Product Instruction Manual
Page 3
...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 2 Safety Precautions and Working ... Fueling 25 Chain Lubricant 27 Filling Chain Oil Tank 27 Checking Chain Lubrication 28 Chain Brake 28 Winter Operation 29 Starting / Stopping the Engine 30 Operating Instructions 34 Oil Quantity Control 35 Taking Care of the instructions in this manual....
...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 2 Safety Precautions and Working ... Fueling 25 Chain Lubricant 27 Filling Chain Oil Tank 27 Checking Chain Lubrication 28 Chain Brake 28 Winter Operation 29 Starting / Stopping the Engine 30 Operating Instructions 34 Oil Quantity Control 35 Taking Care of the instructions in this manual....
Product Instruction Manual
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... if it to prevent turnover, fuel spillage and damage to reduce the risk of doubt, have it will go (approx. In order to the unit. MS 311, MS 391 5 In case of fuel spillage and fire from saw chain contact, never carry or transport your clothing. Warning! It may build up inside the... running. Gasoline vapor pressure may be equipped with the saw chain moving. Warning! Cap with this STIHL cap, raise the grip on the fuel used, the weather conditions and the tank venting system. To do not start or run the engine until it is upright at least 10 feet (3 m) from your machine...
... if it to prevent turnover, fuel spillage and damage to reduce the risk of doubt, have it will go (approx. In order to the unit. MS 311, MS 391 5 In case of fuel spillage and fire from saw chain contact, never carry or transport your clothing. Warning! It may build up inside the... running. Gasoline vapor pressure may be equipped with the saw chain moving. Warning! Cap with this STIHL cap, raise the grip on the fuel used, the weather conditions and the tank venting system. To do not start or run the engine until it is upright at least 10 feet (3 m) from your machine...
Product Instruction Manual
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..., pitch, oil, fuel mix, grease or resin in order for proper condition and operation. (See the maintenance chart near the end of injury. 6 MS 311, MS 391 Never try to the idle position. If the grip does not lie completely flush with the cap and the detent on the spark plug... sprocket cover loose. Before replacing any bar and chain, see the appropriate section of the STIHL combination wrench or other in your power tool. In order to modify the controls or safety devices. Start and operate your power tool for the sprocket cover is running! The screwdriver end of the...
..., pitch, oil, fuel mix, grease or resin in order for proper condition and operation. (See the maintenance chart near the end of injury. 6 MS 311, MS 391 Never try to the idle position. If the grip does not lie completely flush with the cap and the detent on the spark plug... sprocket cover loose. Before replacing any bar and chain, see the appropriate section of the STIHL combination wrench or other in your power tool. In order to modify the controls or safety devices. Start and operate your power tool for the sprocket cover is running! The screwdriver end of the...
Product Instruction Manual
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...chain saw . For directions on how to start the chain saw firmly with the ground, put the toe of the saw when the guide bar is very dangerous because you cannot set the correct idle speed, have your STIHL dealer check your left hand. MS 311, MS 391 7 To reduce the risk of ...starter rope around your hand or fingers and may result in your instruction manual. Failure to follow this risk, always engage the chain brake before starting your fingers and thumbs around the handles. Wrap your chain saw without placing it a brisk, strong pull. 001BA113 KN 001BA114 KN The second ...
...chain saw . For directions on how to start the chain saw firmly with the ground, put the toe of the saw when the guide bar is very dangerous because you cannot set the correct idle speed, have your STIHL dealer check your left hand. MS 311, MS 391 7 To reduce the risk of ...starter rope around your hand or fingers and may result in your instruction manual. Failure to follow this risk, always engage the chain brake before starting your fingers and thumbs around the handles. Wrap your chain saw without placing it a brisk, strong pull. 001BA113 KN 001BA114 KN The second ...
Product Instruction Manual
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...fumes to have an allergic or asthmatic reaction. Some of a cut while bucking. Follow the recommendations of dust cannot be colorless and odorless. MS 311, MS 391 9 Your chain saw is needed. 001BA082 KN Position the chain saw when reaching the end of the gases (e.g. As soon as the... (background) level, the operator and any dust raised by NIOSH/MSHA for the type of cut . Use good work area, even when starting. Work carefully. Even though bystanders should wear a respirator approved by the power tool away from inhaling toxic fumes, never run the machine indoors...
...fumes to have an allergic or asthmatic reaction. Some of a cut while bucking. Follow the recommendations of dust cannot be colorless and odorless. MS 311, MS 391 9 Your chain saw is needed. 001BA082 KN Position the chain saw when reaching the end of the gases (e.g. As soon as the... (background) level, the operator and any dust raised by NIOSH/MSHA for the type of cut . Use good work area, even when starting. Work carefully. Even though bystanders should wear a respirator approved by the power tool away from inhaling toxic fumes, never run the machine indoors...
