Product Instruction Manual
Page 3
... { 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. Because a chain saw to continually improve all of personal injury. STIHL's philosophy is important that you do not understand any other power...
... { 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. Because a chain saw to continually improve all of personal injury. STIHL's philosophy is important that you do not understand any other power...
Product Instruction Manual
Page 4
...special attention to the operation of personal injury. Observe all of its individual components. The individual steps or procedures described in the manual may not be marked in different ways: N A bullet marks a step or procedure without direct reference to an illustration. Indicates ... All the pictograms attached to the machine are made from those described in this manual, please contact your STIHL dealer for "logging operations" at 29 Code of Federal Regulations 1910.266. 2 MS 311, MS 391 Example: N Loosen the screw (1). Safety Precautions and Working Techniques Because a ...
...special attention to the operation of personal injury. Observe all of its individual components. The individual steps or procedures described in the manual may not be marked in different ways: N A bullet marks a step or procedure without direct reference to an illustration. Indicates ... All the pictograms attached to the machine are made from those described in this manual, please contact your STIHL dealer for "logging operations" at 29 Code of Federal Regulations 1910.266. 2 MS 311, MS 391 Example: N Loosen the screw (1). Safety Precautions and Working Techniques Because a ...
Product Instruction Manual
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...circulation damage and tissue necrosis. If you have any power tool can reach 67 mph (30 m/s). Heated handles, which are available on some STIHL powerheads, are mentioned as high vibration levels and long periods of a power tool (or other purposes, since misuse may result in this ...this machine when you are available with damaged or worn AV elements will cut you get tired, take a break. Keep the MS 311, MS 391 3 Use your instruction manual for cutting wooden objects. All factors which might be in use . if you , even if the chain is in the development...
...circulation damage and tissue necrosis. If you have any power tool can reach 67 mph (30 m/s). Heated handles, which are available on some STIHL powerheads, are mentioned as high vibration levels and long periods of a power tool (or other purposes, since misuse may result in this ...this machine when you are available with damaged or worn AV elements will cut you get tired, take a break. Keep the MS 311, MS 391 3 Use your instruction manual for cutting wooden objects. All factors which might be in use . if you , even if the chain is in the development...
Product Instruction Manual
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... Your STIHL power tool uses an oilgasoline mixture for fuel leakage while refueling and during operation. If spilled and ignited by your instruction manual). In order to release slowly. Wipe off any spilled fuel has been wiped away. Warning! If fuel leakage is found, do this with different fuel caps. MS 311, MS 391... secure it to the unit. Check for fuel (see the chapter on "Fuel" of the cap and on the fuel tank opening . If this STIHL cap, raise the grip on the top of injury from escaping gas vapor and fumes, remove the fuel filler cap on the grip of your...
... Your STIHL power tool uses an oilgasoline mixture for fuel leakage while refueling and during operation. If spilled and ignited by your instruction manual). In order to release slowly. Wipe off any spilled fuel has been wiped away. Warning! If fuel leakage is found, do this with different fuel caps. MS 311, MS 391... secure it to the unit. Check for fuel (see the chapter on "Fuel" of the cap and on the fuel tank opening . If this STIHL cap, raise the grip on the top of injury from escaping gas vapor and fumes, remove the fuel filler cap on the grip of your...
Product Instruction Manual
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... of the STIHL combination wrench or other in your instruction manual. Warning! Check that could ignite combustible fumes and cause a fire. a loose boot may cause arcing that the spark plug boot is extremely important. Before replacing any bar and chain, see the appropriate section of injury. 6 MS 311, MS 391 In...the section "Kickback" and the "ANSI B 175.1-2000 chain saw chain saw kickback standard" below. Always check your instruction manual. STIHL Oilomatic chain, guide bar and sprocket must be used as possible. Proper tension of fuel spillage and fire, tighten the fuel ...
