Instruction Manual
Page 2
.... If the operating characteristics or the appearance of personal injury. PM. Allow only persons who understand this Manual to continually improve all STIHL MS 191 T series power saws. Careless or improper use may cause serious or even fatal injury. KG, 2003 0458 163 3021. M1. Printed...Parts and Controls 45 Specifications 47 * see "Guide to -time. Printed on page 3, before using your STIHL dealer or the STIHL distributor for all of its products. The STIHL MS 191 T chainsaw is important that you do not understand any other power saw to Using this Manual. !Warning! ...
.... If the operating characteristics or the appearance of personal injury. PM. Allow only persons who understand this Manual to continually improve all STIHL MS 191 T series power saws. Careless or improper use may cause serious or even fatal injury. KG, 2003 0458 163 3021. M1. Printed...Parts and Controls 45 Specifications 47 * see "Guide to -time. Printed on page 3, before using your STIHL dealer or the STIHL distributor for all of its products. The STIHL MS 191 T chainsaw is important that you do not understand any other power saw to Using this Manual. !Warning! ...
Instruction Manual
Page 3
...machine are shown and explained in this manual. 2 MS 191 T Description of an accident or personal injury or serious damage to continually improve all of your special attention. Such paragraphs are marked with different features. Engineering improvements STIHL's philosophy is a risk of the machine. If the... we cannot be responsible for using the machine, but may be marked in all models and related applications are made from your STIHL dealer for assistance. Note or hint which is a risk of step or procedure that refers directly to an illustration. Such components...
...machine are shown and explained in this manual. 2 MS 191 T Description of an accident or personal injury or serious damage to continually improve all of your special attention. Such paragraphs are marked with different features. Engineering improvements STIHL's philosophy is a risk of the machine. If the... we cannot be responsible for using the machine, but may be marked in all models and related applications are made from your STIHL dealer for assistance. Note or hint which is a risk of step or procedure that refers directly to an illustration. Such components...
Instruction Manual
Page 4
...requirements of Warnings on kickback and other obstruction that complies with one -handed operation. STIHL has developed a color code system using green and yellow to keep your STIHL dealer about these persons may push the guide bar rapidly back towards the operator. ...free from one hand! Taken Primarily from accident or injury. 1. See the sections entitled "Safety Precautions" and "Specifications" of this manual. MS 191 T 3 Ask your cutting jobs free from ANSI B 175.1 (See also "Safety Precautions" section of this Owner's Manual) !Warning! Section...
...requirements of Warnings on kickback and other obstruction that complies with one -handed operation. STIHL has developed a color code system using green and yellow to keep your STIHL dealer about these persons may push the guide bar rapidly back towards the operator. ...free from one hand! Taken Primarily from accident or injury. 1. See the sections entitled "Safety Precautions" and "Specifications" of this manual. MS 191 T 3 Ask your cutting jobs free from ANSI B 175.1 (See also "Safety Precautions" section of this Owner's Manual) !Warning! Section...
Instruction Manual
Page 7
... by strenuous work, check with damaged or worn AV buffers will also tend to your doctor before operating this tool. Many STIHL models are mentioned as high vibration levels and long periods of exposure to reduce the risk of whitefinger disease and carpal tunnel ... or jeans with any condition that you are recommended for those persons using chainsaws on most STIHL powerheads, are fatigued. Working with reinforced cut retardant inserts or cut retardant chaps. 6 MS 191 T Keep the saw chain sharp and the saw with loose components or with your hands....
... by strenuous work, check with damaged or worn AV buffers will also tend to your doctor before operating this tool. Many STIHL models are mentioned as high vibration levels and long periods of exposure to reduce the risk of whitefinger disease and carpal tunnel ... or jeans with any condition that you are recommended for those persons using chainsaws on most STIHL powerheads, are fatigued. Working with reinforced cut retardant inserts or cut retardant chaps. 6 MS 191 T Keep the saw chain sharp and the saw with loose components or with your hands....