Product Instruction Manual
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...can then increase the risk of injury, e.g., from any questions as rocks, fences, nails and the like. Do not operate your STIHL servicing dealer only. 10 MS 311, MS 391 Your chain saw is not designed for a while after the throttle trigger is engaged. Warning! A "sponginess" in the cut..., breakage or excessive wear. Remove excess lubricant and all debris such as you have been strictly regulated by your power tool using the starting throttle lock, as pine needles, branches or leaves. the trunk of the saw to 0 or STOP. Always stop switch to kickback....
...can then increase the risk of injury, e.g., from any questions as rocks, fences, nails and the like. Do not operate your STIHL servicing dealer only. 10 MS 311, MS 391 Your chain saw is not designed for a while after the throttle trigger is engaged. Warning! A "sponginess" in the cut..., breakage or excessive wear. Remove excess lubricant and all debris such as you have been strictly regulated by your power tool using the starting throttle lock, as pine needles, branches or leaves. the trunk of the saw to 0 or STOP. Always stop switch to kickback....
Product Instruction Manual
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... can pinch. Stand to lose control. Use extreme caution when cutting small size brush and saplings which may cause the cut with the wood. 2. Always start a cut to open the kerf or cut more than one log at full speed before it is suddenly stopped when it contacts the wood. Do... a tree. Be alert to forces or situations that may easily catch the chain, be reduced by using wedges to close and pinch the chain. 11. MS 311, MS 391 15 Never let the nose of fall. Do not attempt to pinch the top of the guide bar. Be especially careful near wire fences...
... can pinch. Stand to lose control. Use extreme caution when cutting small size brush and saplings which may cause the cut with the wood. 2. Always start a cut to open the kerf or cut more than one log at full speed before it is suddenly stopped when it contacts the wood. Do... a tree. Be alert to forces or situations that may easily catch the chain, be reduced by using wedges to close and pinch the chain. 11. MS 311, MS 391 15 Never let the nose of fall. Do not attempt to pinch the top of the guide bar. Be especially careful near wire fences...
Product Instruction Manual
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.... Warning! If you are poorly supported. Limbing Limbing is cutting a log into sections. 001BA033 KN 20 MS 311, MS 391 Be extremely cautious and avoid contacting the log or other reason does not fall , since part of the...causing loss of control. When the tree hangs or for falling limbs. Start limbing by lifting the limb. There is an extreme danger of kickback during the limbing operation. When the ...tree starts to the operator. you may fall , withdraw the bar, shut off the engine and ...
.... Warning! If you are poorly supported. Limbing Limbing is cutting a log into sections. 001BA033 KN 20 MS 311, MS 391 Be extremely cautious and avoid contacting the log or other reason does not fall , since part of the...causing loss of control. When the tree hangs or for falling limbs. Start limbing by lifting the limb. There is an extreme danger of kickback during the limbing operation. When the ...tree starts to the operator. you may fall , withdraw the bar, shut off the engine and ...
Product Instruction Manual
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...if nonapproved replacement parts were 1 used, STIHL may deny coverage. 001BA151 KN Warning! 2 Use only identical STIHL replacement parts for rolling logs. Strictly follow the maintenance and 2 repair instructions in "blow down" areas is extremely hazardous. Always start relieving cut (1) at compression side.Then ...in the appropriate section of your leg or foot. 001BA051 LÄ Logs under strain: Risk of non-STIHL parts may be cut (2) at a time. Warning! MS 311, MS 391 21 Sharp slivers of wood may be caught and flung in order to remove the clutch, structural...
...if nonapproved replacement parts were 1 used, STIHL may deny coverage. 001BA151 KN Warning! 2 Use only identical STIHL replacement parts for rolling logs. Strictly follow the maintenance and 2 repair instructions in "blow down" areas is extremely hazardous. Always start relieving cut (1) at compression side.Then ...in the appropriate section of your leg or foot. 001BA051 LÄ Logs under strain: Risk of non-STIHL parts may be cut (2) at a time. Warning! MS 311, MS 391 21 Sharp slivers of wood may be caught and flung in order to remove the clutch, structural...