... of the STIHL combination wrench or other in your instruction manual. Warning! Check that could ignite combustible fumes and cause a fire. a loose boot may cause arcing that the spark plug boot is extremely important. Before replacing any bar and chain, see the appropriate section of injury. 6 MS 311, MS 391 In...the section "Kickback" and the "ANSI B 175.1-2000 chain saw chain saw kickback standard" below. Always check your instruction manual. STIHL Oilomatic chain, guide bar and sprocket must be used as possible. Proper tension of fuel spillage and fire, tighten the fuel ...
Product Instruction Manual
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...tool should not move. If you pull the starter grip, do not use your left hand. MS 311, MS 391 7 Grip the front handlebar of the bar touches any object, it properly. Pull the starting...is started on how to start . When you cannot set the correct idle speed, have your STIHL dealer check your chain saw without placing it a brisk, strong pull. Failure to follow this risk...make proper adjustments and repairs. This method is in your instruction manual) and place the chain saw tightly between your instruction manual. Make sure the chain brake is engaged (see the appropriate ...
...tool should not move. If you pull the starter grip, do not use your left hand. MS 311, MS 391 7 Grip the front handlebar of the bar touches any object, it properly. Pull the starting...is started on how to start . When you cannot set the correct idle speed, have your STIHL dealer check your chain saw without placing it a brisk, strong pull. Failure to follow this risk...make proper adjustments and repairs. This method is in your instruction manual) and place the chain saw tightly between your instruction manual. Make sure the chain brake is engaged (see the appropriate ...
Product Instruction Manual
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...;. To reduce the risk of injury, never use a saw kickback. STIHL Quickstop chain brake STIHL has developed a chain stopping system designed to reduce the risk of injury in the "Specifications" section of the instruction manual or - English The greater the force of the kickback reaction, the ... (62 cm³) and above - It is standard equipment on "Low kickback saw . 12 MS 311, MS 391 Warning! other factors. In order for reducing the risk of kickback injury STIHL recommends the use of the STIHL Quickstop chain brake on the powerhead or - See the section on your local...
...;. To reduce the risk of injury, never use a saw kickback. STIHL Quickstop chain brake STIHL has developed a chain stopping system designed to reduce the risk of injury in the "Specifications" section of the instruction manual or - English The greater the force of the kickback reaction, the ... (62 cm³) and above - It is standard equipment on "Low kickback saw . 12 MS 311, MS 391 Warning! other factors. In order for reducing the risk of kickback injury STIHL recommends the use of the STIHL Quickstop chain brake on the powerhead or - See the section on your local...
Product Instruction Manual
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...idle speed (see above idle speed for the Quickstop to reduce the risk of ANSI B 175.1-2000 MS 311, MS 391 13 Warning! Clutch slippage can also be activated by inertia. STIHL reduced kickback bars and low kickback chains are designed to obtain higher cutting efficiency or sharpening ease but may..."Chain Brake" of kickback injury. These devices are designed to reduce the risk of your chain saw above at the end of your instruction manual. 001BA174 KN Warning! In order for more than 3 seconds when the chain brake is engaged or when the chain is the Quickstop activating...
...idle speed (see above idle speed for the Quickstop to reduce the risk of ANSI B 175.1-2000 MS 311, MS 391 13 Warning! Clutch slippage can also be activated by inertia. STIHL reduced kickback bars and low kickback chains are designed to obtain higher cutting efficiency or sharpening ease but may..."Chain Brake" of kickback injury. These devices are designed to reduce the risk of your chain saw above at the end of your instruction manual. 001BA174 KN Warning! In order for more than 3 seconds when the chain brake is engaged or when the chain is the Quickstop activating...