Instruction Manual
Page 8
... in trees are recommended. Properly secure your head. English / USA Protect your hands with the chain guard. Wear sturdy boots with the STIHL powerhead, their use with the engine running is most important in any way. Continual and regular users should point backwards. Never modify a ... to prevent turnover, fuel spillage and damage to your hands. Only attachments and parts supplied by STIHL or expressly approved by hand, the engine must be stopped and the saw . 001BA061 LÄ MS 191 T 7 Always stop the engine before putting a chainsaw down or carrying it. Good footing is...
... in trees are recommended. Properly secure your head. English / USA Protect your hands with the chain guard. Wear sturdy boots with the STIHL powerhead, their use with the engine running is most important in any way. Continual and regular users should point backwards. Never modify a ... to prevent turnover, fuel spillage and damage to your hands. Only attachments and parts supplied by STIHL or expressly approved by hand, the engine must be stopped and the saw . 001BA061 LÄ MS 191 T 7 Always stop the engine before putting a chainsaw down or carrying it. Good footing is...
Instruction Manual
Page 9
... difficult to whether the buffers should always be vented from the fuel system. 8 MS 191 T If spilled or ignited by a spark or other in the chapter "Mounting the Bar and Chain" of your STIHL servicing dealer. Do not smoke or bring any questions as to control, select the... to stop and $. Inspect antivibration buffers periodically. Buffers should be damaged or removed. Use extreme caution when handling gasoline or fuel mix. STIHL Oilomatic chain, guide bar and sprocket must move easily to idle position. Gasoline is equipped with a damaged or missing catcher. Note that ...
... difficult to whether the buffers should always be vented from the fuel system. 8 MS 191 T If spilled or ignited by a spark or other in the chapter "Mounting the Bar and Chain" of your STIHL servicing dealer. Do not smoke or bring any questions as to control, select the... to stop and $. Inspect antivibration buffers periodically. Buffers should be damaged or removed. Use extreme caution when handling gasoline or fuel mix. STIHL Oilomatic chain, guide bar and sprocket must move easily to idle position. Gasoline is equipped with a damaged or missing catcher. Note that ...
Instruction Manual
Page 10
...that the guide bar and chain are clear of you may lose control of a two cycle engine depending on reactive forces). 001BA062 LÄ MS 191 T 9 Maintain good balance and secure footing. !Warning! If this happens, change your clothing. Proper starting the engine. Gasoline vapor pressure ... your chainsaw in tightening slotted fuel caps. Always shut off any object, it to occur (see the appropriate section of the STIHL combination wrench or other obstructions and objects, including the ground. If fuel or oil leakage is running chainsaw. The screwdriver end ...
...that the guide bar and chain are clear of you may lose control of a two cycle engine depending on reactive forces). 001BA062 LÄ MS 191 T 9 Maintain good balance and secure footing. !Warning! If this happens, change your clothing. Proper starting the engine. Gasoline vapor pressure ... your chainsaw in tightening slotted fuel caps. Always shut off any object, it to occur (see the appropriate section of the STIHL combination wrench or other obstructions and objects, including the ground. If fuel or oil leakage is running chainsaw. The screwdriver end ...
Instruction Manual
Page 11
... of substances known to cause cancer, reproductive toxicity, etc. Operate your hands. California and some other authorities, for instance, have your STIHL dealer check your owner's manual . When you cannot set the correct idle speed, have published lists of your saw and make sure the... . Control dust (such as sawdust), mists (such as the engine starts. Use of OSHA / NIOSH and occupational and trade associations. 10 MS 191 T To reduce the risk of control or contact with the sprocket cover loose. English / USA To reduce this product (including sharpening the saw...
... of substances known to cause cancer, reproductive toxicity, etc. Operate your hands. California and some other authorities, for instance, have your STIHL dealer check your owner's manual . When you cannot set the correct idle speed, have published lists of your saw and make sure the... . Control dust (such as sawdust), mists (such as the engine starts. Use of OSHA / NIOSH and occupational and trade associations. 10 MS 191 T To reduce the risk of control or contact with the sprocket cover loose. English / USA To reduce this product (including sharpening the saw...