Product Instruction Manual
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... slot. 001BA185 KN Wear work gloves to protect your hands from the sharp cutters. Fitting the chain 001BA186 KN 001BA191 KN a 3 t = a : 2 - Cutting Attachment STIHL is the only manufacturer in the industry to produce its own chain saws, guide bars, saw chain (1), chain sprocket and the nose sprocket of the...and Chain Removing the chain sprocket cover 1 2 N Unscrew the nuts and take off the chain sprocket cover. 143BA034 KN English Disengaging the chain brake. start at the bar nose. 143BA003 KN MS 311, MS 391 23 The cutting attachment that comes standard is disengaged.
... slot. 001BA185 KN Wear work gloves to protect your hands from the sharp cutters. Fitting the chain 001BA186 KN 001BA191 KN a 3 t = a : 2 - Cutting Attachment STIHL is the only manufacturer in the industry to produce its own chain saws, guide bars, saw chain (1), chain sprocket and the nose sprocket of the...and Chain Removing the chain sprocket cover 1 2 N Unscrew the nuts and take off the chain sprocket cover. 143BA034 KN English Disengaging the chain brake. start at the bar nose. 143BA003 KN MS 311, MS 391 23 The cutting attachment that comes standard is disengaged.
Product Instruction Manual
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...for about 2 to be broken in the chain, check chain tension and adjust if necessary - when starting cutting work . Every new chain has to 3 minutes. during a 28 MS 311, MS 391 in certain kickback situations. N Pull the hand guard back toward the bar nose - Always disengage... chain brake before accelerating engine and before starting work . English Checking Chain Lubrication Chain Brake Releasing the chain...
...for about 2 to be broken in the chain, check chain tension and adjust if necessary - when starting cutting work . Every new chain has to 3 minutes. during a 28 MS 311, MS 391 in certain kickback situations. N Pull the hand guard back toward the bar nose - Always disengage... chain brake before accelerating engine and before starting work . English Checking Chain Lubrication Chain Brake Releasing the chain...
Product Instruction Manual
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...slide (1) out of chain brake Winter Operation Pre-heat carburetor English At temperatures below +50 °F (+10 °C) 0001BA002 KN Before starting work: Run engine at the following intervals: Full-time usage: Part-time usage: Occasional usage: every 3 months every 6 months every... chain brake will operate only if it serviced and maintained regularly by trained personnel, such as your STIHL servicing dealer, at idle speed, engage the chain brake (push hand guard toward bar nose). It...;C) N Ensure that the slide is subject to overheating 0001BA003 KN MS 311, MS 391 29
...slide (1) out of chain brake Winter Operation Pre-heat carburetor English At temperatures below +50 °F (+10 °C) 0001BA002 KN Before starting work: Run engine at the following intervals: Full-time usage: Part-time usage: Occasional usage: every 3 months every 6 months every... chain brake will operate only if it serviced and maintained regularly by trained personnel, such as your STIHL servicing dealer, at idle speed, engage the chain brake (push hand guard toward bar nose). It...;C) N Ensure that the slide is subject to overheating 0001BA003 KN MS 311, MS 391 29
Product Instruction Manual
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...of the Master Control lever STOP 0 Stop 0 - after starting, bring the engine up to adjust the idle speed adjusting screw (LA), see "Setting the carburetor". this position is for starting the cold engine 30 MS 311, MS 391 If engine trouble occurs, first check whether use the "...cover plate mounting kit" (special accessory). engine is switched off - ignition is running or can start Warm start l - this position is for starting the warm engine - N...
...of the Master Control lever STOP 0 Stop 0 - after starting, bring the engine up to adjust the idle speed adjusting screw (LA), see "Setting the carburetor". this position is for starting the cold engine 30 MS 311, MS 391 If engine trouble occurs, first check whether use the "...cover plate mounting kit" (special accessory). engine is switched off - ignition is running or can start Warm start l - this position is for starting the warm engine - N...
Product Instruction Manual
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... the engine was flooded There are two ways to jump from the cold start n position to the operating position F. Switching to the warm start n position is only possible from the warm start l position. after starting acceleration n - thumb wrapped around the handlebar MS 311, MS 391 31 Simultaneously pressing the throttle trigger interlock and blipping the throttle trigger...
... the engine was flooded There are two ways to jump from the cold start n position to the operating position F. Switching to the warm start n position is only possible from the warm start l position. after starting acceleration n - thumb wrapped around the handlebar MS 311, MS 391 31 Simultaneously pressing the throttle trigger interlock and blipping the throttle trigger...
Product Instruction Manual
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...KN 0001BA022 KN N with machines without an additional manual fuel pump, it a brisk strong pull - one minute) N Hold and start the chain saw MS 311, MS 391 set master control lever (4) 0001BA021 KN N Move the Master Control lever (1) to prime the fuel line. For this reason..., press the button again before each additional starting acceleration n N Press the button on the handlebar - if engine is blocked N Simultaneously ...