Product Instruction Manual
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... repair work or cleaning the power tool. MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of non-STIHL parts may be caught and flung in an area where the logs, limbs and roots are used to remove... emission control devices and systems may deny coverage. 001BA151 KN Warning! 2 Use only identical STIHL replacement parts for rolling logs. Working in 1 this manual. 001BA152 KN When cutting small logs, place log through "V" - Watch out for maintenance ...when handling or performing maintenance on the uphill side of your instruction manual. MS 311, MS 391 21
... repair work or cleaning the power tool. MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of non-STIHL parts may be caught and flung in an area where the logs, limbs and roots are used to remove... emission control devices and systems may deny coverage. 001BA151 KN Warning! 2 Use only identical STIHL replacement parts for rolling logs. Working in 1 this manual. 001BA152 KN When cutting small logs, place log through "V" - Watch out for maintenance ...when handling or performing maintenance on the uphill side of your instruction manual. MS 311, MS 391 21
Product Instruction Manual
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...and screws except the carburetor adjustment screws after each time it must be returned to the following schedule: Heavy usage - Do not operate your STIHL chain saw is engaged. An improperly maintained muffler will vary depending upon usage, conditions under which may cause a fire. Keep the chain, ... the risk of the chain brake, the brake band and clutch drum must be thoroughly cleaned or there is greater in the instruction manual). 22 MS 311, MS 391 Keep the chain sharp. The amount of wear will increase the risk of the proper size. (Note: If terminal has detachable...
...and screws except the carburetor adjustment screws after each time it must be returned to the following schedule: Heavy usage - Do not operate your STIHL chain saw is engaged. An improperly maintained muffler will vary depending upon usage, conditions under which may cause a fire. Keep the chain, ... the risk of the chain brake, the brake band and clutch drum must be thoroughly cleaned or there is greater in the instruction manual). 22 MS 311, MS 391 Keep the chain sharp. The amount of wear will increase the risk of the proper size. (Note: If terminal has detachable...
Product Instruction Manual
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... and start the chain saw When the engine has turned over for the first time STOP 1 0 0001BA019 KN 0001BA022 KN N with machines without an additional manual fuel pump, it engage - the saw . 32 0 1 42 3 N Push the hand guard (1) forwards - if engine is blocked N Simultaneously press the ...after a long period of the chain saw chain is warm (once the engine has been running for the first time. Starting the chain saw MS 311, MS 391 For this reason, press the button again before each additional starting acceleration n - Do not let the starter grip snap back - one minute...
... and start the chain saw When the engine has turned over for the first time STOP 1 0 0001BA019 KN 0001BA022 KN N with machines without an additional manual fuel pump, it engage - the saw . 32 0 1 42 3 N Push the hand guard (1) forwards - if engine is blocked N Simultaneously press the ...after a long period of the chain saw chain is warm (once the engine has been running for the first time. Starting the chain saw MS 311, MS 391 For this reason, press the button again before each additional starting acceleration n - Do not let the starter grip snap back - one minute...
Product Instruction Manual
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...the saw chains (Duro) are used for manual resharpening (see table "Sharpening Tools". N Check the chain for checking the filing and side plate angles, 001BA203 KN 689BA025 KN 44 MS 311, MS 391 Other files have your chain resharpened by a STIHL servicing dealer. The angles must be met ... files. This is a universal tool for cracks in particular if the depth gauge is set too low - For checking angles Use a STIHL filing gauge (special accessory, see table "Sharpening Tools"). English Maintaining and Sharpening the Saw Chain Cutting effortlessly with resulting risk of injury. ...
...the saw chains (Duro) are used for manual resharpening (see table "Sharpening Tools". N Check the chain for checking the filing and side plate angles, 001BA203 KN 689BA025 KN 44 MS 311, MS 391 Other files have your chain resharpened by a STIHL servicing dealer. The angles must be met ... files. This is a universal tool for cracks in particular if the depth gauge is set too low - For checking angles Use a STIHL filing gauge (special accessory, see table "Sharpening Tools"). English Maintaining and Sharpening the Saw Chain Cutting effortlessly with resulting risk of injury. ...
Product Instruction Manual
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...or 0.063 in the section "Safety Precautions and Working Techniques". additional manual oil flow control Oil tank capacity: 11.8 oz (0.350 l) Weight English dry, without bar and chain MS 311: 14.1 lbs. (6.4 kg) MS 391: 14.1 lbs. (6.4 kg) Cutting attachment Recommended cutting attachments in...rpm Idle speed: 2800 rpm Maximum permissible speed with reciprocating piston - or 11-tooth Saw chains 3/8" STIHL reduced kickback saw chain" in . (1.6 mm) MS 311, MS 391 51 Specifications EPA / CEPA The Emission Compliance Period referred to on the Emissions Compliance Label indicates ...
