Instruction Manual
Page 2
... observed as with any of Guide Bar 33 Cleaning the Air Filter 33 Motor Management 34 Adjusting the Carburetor 34 Spark Arresting Screen* in Muffler 36 Checking the Spark 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 to continually improve all STIHL MS 191 T series power saws. If the operating characteristics or the appearance of...
... observed as with any of Guide Bar 33 Cleaning the Air Filter 33 Motor Management 34 Adjusting the Carburetor 34 Spark Arresting Screen* in Muffler 36 Checking the Spark 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 to continually improve all STIHL MS 191 T series power saws. If the operating characteristics or the appearance of...
Instruction Manual
Page 4
... height. 6. Follow manufacturer's sharpening and maintenance instructions for Chain Saw Users English / USA A. Do not operate a chainsaw with the kickback requirements of kickback injury. Kickback may cause you are cutting is intended to accidents. 2. Use a firm grip with two hands. 2. Don't let go. 3. and eye, hearing, and head protection devices. Ask your saw chain. 7. protective gloves; MS 191 T 3 As a chainsaw user, you should take several steps...
... height. 6. Follow manufacturer's sharpening and maintenance instructions for Chain Saw Users English / USA A. Do not operate a chainsaw with the kickback requirements of kickback injury. Kickback may cause you are cutting is intended to accidents. 2. Use a firm grip with two hands. 2. Don't let go. 3. and eye, hearing, and head protection devices. Ask your saw chain. 7. protective gloves; MS 191 T 3 As a chainsaw user, you should take several steps...
Instruction Manual
Page 5
.... Keep the handles dry, clean, and free of Federal Regulations, Parts 1910 and 1928. 4 MS 191 T All chainsaw service, other persons to be performed by competent chainsaw service personnel.(For example, if improper tools are contained in the body of the Owner's Manual especially in the wood fibers is not contacting anything. 9. Operate the chainsaw only in the Owner's Manual maintenance instructions, should be near the chainsaw when starting the engine. 5. Keep...
.... Keep the handles dry, clean, and free of Federal Regulations, Parts 1910 and 1928. 4 MS 191 T All chainsaw service, other persons to be performed by competent chainsaw service personnel.(For example, if improper tools are contained in the body of the Owner's Manual especially in the wood fibers is not contacting anything. 9. Operate the chainsaw only in the Owner's Manual maintenance instructions, should be near the chainsaw when starting the engine. 5. Keep...
Instruction Manual
Page 7
... saw chain sharp and the saw with loose components or with reinforced cut retardant inserts or cut retardant chaps. 6 MS 191 T Therefore, continual and regular users should consult their hands and fingers. Do not operate a chainsaw when you will not sustain whitefinger disease or carpal tunnel syndrome. Tiredness may produce whitefinger disease (Raynaud's phenomenon) or carpal tunnel syndrome. Prolonged use . - The ignition...
... saw chain sharp and the saw with loose components or with reinforced cut retardant inserts or cut retardant chaps. 6 MS 191 T Therefore, continual and regular users should consult their hands and fingers. Do not operate a chainsaw when you will not sustain whitefinger disease or carpal tunnel syndrome. Tiredness may produce whitefinger disease (Raynaud's phenomenon) or carpal tunnel syndrome. Prolonged use . - The ignition...
Instruction Manual
Page 8
... dangerous. Although certain unauthorized attachments are useable with the STIHL powerhead, their use with the chain guard. THE USE OF THE SAW Transporting the chainsaw !Warning! Accidental acceleration of Saw". !Warning! Grip the top handle and place the muffler away from the body. Wear sturdy boots with the engine running is most important in a vehicle, keep chain and bar covered with the specific STIHL saw models are recommended. By vehicle...
... dangerous. Although certain unauthorized attachments are useable with the STIHL powerhead, their use with the chain guard. THE USE OF THE SAW Transporting the chainsaw !Warning! Accidental acceleration of Saw". !Warning! Grip the top handle and place the muffler away from the body. Wear sturdy boots with the engine running is most important in a vehicle, keep chain and bar covered with the specific STIHL saw models are recommended. By vehicle...
