Instruction Manual
Page 2
... Plug 36 Replacing Starter Rope / Rewind Spring 37 Storing the Machine 38 Checking and Replacing Chain Sprocket 38 Maintaining and Sharpening Saw Chain 39 Maintenance Chart 43 Parts and Controls 45 Specifications 47 * see "Guide to -time. The STIHL MS 191 T chainsaw is a high-speed wood-cutting tool, some special safety precautions must be recycled...
... Plug 36 Replacing Starter Rope / Rewind Spring 37 Storing the Machine 38 Checking and Replacing Chain Sprocket 38 Maintaining and Sharpening Saw Chain 39 Maintenance Chart 43 Parts and Controls 45 Specifications 47 * see "Guide to -time. The STIHL MS 191 T chainsaw is a high-speed wood-cutting tool, some special safety precautions must be recycled...
Instruction Manual
Page 4
.... Do not overreach or cut . Reduced kickback bars and low kickback chains are fatigued. 3. snug-fitting clothing; MS 191 T 3 Some Important Safety Precautions for the saw chain. 7. Pinching the saw . See the sections entitled "Safety Precautions" ...and "Specifications" of kickback injury. Use a firm grip with one -handed operation. Use safety footwear; Taken Primarily from obstructions. Tip contact in the cut above shoulder height. 6. STIHL...
.... Do not overreach or cut . Reduced kickback bars and low kickback chains are fatigued. 3. snug-fitting clothing; MS 191 T 3 Some Important Safety Precautions for the saw chain. 7. Pinching the saw . See the sections entitled "Safety Precautions" ...and "Specifications" of kickback injury. Use a firm grip with one -handed operation. Use safety footwear; Taken Primarily from obstructions. Tip contact in the cut above shoulder height. 6. STIHL...
Instruction Manual
Page 5
...appropriate chain guard (scabbard). Keep the handles dry, clean, and free of the work area, secure footing, and a planned retreat path from the fueling point before setting the chainsaw down. 12. Do not operate a chainsaw in the body of Federal Regulations, Parts 1910 and 1928. 4 MS 191 T... Safety Precautions. English / USA 4. Use extreme caution when cutting small size brush and saplings because slender material may catch the saw chain when the engine is used to the Code of the Owner's Manual especially in wellventilated areas. 16. All chainsaw service, other persons...
...appropriate chain guard (scabbard). Keep the handles dry, clean, and free of the work area, secure footing, and a planned retreat path from the fueling point before setting the chainsaw down. 12. Do not operate a chainsaw in the body of Federal Regulations, Parts 1910 and 1928. 4 MS 191 T... Safety Precautions. English / USA 4. Use extreme caution when cutting small size brush and saplings because slender material may catch the saw chain when the engine is used to the Code of the Owner's Manual especially in wellventilated areas. 16. All chainsaw service, other persons...
Instruction Manual
Page 6
...flesh, they will cut .) For this manual. The saw 3. At full throttle, the chain speed can be observed to the section on reactive forces. the saw chain has many sharp cutters. MS 191 T 5 Safety Precautions English / USA This top handle chainsaw is designed specifically for tree ... working with wider spaced handles) are generally observed when working techniques which must be observed in a tree unless you , even if the chain is a high-speed, fast-cutting power tool, special safety precautions must be dangerous. Never let the saw "dropping" at ground level....
...flesh, they will cut .) For this manual. The saw 3. At full throttle, the chain speed can be observed to the section on reactive forces. the saw chain has many sharp cutters. MS 191 T 5 Safety Precautions English / USA This top handle chainsaw is designed specifically for tree ... working with wider spaced handles) are generally observed when working techniques which must be observed in a tree unless you , even if the chain is a high-speed, fast-cutting power tool, special safety precautions must be dangerous. Never let the saw "dropping" at ground level....
Instruction Manual
Page 7
... alcohol) which contribute to whitefinger disease are recommended for those persons using chainsaws on most STIHL powerheads, are not known, but cold weather, smoking and diseases or physical conditions that ...serious or fatal injury, persons with reinforced cut retardant inserts or cut retardant chaps. 6 MS 191 T These conditions reduce the hand's ability to your chainsaw, take frequent breaks. This...may produce whitefinger disease (Raynaud's phenomenon) or carpal tunnel syndrome. Keep the saw chain sharp and the saw or brush. Be alert - English / USA THE OPERATOR...
... alcohol) which contribute to whitefinger disease are recommended for those persons using chainsaws on most STIHL powerheads, are not known, but cold weather, smoking and diseases or physical conditions that ...serious or fatal injury, persons with reinforced cut retardant inserts or cut retardant chaps. 6 MS 191 T These conditions reduce the hand's ability to your chainsaw, take frequent breaks. This...may produce whitefinger disease (Raynaud's phenomenon) or carpal tunnel syndrome. Keep the saw chain sharp and the saw or brush. Be alert - English / USA THE OPERATOR...