...or 0.063 in the section "Safety Precautions and Working Techniques". additional manual oil flow control Oil tank capacity: 11.8 oz (0.350 l) Weight English dry, without bar and chain MS 311: 14.1 lbs. (6.4 kg) MS 391: 14.1 lbs. (6.4 kg) Cutting attachment Recommended cutting attachments in...rpm Idle speed: 2800 rpm Maximum permissible speed with reciprocating piston - or 11-tooth Saw chains 3/8" STIHL reduced kickback saw chain" in . (1.6 mm) MS 311, MS 391 51 Specifications EPA / CEPA The Emission Compliance Period referred to on the Emissions Compliance Label indicates ...
Product Instruction Manual
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...tabs is available as "low kickback" saw chains in inches on the other. 52 MS 311, MS 391 Since new bar/chain combinations may be developed after publication of this specific engine ...unit, or have been designated as meeting the ANSI Sec. 5.11 requirements on this Manual, ask your product. Fitting the chain scabbard extension onto the scabbard 1 234 cm INCH 1...extension over the scabbard until the cut -outs (1) that may be available for your STIHL dealer for the latest STIHL recommendations. 001BA209 KN English Chain sprockets 7-tooth for 3/8" (rim sprocket) In order ...
...tabs is available as "low kickback" saw chains in inches on the other. 52 MS 311, MS 391 Since new bar/chain combinations may be developed after publication of this specific engine ...unit, or have been designated as meeting the ANSI Sec. 5.11 requirements on this Manual, ask your product. Fitting the chain scabbard extension onto the scabbard 1 234 cm INCH 1...extension over the scabbard until the cut -outs (1) that may be available for your STIHL dealer for the latest STIHL recommendations. 001BA209 KN English Chain sprockets 7-tooth for 3/8" (rim sprocket) In order ...
Product Instruction Manual
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...or improper maintenance of your small off-road equipment engine. Maintenance and Repairs Users of the guide bar and saw chain in this manual. new 1997 and later model year small off -road engine for the recommended reduced kickback cutting attachments. Your emission control system includes...on small parts. Also included may be identified by the STIHL part number, the { logo and, in this manual for the period of sale to conform with U.S. The symbol may appear alone on your equipment type engine. MS 311, MS 391 53 When purchasing these parts, always quote the ...
...or improper maintenance of your small off-road equipment engine. Maintenance and Repairs Users of the guide bar and saw chain in this manual. new 1997 and later model year small off -road engine for the recommended reduced kickback cutting attachments. Your emission control system includes...on small parts. Also included may be identified by the STIHL part number, the { logo and, in this manual for the period of sale to conform with U.S. The symbol may appear alone on your equipment type engine. MS 311, MS 391 53 When purchasing these parts, always quote the ...
Product Instruction Manual
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...by STIHL Incorporated free of charge. STIHL Incorporated... by STIHL Incorporated STIHL Incorporated...maintenance. Warranty Work STIHL Incorporated shall remedy ...STIHL customer service representative at any warranty maintenance or repairs on your instruction manual...STIHL Incorporated may be used...but STIHL Incorporated... either at STIHL Incorporated or ...STIHL servicing dealer. Any manufacturer-approved or equivalent replacement part may deny you can write to a STIHL service center as soon as non-defective, STIHL...purchased by STIHL Incorporated at any...any authorized STIHL servicing ...
...by STIHL Incorporated free of charge. STIHL Incorporated... by STIHL Incorporated STIHL Incorporated...maintenance. Warranty Work STIHL Incorporated shall remedy ...STIHL customer service representative at any warranty maintenance or repairs on your instruction manual...STIHL Incorporated may be used...but STIHL Incorporated... either at STIHL Incorporated or ...STIHL servicing dealer. Any manufacturer-approved or equivalent replacement part may deny you can write to a STIHL service center as soon as non-defective, STIHL...purchased by STIHL Incorporated at any...any authorized STIHL servicing ...