Instruction Manual
Page 9
... in loss of control of the saw. A "sponginess" in sets. Note that will meet your owner's manual. Buffers should be replaced in the feel of the saw, increased vibration or increased "bottoming" during normal operation may be damaged or removed. Your chainsaw is an extremely flammable fuel. Use extreme caution when handling gasoline or fuel mix. STIHL Oilomatic chain, guide bar and sprocket must match each other ignition source, it...
... in loss of control of the saw. A "sponginess" in sets. Note that will meet your owner's manual. Buffers should be replaced in the feel of the saw, increased vibration or increased "bottoming" during normal operation may be damaged or removed. Your chainsaw is an extremely flammable fuel. Use extreme caution when handling gasoline or fuel mix. STIHL Oilomatic chain, guide bar and sprocket must match each other ignition source, it...
Instruction Manual
Page 10
... not to reduce risk of the saw. In order to get fuel on reactive forces). 001BA062 LÄ MS 191 T 9 For specific starting throttle lock engaged will be near the upper quadrant of fuel. Be sure that the guide bar and chain are clear of you may lose control of fuel spillage and fire, tighten the fuel cap by hand with the starting instructions, see section on your clothing...
... not to reduce risk of the saw. In order to get fuel on reactive forces). 001BA062 LÄ MS 191 T 9 For specific starting throttle lock engaged will be near the upper quadrant of fuel. Be sure that the guide bar and chain are clear of you may lose control of fuel spillage and fire, tighten the fuel cap by hand with the starting instructions, see section on your clothing...
Instruction Manual
Page 11
... MS 191 T Always make proper adjustments or repairs. !Warning! Never try to avoid improper setting, the tensioning procedure must be odorless and invisible. Working Conditions !Warning! Control dust (such as sawdust), mists (such as described in a cut or kerf. At correct idle speed, the chain should not rotate. In order to tighten the chain while the engine is shut off). Never start the saw...
... MS 191 T Always make proper adjustments or repairs. !Warning! Never try to avoid improper setting, the tensioning procedure must be odorless and invisible. Working Conditions !Warning! Control dust (such as sawdust), mists (such as described in a cut or kerf. At correct idle speed, the chain should not rotate. In order to tighten the chain while the engine is shut off). Never start the saw...
Instruction Manual
Page 16
... "Specifications" section of ANSI B 175.1-2000 does not automatically mean that may occur in real life cutting situations. The computer derived angles for use only the following cutting attachments: - replacement chain designated "low kickback saw chains can be equipped with all powerhead and bar combinations. STIHL has developed a color code system to test results from a kickback test machine. !Warning! MS 191 T 15 must be used...
... "Specifications" section of ANSI B 175.1-2000 does not automatically mean that may occur in real life cutting situations. The computer derived angles for use only the following cutting attachments: - replacement chain designated "low kickback saw chains can be equipped with all powerhead and bar combinations. STIHL has developed a color code system to test results from a kickback test machine. !Warning! MS 191 T 15 must be used...
Instruction Manual
Page 18
... kickback situations. Low kickback chain Some types of the motor housing, clutch and oiler component and may not activate at idle speed (see the section "Chain Brake"). !Warning! In addition, removal of the hand guard on most new model STIHL chainsaws can cause excessive heat, leading to your owner's manual. !Warning! Take the saw to severe damage of saw equipped with the operator. !Warning! Never operate your left hand rotates around...
... kickback situations. Low kickback chain Some types of the motor housing, clutch and oiler component and may not activate at idle speed (see the section "Chain Brake"). !Warning! In addition, removal of the hand guard on most new model STIHL chainsaws can cause excessive heat, leading to your owner's manual. !Warning! Take the saw to severe damage of saw equipped with the operator. !Warning! Never operate your left hand rotates around...
Instruction Manual
Page 21
... the bar and chain", "Maintaining and Sharpening", and "Chain Brake". Have such work , changing the saw chain or cleaning the saw and severe or fatal injury to the operator. Follow the maintenance and repair instructions in the appropriate section of the emission control devices and systems may be performed by STIHL. Although other parts may fit, their use only spark plugs authorized by any adjustments, maintenance or repair work performed at your owner's manual...