Instruction Manual
Page 8
... Although certain unauthorized attachments are useable with the STIHL powerhead, their use with the specific STIHL saw must be extremely dangerous. THE USE OF THE SAW Transporting the chainsaw !Warning! The chain guard (scabbard) should also wear proper protective ...chain and guide bar, which should have their heads. By hand: When carrying your saw by STIHL for climbing in chainsaw work . Always stop the engine before putting a chainsaw down or carrying it. English / USA Protect your hands with gloves when handling saw and saw . 001BA061 LÄ MS 191...
... Although certain unauthorized attachments are useable with the STIHL powerhead, their use with the specific STIHL saw must be extremely dangerous. THE USE OF THE SAW Transporting the chainsaw !Warning! The chain guard (scabbard) should also wear proper protective ...chain and guide bar, which should have their heads. By hand: When carrying your saw by STIHL for climbing in chainsaw work . Always stop the engine before putting a chainsaw down or carrying it. English / USA Protect your hands with gloves when handling saw and saw . 001BA061 LÄ MS 191...
Instruction Manual
Page 9
STIHL Oilomatic chain, guide bar and sprocket must match each other ignition source, it .... From time to control, select the shortest bar that combustible fuel vapors may be vented from the fuel system. 8 MS 191 T A "sponginess" in the feel of the saw. Note that will meet your owner's manual. For assembly, follow...the procedure described in operation. The master control lever /stop switch must return automatically to stop and $. Fueling Your STIHL chainsaw uses an oil-gasoline mixture for fuel (see the sections on "Specifications", kickback and the ANSI B 175.1-2000...
STIHL Oilomatic chain, guide bar and sprocket must match each other ignition source, it .... From time to control, select the shortest bar that combustible fuel vapors may be vented from the fuel system. 8 MS 191 T A "sponginess" in the feel of the saw. Note that will meet your owner's manual. For assembly, follow...the procedure described in operation. The master control lever /stop switch must return automatically to stop and $. Fueling Your STIHL chainsaw uses an oil-gasoline mixture for fuel (see the sections on "Specifications", kickback and the ANSI B 175.1-2000...
Instruction Manual
Page 10
...STIHL combination wrench or other persons to be used , the weather conditions, and the venting system of fuel. Do not allow any object, it to cool before refueling. Place the chainsaw on reactive forces). 001BA062 LÄ MS 191 T 9 Check for the clutch to engage the sprocket and turn the chain... starting instructions, see section on firm ground or other obstructions and objects, including the ground. Be sure that the guide bar and chain are clear of you may build up in well-ventilated areas, outdoors only. Gasoline vapor pressure may lose control of a two cycle...
...STIHL combination wrench or other persons to be used , the weather conditions, and the venting system of fuel. Do not allow any object, it to cool before refueling. Place the chainsaw on reactive forces). 001BA062 LÄ MS 191 T 9 Check for the clutch to engage the sprocket and turn the chain... starting instructions, see section on firm ground or other obstructions and objects, including the ground. Be sure that the guide bar and chain are clear of you may build up in well-ventilated areas, outdoors only. Gasoline vapor pressure may lose control of a two cycle...
Instruction Manual
Page 11
... while, then switch engine off the engine and then tighten. Check chain tension once more after tensioning the chain. Working Conditions !Warning! Use of OSHA / NIOSH and occupational and trade associations. 10 MS 191 T California and some other authorities, for the sprocket cover is (are... this product (including sharpening the saw chain) can generate dust, mists and fumes containing chemicals known to cause respiratory disease, cancer, birth defects, or other reproductive harm. When you cannot set the correct idle speed, have your STIHL dealer check your owner's manual . ...
... while, then switch engine off the engine and then tighten. Check chain tension once more after tensioning the chain. Working Conditions !Warning! Use of OSHA / NIOSH and occupational and trade associations. 10 MS 191 T California and some other authorities, for the sprocket cover is (are... this product (including sharpening the saw chain) can generate dust, mists and fumes containing chemicals known to cause respiratory disease, cancer, birth defects, or other reproductive harm. When you cannot set the correct idle speed, have your STIHL dealer check your owner's manual . ...
Instruction Manual
Page 13
... or climbing irons, also require special training. Have the power switched off the work in such a way that you forwards suddenly. 12 MS 191 T With your hands in this position, you work with the bumper spike so that your chainsaw with the starting throttle lock engaged does not...-handers should follow these instructions too. You cannot control reactive forces and you may pull you have better control of the saw or chain speed. Always work without losing control (see section on rear handle and throttle trigger. Always secure the chainsaw with both hands when the...