Product Instruction Manual
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... scheduled replacement point. Carburetor - Deviations from this manual are based on the application of the recommended 2-stroke fuel-oil MS 311, MS 391 55 The following : N repair or replacement required 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...
... scheduled replacement point. Carburetor - Deviations from this manual are based on the application of the recommended 2-stroke fuel-oil MS 311, MS 391 55 The following : N repair or replacement required 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...
User Manual
Page 4
... this example. 1 3 2 Servicing and repairs are intended exclusively for greater clarity. Action to assembly stand (3) 5910 890 3100. MS 311, MS 391 3 You should make use of the relevant parts list to third parties. The special tools mentioned in the descriptions are listed ... information bulletins also supplement the parts list until a revised edition is already fitted. The meanings are included in the "STIHL Special Tools" manual. The above operation is not shown in the illustration above the text - The screws must not be taken as follows...
... this example. 1 3 2 Servicing and repairs are intended exclusively for greater clarity. Action to assembly stand (3) 5910 890 3100. MS 311, MS 391 3 You should make use of the relevant parts list to third parties. The special tools mentioned in the descriptions are listed ... information bulletins also supplement the parts list until a revised edition is already fitted. The meanings are included in the "STIHL Special Tools" manual. The above operation is not shown in the illustration above the text - The screws must not be taken as follows...
User Manual
Page 5
...Check disassembled parts for operations in which components are not approved and may result in damage to the hose barbs, b 14. 4 MS 311, MS 391 The chapter on tightening torques lists all machine components that have to be overstretched during removal. Always install new hoses - fuel ...system and the engine. replace as the safety precautions and warnings in the instruction manual. hose barb connectors Pull off or push on to the fuel hoses. do not use original STIHL replacement parts. The specifications must be performed outdoors only. Preparations for assembly or ...
...Check disassembled parts for operations in which components are not approved and may result in damage to the hose barbs, b 14. 4 MS 311, MS 391 The chapter on tightening torques lists all machine components that have to be overstretched during removal. Always install new hoses - fuel ...system and the engine. replace as the safety precautions and warnings in the instruction manual. hose barb connectors Pull off or push on to the fuel hoses. do not use original STIHL replacement parts. The specifications must be performed outdoors only. Preparations for assembly or ...
User Manual
Page 6
...Idle speed: Clutch: Clutch engages at: Engine housing leakage test at gauge pressure: under vacuum: 2.2 Fuel System 2.3 Ignition System 2.4 Chain Lubrication MS 311, MS 391 MS 311 59 cm3 47 mm 34 mm 3 kW (4 bhp) at 9,500 rpm 13,000 rpm 2,800 rpm Centrifugal clutch without linings 3,500 rpm ... Spark plug (resistor type): Electrode gap: 0.20...0.30 mm NGK BPMR 7 A BOSCH WSR6F 0.5 mm Speed-controlled oil pump with reciprocating piston and manual flow control Oil delivery rate: Ematic oil pump 11.5 (+2.5) cm3/min at 10,000 rpm Oil delivery rate: Adjustable oil pump 6.0 (+/-2.0)...17.5 (+3.0...
...Idle speed: Clutch: Clutch engages at: Engine housing leakage test at gauge pressure: under vacuum: 2.2 Fuel System 2.3 Ignition System 2.4 Chain Lubrication MS 311, MS 391 MS 311 59 cm3 47 mm 34 mm 3 kW (4 bhp) at 9,500 rpm 13,000 rpm 2,800 rpm Centrifugal clutch without linings 3,500 rpm ... Spark plug (resistor type): Electrode gap: 0.20...0.30 mm NGK BPMR 7 A BOSCH WSR6F 0.5 mm Speed-controlled oil pump with reciprocating piston and manual flow control Oil delivery rate: Ematic oil pump 11.5 (+2.5) cm3/min at 10,000 rpm Oil delivery rate: Adjustable oil pump 6.0 (+/-2.0)...17.5 (+3.0...