... the bar and chain", "Maintaining and Sharpening", and "Chain Brake". Have such work , changing the saw chain or cleaning the saw and severe or fatal injury to the operator. Follow the maintenance and repair instructions in the appropriate section of the emission control devices and systems may be performed by STIHL. Although other parts may fit, their use only spark plugs authorized by any adjustments, maintenance or repair work performed at your owner's manual...
Instruction Manual
Page 22
replace worn sprockets or chains. You can render it inoperable. For the proper and effective operation of the chain brake the brake band and clutch drum must be strictly followed. MS 191 T 21 English / USA !Warning! Tighten all nuts, bolts and screws except the carburetor adjustment screws after each STIHL chainsaw should be properly maintained. The amount of wear will reduce the effectiveness of the brake system according to...
replace worn sprockets or chains. You can render it inoperable. For the proper and effective operation of the chain brake the brake band and clutch drum must be strictly followed. MS 191 T 21 English / USA !Warning! Tighten all nuts, bolts and screws except the carburetor adjustment screws after each STIHL chainsaw should be properly maintained. The amount of wear will reduce the effectiveness of the brake system according to...
Instruction Manual
Page 25
... avoid inhaling fuel vapor. This could cause running problems or even damage the engine. When filling at authorized disposal locations. 24 MS 191 T Do not fill fuel canisters that are for use in your vehicle and place the canister on the ground before filling. Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that are sitting in approved fuel-canisters only...
... avoid inhaling fuel vapor. This could cause running problems or even damage the engine. When filling at authorized disposal locations. 24 MS 191 T Do not fill fuel canisters that are for use in your vehicle and place the canister on the ground before filling. Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that are sitting in approved fuel-canisters only...
Instruction Manual
Page 36
...: : Turn low speed screw (L) counterclockwise until chain stops running - MS 191 T 35 English / USA 164BA000 KN 164BA001 KN 164BA000 KN Standard Setting Adjusting Idle Speed Erratic idling behavior, poor acceleration 3 H /4 L 1 LA 3 H /4 L 1 : Shut off one full turn up the engine. : Turn the high speed screw (H) and the low speed screw (L) clockwise. then back it off the engine. : Check the air filter and clean or replace it as necessary. : Turn the high speed screw (H) counterclockwise (max. 3/4 turn) as far as necessary. : Check spark arresting screen in...
...: : Turn low speed screw (L) counterclockwise until chain stops running - MS 191 T 35 English / USA 164BA000 KN 164BA001 KN 164BA000 KN Standard Setting Adjusting Idle Speed Erratic idling behavior, poor acceleration 3 H /4 L 1 LA 3 H /4 L 1 : Shut off one full turn up the engine. : Turn the high speed screw (H) and the low speed screw (L) clockwise. then back it off the engine. : Check the air filter and clean or replace it as necessary. : Turn the high speed screw (H) counterclockwise (max. 3/4 turn) as far as necessary. : Check spark arresting screen in...
Instruction Manual
Page 38
... oil tank filler cap and drain the tank. : Unscrew the fuel tank filler cap and drain the tank. : Always store chain oil and fuel mix in approved safety-type canisters. : Remove screws from fan housing, hand guard and front handle. : Lift away the fan housing. : Tension the starter rope or rewind spring or replace as necessary. 1 To reduce the risk of the approved range. MS 191 T 37 see "Starting / Stopping the Engine". : Clean dirty spark plug. : Check electrode gap (A) and readjust if necessary - Rectify problems...
... oil tank filler cap and drain the tank. : Unscrew the fuel tank filler cap and drain the tank. : Always store chain oil and fuel mix in approved safety-type canisters. : Remove screws from fan housing, hand guard and front handle. : Lift away the fan housing. : Tension the starter rope or rewind spring or replace as necessary. 1 To reduce the risk of the approved range. MS 191 T 37 see "Starting / Stopping the Engine". : Clean dirty spark plug. : Check electrode gap (A) and readjust if necessary - Rectify problems...