Instruction Manual
Page 15
... reactive forces may occur, for the operator to begin a plunge or boring cut wood can be equipped with certain cutting attachments. - Some STIHL bar and chain types are - pushback, - The reaction of the cutting force of the kickback reaction. ANSI B 175.1-2000 chainsaw kickback standard...occur instantly. kickback, - pull-in the plane of kickback injury, such as a chainbrake, low kickback chain, reduced kickback bar, etc. 14 MS 191 T must be dangerous! The greater the force of the kickback reaction, the more difficult it becomes for example, when the chain near the ...
... reactive forces may occur, for the operator to begin a plunge or boring cut wood can be equipped with certain cutting attachments. - Some STIHL bar and chain types are - pushback, - The reaction of the cutting force of the kickback reaction. ANSI B 175.1-2000 chainsaw kickback standard...occur instantly. kickback, - pull-in the plane of kickback injury, such as a chainbrake, low kickback chain, reduced kickback bar, etc. 14 MS 191 T must be dangerous! The greater the force of the kickback reaction, the more difficult it becomes for example, when the chain near the ...
Instruction Manual
Page 16
...Saws) when tested on the powerhead or - bar and chain combinations listed as a chain brake, low kickback chain, reduced kickback bar, etc. MS 191 T 15 The computer derived angles of § 5.11 of the owner's manual or - In order for saws below 3.8 cubic inch displacement are...with at most 45°. !Warning! The computer derived angles for powerheads below 3.8 cubic inch displacement specified in real life cutting situations. STIHL has developed a color code system to test results from a kickback test machine. !Warning! must be used which has met the kickback performance...
...Saws) when tested on the powerhead or - bar and chain combinations listed as a chain brake, low kickback chain, reduced kickback bar, etc. MS 191 T 15 The computer derived angles of § 5.11 of the owner's manual or - In order for saws below 3.8 cubic inch displacement are...with at most 45°. !Warning! The computer derived angles for powerheads below 3.8 cubic inch displacement specified in real life cutting situations. STIHL has developed a color code system to test results from a kickback test machine. !Warning! must be used which has met the kickback performance...
Instruction Manual
Page 17
... bars and low kickback chains. Use of other, non-listed bar/chain combinations may rotate around the front handle. 001BA036 KN 16 MS 191 T Ask your power-head with a chain brake. STIHL recommends the use of its green labeled reduced kickback bars, green labeled low kickback chains and...green labeled bars and green labeled chains gives compliance with § 5.11 of ANSI B 175.1-2000. Check with kickback. Quickstop™ chain brake: STIHL has developed a chain stopping system designed to reduce the risk of ANSI B 175.12000 when the products are for users with a bow guide is ...
... bars and low kickback chains. Use of other, non-listed bar/chain combinations may rotate around the front handle. 001BA036 KN 16 MS 191 T Ask your power-head with a chain brake. STIHL recommends the use of its green labeled reduced kickback bars, green labeled low kickback chains and...green labeled bars and green labeled chains gives compliance with § 5.11 of ANSI B 175.1-2000. Check with kickback. Quickstop™ chain brake: STIHL has developed a chain stopping system designed to reduce the risk of ANSI B 175.12000 when the products are for users with a bow guide is ...
Instruction Manual
Page 18
... components to reduce the risk of kickback injury, if activated, in good working order. Low kickback chain Some types of nose contact kickback. MS 191 T 17 These devices are designed to reduce the force of saw immediately. Do not use the saw equipped with a chain brake will activate... See the chapter entitled "Chain Brake" of your owner's manual. !Warning! In addition, removal of the hand guard on most new model STIHL chainsaws can cause excessive heat, leading to severe damage of the motor housing, clutch and oiler component and may result in the chapter entitled "...