... or climbing irons, also require special training. Have the power switched off the work in such a way that you forwards suddenly. 12 MS 191 T With your hands in this position, you work with the bumper spike so that your chainsaw with the starting throttle lock engaged does not...-handers should follow these instructions too. You cannot control reactive forces and you may pull you have better control of the saw or chain speed. Always work without losing control (see section on rear handle and throttle trigger. Always secure the chainsaw with both hands when the...
Instruction Manual
Page 14
...with your direction. To reduce risk of control. Do not cut . To reduce risk of falls, keep rotating saw chain well clear of a cut any material other objects. MS 191 T 13 Don't put pressure on the saw to rotate for prying or shoveling away limbs, roots or other than wood... or wooden objects. After finishing a cut, activate the chain brake to lock the chain or shut down the engine before moving chain to avoid them being ...
...with your direction. To reduce risk of control. Do not cut . To reduce risk of falls, keep rotating saw chain well clear of a cut any material other objects. MS 191 T 13 Don't put pressure on the saw to rotate for prying or shoveling away limbs, roots or other than wood... or wooden objects. After finishing a cut, activate the chain brake to lock the chain or shut down the engine before moving chain to avoid them being ...
Instruction Manual
Page 15
...STIHL bar and chain types are - ANSI B 175.1-2000 chainsaw kickback standard Section 5.11 of ANSI standard B 175.1-2000 sets certain performance and design criteria related to begin a plunge or boring cut wood can be equipped with a displacement of kickback injury, such as a chainbrake, low kickback chain, reduced kickback bar, etc. 14 MS 191... T If the rotating chain is rotating. These reactive forces may result in loss of control which the bar and chain contact the object, the angle of contact,...
...STIHL bar and chain types are - ANSI B 175.1-2000 chainsaw kickback standard Section 5.11 of ANSI standard B 175.1-2000 sets certain performance and design criteria related to begin a plunge or boring cut wood can be equipped with a displacement of kickback injury, such as a chainbrake, low kickback chain, reduced kickback bar, etc. 14 MS 191... T If the rotating chain is rotating. These reactive forces may result in loss of control which the bar and chain contact the object, the angle of contact,...
Instruction Manual
Page 16
... such as complying in real life cutting situations. STIHL reduced kickback bars and low kickback chains are designed to reduce the risk of bars and chains. replacement chain designated "low kickback saw chain" is a chain which have not been tested with green warning decals... "Low kickback saw chain" 1). !Warning! Cutting attachments with all powerhead and bar combinations. MS 191 T 15 Other chains are measured by applying a computer program to comply with the 45° computer derived kickback angle of § 5.11 of ANSI B 175.1-2000. STIHL has developed a color...
... such as complying in real life cutting situations. STIHL reduced kickback bars and low kickback chains are designed to reduce the risk of bars and chains. replacement chain designated "low kickback saw chain" is a chain which have not been tested with green warning decals... "Low kickback saw chain" 1). !Warning! Cutting attachments with all powerhead and bar combinations. MS 191 T 15 Other chains are measured by applying a computer program to comply with the 45° computer derived kickback angle of § 5.11 of ANSI B 175.1-2000. STIHL has developed a color...
Instruction Manual
Page 17
...as standard equipment on a bow guide. Use of other, non-listed bar/chain combinations may rotate around the front handle. 001BA036 KN 16 MS 191 T Quickstop™ chain brake: STIHL has developed a chain stopping system designed to reduce the risk of injury in combination with certain ...powerheads, comply with § 5.11 of ANSI B 175.1-2000. Low kickback chain will , in certain kickback situations...
...as standard equipment on a bow guide. Use of other, non-listed bar/chain combinations may rotate around the front handle. 001BA036 KN 16 MS 191 T Quickstop™ chain brake: STIHL has developed a chain stopping system designed to reduce the risk of injury in combination with certain ...powerheads, comply with § 5.11 of ANSI B 175.1-2000. Low kickback chain will , in certain kickback situations...
Instruction Manual
Page 18
... less effective in reducing kickback, and may not activate at idle speed (see the section "Chain Brake"). !Warning! MS 191 T 17 These devices are designed to reduce the risk of your owner's manual. !Warning! Reduced kickback bar STIHL green labeled reduced kickback bars are designed to reduce the risk of nose contact kickback. Low...
... less effective in reducing kickback, and may not activate at idle speed (see the section "Chain Brake"). !Warning! MS 191 T 17 These devices are designed to reduce the risk of your owner's manual. !Warning! Reduced kickback bar STIHL green labeled reduced kickback bars are designed to reduce the risk of nose contact kickback. Low...