...KN 0001BA022 KN N with machines without an additional manual fuel pump, it a brisk strong pull - one minute) N Hold and start the chain saw MS 311, MS 391 set master control lever (4) 0001BA021 KN N Move the Master Control lever (1) to prime the fuel line. For this reason..., press the button again before each additional starting acceleration n N Press the button on the handlebar - if engine is blocked N Simultaneously ...
Product Instruction Manual
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...trigger (2); N Move the Master Control lever to starting acceleration n in time, the engine may be flooded. If the engine does not start N Pull the hand guard toward the handlebar The chain brake is cold MS 311, MS 391 33 afterwards simultaneously press the throttle trigger interlock...Set the Master Control lever to clear the combustion chamber N Replace the spark plug - to starting acceleration n to the stop position 0 If the Master Control lever was not returned from the position starting acceleration n - see "Spark plug" N Dry spark plug N Crank the engine several ...
...trigger (2); N Move the Master Control lever to starting acceleration n in time, the engine may be flooded. If the engine does not start N Pull the hand guard toward the handlebar The chain brake is cold MS 311, MS 391 33 afterwards simultaneously press the throttle trigger interlock...Set the Master Control lever to clear the combustion chamber N Replace the spark plug - to starting acceleration n to the stop position 0 If the Master Control lever was not returned from the position starting acceleration n - see "Spark plug" N Dry spark plug N Crank the engine several ...
Product Instruction Manual
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... electrodes are badly eroded. N Clean dirty spark plug. Wrong fuel mix (too much oil in operation. see "Starting / Stopping the Engine". MS 311, MS 391 39 Spark Plug If engine is down on power, difficult to start or runs poorly at idling speed, first check the spark plug. Rectify problems which may result in trouble...
... electrodes are badly eroded. N Clean dirty spark plug. Wrong fuel mix (too much oil in operation. see "Starting / Stopping the Engine". MS 311, MS 391 39 Spark Plug If engine is down on power, difficult to start or runs poorly at idling speed, first check the spark plug. Rectify problems which may result in trouble...
Product Instruction Manual
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...operating conditions are difficult (very dusty work or daily after finishing work area, resinrich wood, tropical wood, etc.), shorten the specified intervals accordingly. English before starting work after each refueling stop weekly monthly every 12 months if problem if damaged if required Complete machine Visual inspection (condition, leaks) Clean X X X ... (wear, damage) X Guide bar Clean and turn over Deburr X X Replace X X Chain sprocket Check X Air filter Clean Replace X X X Antivibration elements Check X Have replaced by dealer1) X X MS 311, MS 391 47
...operating conditions are difficult (very dusty work or daily after finishing work area, resinrich wood, tropical wood, etc.), shorten the specified intervals accordingly. English before starting work after each refueling stop weekly monthly every 12 months if problem if damaged if required Complete machine Visual inspection (condition, leaks) Clean X X X ... (wear, damage) X Guide bar Clean and turn over Deburr X X Replace X X Chain sprocket Check X Air filter Clean Replace X X X Antivibration elements Check X Have replaced by dealer1) X X MS 311, MS 391 47
Product Instruction Manual
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... 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 before starting work after finishing work area, resinrich wood, tropical wood, etc.), shorten the...
... 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 before starting work after finishing work area, resinrich wood, tropical wood, etc.), shorten the...
Product Instruction Manual
Page 52
...designed to reduce the transmission of vibrations created by the engine and cutting attachment to make engine starting easier - Carburetor is designed to reduce the risk of fire. 16 Front Hand Guard Provides ...Oil Filler Cap For closing the fuel tank. 20 Master Control Lever Lever for choke control, starting throttle, run and stop switch position. 21 Throttle Trigger Controls the speed of the engine. 22... located at the front of the saw. 18 Starter Grip The grip of the pull starter, for starting the engine. 19 Fuel Filler Cap For closing the oil tank. 15 Muffler (with the ignition lead....
...designed to reduce the transmission of vibrations created by the engine and cutting attachment to make engine starting easier - Carburetor is designed to reduce the risk of fire. 16 Front Hand Guard Provides ...Oil Filler Cap For closing the fuel tank. 20 Master Control Lever Lever for choke control, starting throttle, run and stop switch position. 21 Throttle Trigger Controls the speed of the engine. 22... located at the front of the saw. 18 Starter Grip The grip of the pull starter, for starting the engine. 19 Fuel Filler Cap For closing the oil tank. 15 Muffler (with the ignition lead....