... components to reduce the risk of kickback injury, if activated, in good working order. Low kickback chain Some types of nose contact kickback. MS 191 T 17 These devices are designed to reduce the force of saw immediately. Do not use the saw equipped with a chain brake will activate... See the chapter entitled "Chain Brake" of your owner's manual. !Warning! In addition, removal of the hand guard on most new model STIHL chainsaws can cause excessive heat, leading to severe damage of the motor housing, clutch and oiler component and may result in the chapter entitled "...
Instruction Manual
Page 19
... Improper lowering or sharpening of the depth gauges or shaping of the cutters may reduce or negate the effects of a kickback. Even if your STIHL dealer. !Warning! Be aware of the location of the log or other forces that may also be prevented by kickback. Don't cut . 9....kickback situations: 1. Be especially careful when cutting small, tough limbs, small size brush and saplings which may cause the cut . 001BA037 KN 18 MS 191 T Cut only one log at full throttle. 7. Always cut with a correctly sharpened, properly tensioned chain at all safety precautions to open the kerf...
... Improper lowering or sharpening of the depth gauges or shaping of the cutters may reduce or negate the effects of a kickback. Even if your STIHL dealer. !Warning! Be aware of the location of the log or other forces that may also be prevented by kickback. Don't cut . 9....kickback situations: 1. Be especially careful when cutting small, tough limbs, small size brush and saplings which may cause the cut . 001BA037 KN 18 MS 191 T Cut only one log at full throttle. 7. Always cut with a correctly sharpened, properly tensioned chain at all safety precautions to open the kerf...
Instruction Manual
Page 20
... dealer. This type of chainsaw is used only for these techniques when using other STIHL chainsaw models, see the owners' manuals for work from a lift bucket. 001BA067 KN MS 191 T 19 A 1 2 B B 2 1 A Cutting techniques: - Cut straight through thin limbs. - Limbs under strain create risk of pinching! This chainsaw equipped with ropes. - Then make bucking...
... dealer. This type of chainsaw is used only for these techniques when using other STIHL chainsaw models, see the owners' manuals for work from a lift bucket. 001BA067 KN MS 191 T 19 A 1 2 B B 2 1 A Cutting techniques: - Cut straight through thin limbs. - Limbs under strain create risk of pinching! This chainsaw equipped with ropes. - Then make bucking...
Instruction Manual
Page 21
Working in good condition. 20 MS 191 T Always stop the engine and ensure that is damaged, improperly adjusted or not completely or securely assembled. Never test the ignition system with ignition wire ... appropriate section of the proper size. (Note: If terminal has detachable SAE adapter nut, it must be performed by STIHL. Always press spark plug boot snugly onto spark plug terminal of your STIHL service dealer only. !Warning! Never operate a chainsaw that the chain is extremely hazardous. Be extremely cautious when cutting limbs...
Working in good condition. 20 MS 191 T Always stop the engine and ensure that is damaged, improperly adjusted or not completely or securely assembled. Never test the ignition system with ignition wire ... appropriate section of the proper size. (Note: If terminal has detachable SAE adapter nut, it must be performed by STIHL. Always press spark plug boot snugly onto spark plug terminal of your STIHL service dealer only. !Warning! Never operate a chainsaw that the chain is extremely hazardous. Be extremely cautious when cutting limbs...
Instruction Manual
Page 22
...burn will increase the risk of fire and hearing loss. Before storing for periodic inspection and servicing of kickback and other injuries, it inoperable. MS 191 T 21 g. replace worn sprockets or chains. The amount of wear will reduce the effectiveness of the chain brake and can spot a ...months, Moderate usage twice a year, Occasional usage annually. Remember that the risk of fire (e. Keep the chain at proper tension. If your STIHL servicing dealer for longer than a few days, always empty the fuel tank. Store chainsaw in hot or dry weather. English / USA !Warning!...
...burn will increase the risk of fire and hearing loss. Before storing for periodic inspection and servicing of kickback and other injuries, it inoperable. MS 191 T 21 g. replace worn sprockets or chains. The amount of wear will reduce the effectiveness of the chain brake and can spot a ...months, Moderate usage twice a year, Occasional usage annually. Remember that the risk of fire (e. Keep the chain at proper tension. If your STIHL servicing dealer for longer than a few days, always empty the fuel tank. Store chainsaw in hot or dry weather. English / USA !Warning!...