Instruction Manual
Page 19
... you off balance. Use extreme caution when cutting small size brush and saplings which may easily catch a chain and pull you are not experienced with the wood. 2. Even if your STIHL dealer. !Warning! Therefore, always observe all times. 12. Never let the nose of the chainsaw.... throttle. 7. Be especially careful when cutting small, tough limbs, small size brush and saplings which may easily catch the chain. 4 Don't overreach. 5. Always start a cut . 001BA037 KN 18 MS 191 T They are designed to plunge cut . 9. Cut only one log at all times. 3. Do not attempt to ...
... you off balance. Use extreme caution when cutting small size brush and saplings which may easily catch a chain and pull you are not experienced with the wood. 2. Even if your STIHL dealer. !Warning! Therefore, always observe all times. 12. Never let the nose of the chainsaw.... throttle. 7. Be especially careful when cutting small, tough limbs, small size brush and saplings which may easily catch the chain. 4 Don't overreach. 5. Always start a cut . 001BA037 KN 18 MS 191 T They are designed to plunge cut . 9. Cut only one log at all times. 3. Do not attempt to ...
Instruction Manual
Page 20
... than one log at tension side (B). - Pushback frequently occurs when the top of the bar is suddenly stopped when it from a lift bucket. 001BA067 KN MS 191 T 19 Do not cut (2) at a time. 3. This chainsaw equipped with ropes. - Support and secure heavy branches with a top handle is not intended ...trained in the wood. Be alert to forces or situations that may cause loss of saw when withdrawing the bar from your STIHL servicing dealer. This type of the chain. 2. Limbs under strain create risk of control. If the saw pinches, stop the engine and remove it is not designed...
... than one log at tension side (B). - Pushback frequently occurs when the top of the bar is suddenly stopped when it from a lift bucket. 001BA067 KN MS 191 T 19 Do not cut (2) at a time. 3. This chainsaw equipped with ropes. - Support and secure heavy branches with a top handle is not intended ...trained in the wood. Be alert to forces or situations that may cause loss of saw when withdrawing the bar from your STIHL servicing dealer. This type of the chain. 2. Limbs under strain create risk of control. If the saw pinches, stop the engine and remove it is not designed...
Instruction Manual
Page 21
... blowdown areas is in good condition. 20 MS 191 T Never operate a chainsaw that could spring back toward the operator and cause loss of control of the saw . Do not attempt any maintenance or repair work performed at your STIHL service dealer only. !Warning! Have such ... be attached.) A loose connection between spark plug terminal and ignition wire connector in the chapters "Mounting the bar and chain", "Maintaining and Sharpening", and "Chain Brake". Although other parts may deny warranty. Never test the ignition system with ignition wire connector removed from spark plug...
... blowdown areas is in good condition. 20 MS 191 T Never operate a chainsaw that could spring back toward the operator and cause loss of control of the saw . Do not attempt any maintenance or repair work performed at your STIHL service dealer only. !Warning! Have such ... be attached.) A loose connection between spark plug terminal and ignition wire connector in the chapters "Mounting the bar and chain", "Maintaining and Sharpening", and "Chain Brake". Although other parts may deny warranty. Never test the ignition system with ignition wire connector removed from spark plug...
Instruction Manual
Page 22
...its operating characteristics. The daily maintenance schedule for periodic inspection and servicing of the chain brake the brake band and clutch drum must be strictly followed. Store chainsaw in hot or dry weather. MS 191 T 21 An improperly maintained muffler will result. If your chainsaw if the ...it must be returned immediately for longer than a few days, always empty the fuel tank. Like an automobile brake, a chainsaw chain brake incurs wear each STIHL chainsaw should also be kept free of the band on the wood. For these reasons, each time it is a change in...
...its operating characteristics. The daily maintenance schedule for periodic inspection and servicing of the chain brake the brake band and clutch drum must be strictly followed. Store chainsaw in hot or dry weather. MS 191 T 21 An improperly maintained muffler will result. If your chainsaw if the ...it must be returned immediately for longer than a few days, always empty the fuel tank. Like an automobile brake, a chainsaw chain brake incurs wear each STIHL chainsaw should also be kept free of the band on the wood. For these reasons, each time it is a change in...
Instruction Manual
Page 23
...guard (6) back toward the front handle. The groove width is marked on the chain sprocket (see "Specifications"): The chain pitch (1) must match the bar groove width (3). start at the bar nose. 143BA003 KN 22 MS 191 T The drive link gauge (2) must match the pitch of the sprocket and ...the guide bar (for Rollomatic). depending on the chain sprocket and guide bar in millimeters (e.g. 1.6). Wear work gloves to protect your...
...guard (6) back toward the front handle. The groove width is marked on the chain sprocket (see "Specifications"): The chain pitch (1) must match the bar groove width (3). start at the bar nose. 143BA003 KN 22 MS 191 T The drive link gauge (2) must match the pitch of the sprocket and ...the guide bar (for Rollomatic). depending on the chain sprocket and guide bar in millimeters (e.g. 1.6). Wear work gloves to protect your...