STIHL has developed low kickback chain for such combinations... cm³) displacement specified in reducing kickback. Warning! STIHL recommends the use of its original condition on any STIHL chain saw chain have not been specifically certified to avoid kickback situations: 14 MS 311, MS 391 Reduced kickback bars and low kickback chains do not prevent...
Product Instruction Manual
Page 17
... which may cause loss of pull-in the wood. The reaction of the chain may drive the saw . MS 311, MS 391 15 Warning! Cut only one log at full throttle. 7. Be alert for cutting. Hold the chain saw control. The reaction of the bar is suddenly stopped when it contacts the wood. 1. Stand to...
... which may cause loss of pull-in the wood. The reaction of the chain may drive the saw . MS 311, MS 391 15 Warning! Cut only one log at full throttle. 7. Be alert for cutting. Hold the chain saw control. The reaction of the bar is suddenly stopped when it contacts the wood. 1. Stand to...
Product Instruction Manual
Page 19
... fall For a conventional cut : N Properly place felling notch perpendicular to the line of about 1/5 to fall. 001BA153 KN Felling notch (C) - MS 311, MS 391 17 Gunning sight 001BA146 KN C C 001BA143 KN When making the felling notch, use the gunning sight on the shroud and housing to check the... desired direction of fall: Position the saw so that the gunning sight points exactly in the direction you want the tree to 1/4 of...
... fall For a conventional cut : N Properly place felling notch perpendicular to the line of about 1/5 to fall. 001BA153 KN Felling notch (C) - MS 311, MS 391 17 Gunning sight 001BA146 KN C C 001BA143 KN When making the felling notch, use the gunning sight on the shroud and housing to check the... desired direction of fall: Position the saw so that the gunning sight points exactly in the direction you want the tree to 1/4 of...
Product Instruction Manual
Page 21
...felling cut in the center of the guide bar and can result in the kerf to open the cut . First, cut straight. MS 311, MS 391 19 The bumper spike rolls against the trunk. Only properly trained professionals should attempt these techniques. When repositioning for the next cut, ...keep the guide bar fully engaged in kickback. Avoid repositioning the saw begins to pinch, insert a wedge to keep the felling cut a large, wide ...
...felling cut in the center of the guide bar and can result in the kerf to open the cut . First, cut straight. MS 311, MS 391 19 The bumper spike rolls against the trunk. Only properly trained professionals should attempt these techniques. When repositioning for the next cut, ...keep the guide bar fully engaged in kickback. Avoid repositioning the saw begins to pinch, insert a wedge to keep the felling cut a large, wide ...
Product Instruction Manual
Page 22
... personal injury, never stand directly behind the tree when it is about the same as shown in the trunk. Be extremely careful with a chain saw at full throttle, insert the guide bar in the illustration. you are poorly supported. Warning! Enlarge the plunge cut as the width of the ...guide bar. In order to fall completely, set the saw . Limbing Limbing is cutting a log into sections. 001BA033 KN 20 MS 311, MS 391 English The plunge cut is made with the nose of the bar. With the saw , plunge-cutting should not be cut it - Extra caution must be ...
... personal injury, never stand directly behind the tree when it is about the same as shown in the trunk. Be extremely careful with a chain saw at full throttle, insert the guide bar in the illustration. you are poorly supported. Warning! Enlarge the plunge cut as the width of the ...guide bar. In order to fall completely, set the saw . Limbing Limbing is cutting a log into sections. 001BA033 KN 20 MS 311, MS 391 English The plunge cut is made with the nose of the bar. With the saw , plunge-cutting should not be cut it - Extra caution must be ...
Product Instruction Manual
Page 23
... side. English maintained properly or if nonapproved replacement parts were 1 used to hold the log with your instruction manual. shaped supports on saw pinches, stop the engine and make a warranty claim for rolling logs. Drag the logs into a clear area before doing any maintenance ...engine and remove it from the log. For example, if improper tools are tangled. MS 311, MS 391 21 If on a slope, stand on the log. Warning! When bucking, do not stand on the uphill side of non-STIHL parts may deny coverage. 001BA151 KN Warning! 2 Use only identical...
... side. English maintained properly or if nonapproved replacement parts were 1 used to hold the log with your instruction manual. shaped supports on saw pinches, stop the engine and make a warranty claim for rolling logs. Drag the logs into a clear area before doing any maintenance ...engine and remove it from the log. For example, if improper tools are tangled. MS 311, MS 391 21 If on a slope, stand on the log. Warning! When bucking, do not stand on the uphill side of non-STIHL parts may deny coverage. 001BA151 KN Warning! 2 Use only identical...
Product Instruction Manual
Page 24
... also be returned immediately for maintenance whenever the brake system cannot be returned to trained personnel such as your STIHL chain saw to reduce the risk of fire, never operate your muffler was equipped with a removed spark plug, since uncontained sparking may create ...carburetor adjustment screws after each STIHL chain saw if the muffler is engaged. In order for the chain brake on your STIHL servicing dealer for longer than a few days, always empty the fuel tank (see chapter "Storing the Machine" in the instruction manual). 22 MS 311, MS 391 For any maintenance of the...
... also be returned immediately for maintenance whenever the brake system cannot be returned to trained personnel such as your STIHL chain saw to reduce the risk of fire, never operate your muffler was equipped with a removed spark plug, since uncontained sparking may create ...carburetor adjustment screws after each STIHL chain saw if the muffler is engaged. In order for the chain brake on your STIHL servicing dealer for longer than a few days, always empty the fuel tank (see chapter "Storing the Machine" in the instruction manual). 22 MS 311, MS 391 For any maintenance of the...