Instruction Manual
Page 25
... detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that are sitting in both water cooled and air cooled engines ... rating of 50:1. Do not use in your vehicle and place the canister on unleaded gasoline and the STIHL twostroke engine oil at authorized disposal locations. 24 MS 191 T Avoid direct contact with a lower octane rating may increase engine temperatures. Close the canister and shake ...
... detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that are sitting in both water cooled and air cooled engines ... rating of 50:1. Do not use in your vehicle and place the canister on unleaded gasoline and the STIHL twostroke engine oil at authorized disposal locations. 24 MS 191 T Avoid direct contact with a lower octane rating may increase engine temperatures. Close the canister and shake ...
Instruction Manual
Page 26
...to seize. For automatic and reliable lubrication of the lubricant. MS 191 T 25 Use a suitable tool (e.g. It may even cause the oil pump to aging (e.g. screwdriver end of the chain drive, clutch and chain. STIHL BioPlus) since it will otherwise quickly turn to tighten slotted ...before fueling your machine. use only an environmentally compatible quality chain and bar lubricant with non-fling additive or the rapidly biodegradable STIHL BioPlus is therefore essential to use only a specially formulated chain lubricant. This results in hard deposits that no dirt falls into...
...to seize. For automatic and reliable lubrication of the lubricant. MS 191 T 25 Use a suitable tool (e.g. It may even cause the oil pump to aging (e.g. screwdriver end of the chain drive, clutch and chain. STIHL BioPlus) since it will otherwise quickly turn to tighten slotted ...before fueling your machine. use only an environmentally compatible quality chain and bar lubricant with non-fling additive or the rapidly biodegradable STIHL BioPlus is therefore essential to use only a specially formulated chain lubricant. This results in hard deposits that no dirt falls into...
Instruction Manual
Page 29
...the Master Control lever $ = Engine off . # = Normal run position as soon as the throttle trigger is squeezed. ignition is the starting throttle position. 28 MS 191 T To move the Master Control lever from # to normal wear and tear. Observe safety precautions - The Master Control lever moves to n and also hold them...lever (4) to the normal run position - hold in that position. : Now release the throttle trigger, Master Control lever and throttle interlock in that order. STIHL dealer) at the same time - l=Cold start - n=Warm start - This is switched off -
...the Master Control lever $ = Engine off . # = Normal run position as soon as the throttle trigger is squeezed. ignition is the starting throttle position. 28 MS 191 T To move the Master Control lever from # to normal wear and tear. Observe safety precautions - The Master Control lever moves to n and also hold them...lever (4) to the normal run position - hold in that position. : Now release the throttle trigger, Master Control lever and throttle interlock in that order. STIHL dealer) at the same time - l=Cold start - n=Warm start - This is switched off -
Instruction Manual
Page 38
Always press spark plug boot (2) snugly onto spark plug terminal (1) of fire and burn injury, use only spark plugs authorized by STIHL. Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are badly eroded. 000BA036 TR English / USA Replacing ... in fuel mix. : Dirty air filter. : Unfavorable running conditions, e.g. operating at idling speed, first check the spark plug. : Remove spark plug - MS 191 T 37 If engine is down on power, difficult to start or runs poorly at part load. see "Specifications". : Use only resistor type spark plugs of...
Always press spark plug boot (2) snugly onto spark plug terminal (1) of fire and burn injury, use only spark plugs authorized by STIHL. Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are badly eroded. 000BA036 TR English / USA Replacing ... in fuel mix. : Dirty air filter. : Unfavorable running conditions, e.g. operating at idling speed, first check the spark plug. : Remove spark plug - MS 191 T 37 If engine is down on power, difficult to start or runs poorly at part load. see "Specifications". : Use only resistor type spark plugs of...