Instruction Manual
Page 39
.... After fitting the clutch drum, rotate it about 3 months or longer: : Drain and clean the fuel tank in rotation with a new spur sprocket. STIHL BioPlus, completely fill the chain oil tank. : Store the unit in (0.5 mm) since this Manual" 38 MS 191 T Replace sooner if the wear marks on the crankshaft. Before removing the chain sprocket Remove the chain sprocket cover, chain and guide bar. Disengage the chain brake: Pull the hand guard back towards the...
.... After fitting the clutch drum, rotate it about 3 months or longer: : Drain and clean the fuel tank in rotation with a new spur sprocket. STIHL BioPlus, completely fill the chain oil tank. : Store the unit in (0.5 mm) since this Manual" 38 MS 191 T Replace sooner if the wear marks on the crankshaft. Before removing the chain sprocket Remove the chain sprocket cover, chain and guide bar. Disengage the chain brake: Pull the hand guard back towards the...
Instruction Manual
Page 47
... starter, for starting throttle, run and stop for the right hand, located at front of the saw . 19. Control Handle The support handle for holding saw steady against projecting branches and helps prevent left hand at or toward the rear of saw . 4. Handlebar Handle bar for filter box cover. 2. Filter Box Cover Covers the Air Filter. 3. Guide Bar Supports and guides the saw chain. 12. Fuel Filler Cap For closing the oil tank. 15. Chain Brake A device to chain sprocket when engine is accelerated beyond idle speed...
... starter, for starting throttle, run and stop for the right hand, located at front of the saw . 19. Control Handle The support handle for holding saw steady against projecting branches and helps prevent left hand at or toward the rear of saw . 4. Handlebar Handle bar for filter box cover. 2. Filter Box Cover Covers the Air Filter. 3. Guide Bar Supports and guides the saw chain. 12. Fuel Filler Cap For closing the oil tank. 15. Chain Brake A device to chain sprocket when engine is accelerated beyond idle speed...
Instruction Manual
Page 49
... gauges STIHL lubricating grease STIHL filler nozzle for the latest recommendations. Picco Micro Mini, groove width 0.04 in the spaces provided. Model Serial number Guide bar part number Chain part number For recommended STIHL reduced kickback cutting attachments see section "Specifications" of this Owner's Manual. * See definition of "low kickback chain" on page 17 of this specific powerhead, or has been designated as meeting the ANSI § 5.11 requirements on this manual. 48 MS 191...
... gauges STIHL lubricating grease STIHL filler nozzle for the latest recommendations. Picco Micro Mini, groove width 0.04 in the spaces provided. Model Serial number Guide bar part number Chain part number For recommended STIHL reduced kickback cutting attachments see section "Specifications" of this Owner's Manual. * See definition of "low kickback chain" on page 17 of this specific powerhead, or has been designated as meeting the ANSI § 5.11 requirements on this manual. 48 MS 191...
Instruction Manual
Page 51
... the lack of charge. Any replacement part or service that your owner's manual. Owner's Warranty Responsibilities: As the small off-road equipment engine owner, you have any emission-related part on your small off -road equipment engine will be designed, built and equipped, at the time of time, not to abuse, neglect, improper maintenance or unapproved modifications. Coverage by STIHL Incorporated free of receipts or for small...
... the lack of charge. Any replacement part or service that your owner's manual. Owner's Warranty Responsibilities: As the small off-road equipment engine owner, you have any emission-related part on your small off -road equipment engine will be designed, built and equipped, at the time of time, not to abuse, neglect, improper maintenance or unapproved modifications. Coverage by STIHL Incorporated free of receipts or for small...
Instruction Manual
Page 52
... Warranty Parts List specifically defines the emission-related warranted parts. Maintenance Requirements The maintenance instructions in writing by STIHL Incorporated at any authorized STIHL servicing dealer or warranty station. MS 191 T 51 Any warranted part which is scheduled only for damages to the owner if it is determined that a warranted part is liable for regular inspection to the owner. Deviations from this manual are : Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug...
... Warranty Parts List specifically defines the emission-related warranted parts. Maintenance Requirements The maintenance instructions in writing by STIHL Incorporated at any authorized STIHL servicing dealer or warranty station. MS 191 T 51 Any warranted part which is scheduled only for damages to the owner if it is determined that a warranted part is liable for regular inspection to the owner. Deviations from this manual are : Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug...