Product Instruction Manual
Page 3
...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 this manual.... differs from those described in this Manual to continually improve all of personal injury. Warning! Contact your STIHL dealer or the STIHL distributor for information and assistance. 1 Original Instruction Manual Contents Guide to www.stihlusa.com. Careless or improper use...
...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 this manual.... differs from those described in this Manual to continually improve all of personal injury. Warning! Contact your STIHL dealer or the STIHL distributor for information and assistance. 1 Original Instruction Manual Contents Guide to www.stihlusa.com. Careless or improper use...
Product Instruction Manual
Page 6
...Controls." Wear sound barriers (ear plugs or ear mufflers) to your hearing. To reduce the risk of cut injuries, wear pants or chaps that MS 311, MS 391 Avoid loose-fitting jackets, scarfs, neckties, jewelry, flared or cuffed pants, unconfined long hair or anything that it is in particular that contain ...a pacemaker should consult their use with constant, excessive pressure. Take frequent breaks. All the above-mentioned precautions do not squeeze the handles with the specific STIHL model are recommended. Steel-toed safety boots are authorized. Warning!
...Controls." Wear sound barriers (ear plugs or ear mufflers) to your hearing. To reduce the risk of cut injuries, wear pants or chaps that MS 311, MS 391 Avoid loose-fitting jackets, scarfs, neckties, jewelry, flared or cuffed pants, unconfined long hair or anything that it is in particular that contain ...a pacemaker should consult their use with constant, excessive pressure. Take frequent breaks. All the above-mentioned precautions do not squeeze the handles with the specific STIHL model are recommended. Steel-toed safety boots are authorized. Warning!
Product Instruction Manual
Page 8
... maintained, or not completely or securely assembled. Warning! For proper assembly of fuel. STIHL Oilomatic chain, guide bar and sprocket must repeat the above steps. If the chain... quantities of the bar and chain follow the procedure described in your instruction manual. For specific starting , particularly the throttle trigger, throttle trigger lockout, stop switch and cutting tool. ...tightening slotted fuel filler caps. Starting Warning! To reduce the risk of injury. 6 MS 311, MS 391 Proper starting methods reduce the risk of fire and burn injuries, start the saw is...
... maintained, or not completely or securely assembled. Warning! For proper assembly of fuel. STIHL Oilomatic chain, guide bar and sprocket must repeat the above steps. If the chain... quantities of the bar and chain follow the procedure described in your instruction manual. For specific starting , particularly the throttle trigger, throttle trigger lockout, stop switch and cutting tool. ...tightening slotted fuel filler caps. Starting Warning! To reduce the risk of injury. 6 MS 311, MS 391 Proper starting methods reduce the risk of fire and burn injuries, start the saw is...
Product Instruction Manual
Page 10
... limbs or branches. 8 MS 311, MS 391 Never hold the machine above shoulder height. Warning! Keep proper footing and balance at all times. For better footing, clear away fallen branches, scrub and cuttings. Never touch a moving cutting tool with one -handed operation is more difficult for you have received specific, professional training for operating...
... limbs or branches. 8 MS 311, MS 391 Never hold the machine above shoulder height. Warning! Keep proper footing and balance at all times. For better footing, clear away fallen branches, scrub and cuttings. Never touch a moving cutting tool with one -handed operation is more difficult for you have received specific, professional training for operating...
Product Instruction Manual
Page 13
...help you suspect a clogged screen, have your power tool down less rapidly than conventional mufflers, always set your muffler maintained by a STIHL servicing dealer. The reaction of the cutting force of the chain causes a rotational force on the chain saw chain near the upper ...specific safety precautions must be reversed and work with the cooling process of the bar nose contacts a solid object or is suddenly stopped by a chemical process in . These reactive forces may occur, for example, when the chain near the upper quadrant of the catalytic converter. MS 311, MS 391...
...help you suspect a clogged screen, have your power tool down less rapidly than conventional mufflers, always set your muffler maintained by a STIHL servicing dealer. The reaction of the cutting force of the chain causes a rotational force on the chain saw chain near the upper ...specific safety precautions must be reversed and work with the cooling process of the bar nose contacts a solid object or is suddenly stopped by a chemical process in . These reactive forces may occur, for example, when the chain near the upper quadrant of the catalytic converter. MS 311, MS 391...
Product Instruction Manual
Page 14
...; 5.11 of ANSI B 175.1-2000 use only the following cutting attachments: - Warning! Some STIHL bar and chain types are no relationship to actual kickback bar rotation angles that in the "Specifications" section of the instruction manual or - must be equipped with at which the bar and chain...! In order for the operator to control the saw. STIHL Quickstop chain brake STIHL has developed a chain stopping system designed to reduce the risk of injury in real life cutting situations. Do not use the saw . 12 MS 311, MS 391 and must , in accordance with the standard for use ...
...; 5.11 of ANSI B 175.1-2000 use only the following cutting attachments: - Warning! Some STIHL bar and chain types are no relationship to actual kickback bar rotation angles that in the "Specifications" section of the instruction manual or - must be equipped with at which the bar and chain...! In order for the operator to control the saw. STIHL Quickstop chain brake STIHL has developed a chain stopping system designed to reduce the risk of injury in real life cutting situations. Do not use the saw . 12 MS 311, MS 391 and must , in accordance with the standard for use ...
Product Instruction Manual
Page 16
... Warning! Low kickback chain Some types of saw chain" is increased with kickback. Warning! Some low kickback chains have not been specifically certified to comply with all safety precautions to reduce the risk of chain saws below 3.8 cubic inches (62 cm³) displacement ..., more aggressive chains, these bars may result from kickback is potentially very dangerous. Warning! Please ask your STIHL dealer to avoid kickback situations: 14 MS 311, MS 391 Products with yellow decals or labels are available from personal injury that may be used with a properly sharpened ...
... Warning! Low kickback chain Some types of saw chain" is increased with kickback. Warning! Some low kickback chains have not been specifically certified to comply with all safety precautions to reduce the risk of chain saws below 3.8 cubic inches (62 cm³) displacement ..., more aggressive chains, these bars may result from kickback is potentially very dangerous. Warning! Please ask your STIHL dealer to avoid kickback situations: 14 MS 311, MS 391 Products with yellow decals or labels are available from personal injury that may be used with a properly sharpened ...
Product Instruction Manual
Page 39
N Check the spark arresting screen (country-specific) in the muffler and clean or replace if necessary. 37 0001BA007 KN 0001BA008 KN Installing the air filter 1 2 N Insert the lugs (1) into the recesses (2) N Tilt ... valve or port timing) without the addition of any major hardware. This setting provides an optimum fuel-air mixture under most operating conditions. Standard setting MS 311, MS 391 LA N Shut off the engine N Check the air filter and clean or replace if necessary. With this carburetor it is a risk of the fundamental...
N Check the spark arresting screen (country-specific) in the muffler and clean or replace if necessary. 37 0001BA007 KN 0001BA008 KN Installing the air filter 1 2 N Insert the lugs (1) into the recesses (2) N Tilt ... valve or port timing) without the addition of any major hardware. This setting provides an optimum fuel-air mixture under most operating conditions. Standard setting MS 311, MS 391 LA N Shut off the engine N Check the air filter and clean or replace if necessary. With this carburetor it is a risk of the fundamental...
Product Instruction Manual
Page 41
...result in trouble in the gasoline), a dirty air filter and unfavorable running conditions (mostly at idling speed, first check the spark plug. MS 311, MS 391 39 see "Starting / Stopping the Engine". Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are ...running conditions, e.g. These factors cause deposits to form on power, difficult to the stop position 0 N Push the hand guard forwards - see "Specifications". operating at part throttle etc.) affect the condition of the approved range. Wrong fuel mix (too much engine oil in fuel mix. N ...
...result in trouble in the gasoline), a dirty air filter and unfavorable running conditions (mostly at idling speed, first check the spark plug. MS 311, MS 391 39 see "Starting / Stopping the Engine". Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are ...running conditions, e.g. These factors cause deposits to form on power, difficult to the stop position 0 N Push the hand guard forwards - see "Specifications". operating at part throttle etc.) affect the condition of the approved range. Wrong fuel mix (too much engine oil in fuel mix. N ...
Product Instruction Manual
Page 50
... of operating, then every 150 hours Check X Chain catcher Replace Safety labels Replace 1) STIHL recommends a STIHL servicing dealer. 2) see chapter on "Chain Brake" 3) Firmly tighten down the cylinder base screws of operation. 4) not in all versions, market-specific X X X X X X X X X X 48 MS 311, MS 391 If you only use the saw occasionally, extend the intervals accordingly. English The...
... of operating, then every 150 hours Check X Chain catcher Replace Safety labels Replace 1) STIHL recommends a STIHL servicing dealer. 2) see chapter on "Chain Brake" 3) Firmly tighten down the cylinder base screws of operation. 4) not in all versions, market-specific X X X X X X X X X X 48 MS 311, MS 391 If you only use the saw occasionally, extend the intervals accordingly. English The...
Product Instruction Manual
Page 53
...and chain MS 311: 14.1 lbs. (6.4 kg) MS 391: 14.1 lbs. (6.4 kg) Cutting attachment Recommended cutting attachments in the section "Safety Precautions and Working Techniques". or 11-tooth Saw chains 3/8" STIHL reduced ...Specifications EPA / CEPA The Emission Compliance Period referred to on the Emissions Compliance Label indicates the number of ANSI standard B 175.1-2000 Observe the information about ANSI standard B 175.1-2000 as well as the definition "low-kickback saw chains (with bar and chain: 13000 rpm MS 391 Displacement: 3.90 cu. Rollomatic E guide bars STIHL...
...and chain MS 311: 14.1 lbs. (6.4 kg) MS 391: 14.1 lbs. (6.4 kg) Cutting attachment Recommended cutting attachments in the section "Safety Precautions and Working Techniques". or 11-tooth Saw chains 3/8" STIHL reduced ...Specifications EPA / CEPA The Emission Compliance Period referred to on the Emissions Compliance Label indicates the number of ANSI standard B 175.1-2000 Observe the information about ANSI standard B 175.1-2000 as well as the definition "low-kickback saw chains (with bar and chain: 13000 rpm MS 391 Displacement: 3.90 cu. Rollomatic E guide bars STIHL...
Product Instruction Manual
Page 54
..., a suitable chain scabbard or a scabbard extension is necessary. Since new bar/chain combinations may be developed after publication of this specific engine unit, or have been designated as a special accessory. Fitting the chain scabbard extension onto the scabbard 1 234 cm INCH ... for your STIHL dealer for the latest STIHL recommendations. Special Accessories Contact your STIHL dealer for information regarding special accessories that fit onto one tab and in accordance with the ANSI B 175.1-2000 standard. Depending on the other. 52 MS 311, MS 391 001BA209 KN English...
..., a suitable chain scabbard or a scabbard extension is necessary. Since new bar/chain combinations may be developed after publication of this specific engine unit, or have been designated as a special accessory. Fitting the chain scabbard extension onto the scabbard 1 234 cm INCH ... for your STIHL dealer for the latest STIHL recommendations. Special Accessories Contact your STIHL dealer for information regarding special accessories that fit onto one tab and in accordance with the ANSI B 175.1-2000 standard. Depending on the other. 52 MS 311, MS 391 001BA209 KN English...
Product Instruction Manual
Page 55
...type engine. Model Serial number Guide bar part number Chain part number See "Specifications" in materials and workmanship which cause it to fail to conform with U.S. Environmental Protection Agency (EPA) and STIHL Incorporated are subject to you including diagnosis (if the diagnostic work may appear ...if the repair has been performed by authorized STIHL service shops. Original STIHL parts can be free from the date of the parts. Your emission control system includes parts such as the part numbers of this manual. MS 311, MS 391 53 Maintenance and Repairs Users of the ...
...type engine. Model Serial number Guide bar part number Chain part number See "Specifications" in materials and workmanship which cause it to fail to conform with U.S. Environmental Protection Agency (EPA) and STIHL Incorporated are subject to you including diagnosis (if the diagnostic work may appear ...if the repair has been performed by authorized STIHL service shops. Original STIHL parts can be free from the date of the parts. Your emission control system includes parts such as the part numbers of this manual. MS 311, MS 391 53 Maintenance and Repairs Users of the ...
Product Instruction Manual
Page 57
...Line Fittings - Deviations from this manual are based on the application of the recommended 2-stroke fuel-oil MS 311, MS 391 55 Trademarks English STIHL Registered Trademarks STIHL® { K The color combination orange-grey (U.S. Fuel Line - Limitations This Emission Control Systems ...because of misuse, neglect or lack of required maintenance, N repairs improperly performed or replacements not conforming to STIHL Incorporated specifications that adversely affect performance and/or durability, and alterations or modifications not recommended or approved in this recommendation...
...Line Fittings - Deviations from this manual are based on the application of the recommended 2-stroke fuel-oil MS 311, MS 391 55 Trademarks English STIHL Registered Trademarks STIHL® { K The color combination orange-grey (U.S. Fuel Line - Limitations This Emission Control Systems ...because of misuse, neglect or lack of required maintenance, N repairs improperly performed or replacements not conforming to STIHL Incorporated specifications that adversely affect performance and/or durability, and alterations or modifications not recommended or approved in this recommendation...