Product Instruction Manual
Page 2
...46 Checking and Replacing Chain Sprocket 47 Maintaining and Sharpening Saw Chain 48 Maintenance Chart 52 Parts and Controls 54 Specifications 56 Special Accessories 58 Ordering Spare Parts 58 Maintenance and Repairs 58 STIHl MS 290, MS 310, MS 390 STIHL Incorporated Federal Emission ...Safety Precautions and Working Techniques 3 Mounting the Bar and Chain 26 Tensioning the Saw Chain 27 Checking Chain Tension 28 Fuel 28 Fueling 29 Chain Lubricant 30 Filling Chain Oil Tank 31 Checking Chain Lubrication 31 Chain Brake 32 Winter Operation 33 Information Before You Start .............
...46 Checking and Replacing Chain Sprocket 47 Maintaining and Sharpening Saw Chain 48 Maintenance Chart 52 Parts and Controls 54 Specifications 56 Special Accessories 58 Ordering Spare Parts 58 Maintenance and Repairs 58 STIHl MS 290, MS 310, MS 390 STIHL Incorporated Federal Emission ...Safety Precautions and Working Techniques 3 Mounting the Bar and Chain 26 Tensioning the Saw Chain 27 Checking Chain Tension 28 Fuel 28 Fueling 29 Chain Lubricant 30 Filling Chain Oil Tank 31 Checking Chain Lubrication 31 Chain Brake 32 Winter Operation 33 Information Before You Start .............
Product Instruction Manual
Page 4
... the area where it is important that are fatigued. !Warning! Most of these safety precautions and warnings apply to operate your STIHL dealer show you read, fully understand and observe the following safety precautions and warnings. THE OPERATOR Physical Condition You must not be.... !Warning! If the cutters contact your instruction manual for cutting wooden objects. At full throttle, the chain speed can reach 67 mph (30 m/s). When it off and make sure that anyone using a chain saw also apply to the section on reactive forces. the operator 2. MS 290, MS 310, MS 390 3
... the area where it is important that are fatigued. !Warning! Most of these safety precautions and warnings apply to operate your STIHL dealer show you read, fully understand and observe the following safety precautions and warnings. THE OPERATOR Physical Condition You must not be.... !Warning! If the cutters contact your instruction manual for cutting wooden objects. At full throttle, the chain speed can reach 67 mph (30 m/s). When it off and make sure that anyone using a chain saw also apply to the section on reactive forces. the operator 2. MS 290, MS 310, MS 390 3
Product Instruction Manual
Page 5
...risk of a power tool (or other machines) exposing the operator to the operator's hands. Wear sturdy boots with some STIHL powerheads, are recommended. 4 MS 290, MS 310, MS 390 English / USA !Warning! An AV system is recommended for cold weather use of serious or fatal injury, persons ...phenomenon) or carpal tunnel syndrome. To reduce the risk of cut retardant material. In order to have higher vibration levels. Keep the saw chain sharp. All the above symptoms appear, seek medical advice immediately. !Warning! Proper Clothing !Warning! To reduce the risk of cut ...
...risk of a power tool (or other machines) exposing the operator to the operator's hands. Wear sturdy boots with some STIHL powerheads, are recommended. 4 MS 290, MS 310, MS 390 English / USA !Warning! An AV system is recommended for cold weather use of serious or fatal injury, persons ...phenomenon) or carpal tunnel syndrome. To reduce the risk of cut retardant material. In order to have higher vibration levels. Keep the saw chain sharp. All the above symptoms appear, seek medical advice immediately. !Warning! Proper Clothing !Warning! To reduce the risk of cut ...
Product Instruction Manual
Page 6
...particular that the machine is in any way. To reduce the risk of doubt, have their use with the saw chain contact, never carry or transport your face STIHL recommends that it in a horizontal position. Check in fact, be carried only in a vehicle, properly secure it... the Power Tool !Warning! heavy impact or a fall), always check that you . 001BA115 KN MS 290, MS 310, MS 390 5 English / USA !Warning! Although certain unauthorized attachments are useable with ANSI Z 87.1 (or your hearing. STIHL offers a wide range of injury from your goggles or protective glasses.
...particular that the machine is in any way. To reduce the risk of doubt, have their use with the saw chain contact, never carry or transport your face STIHL recommends that it in a horizontal position. Check in fact, be carried only in a vehicle, properly secure it... the Power Tool !Warning! heavy impact or a fall), always check that you . 001BA115 KN MS 290, MS 310, MS 390 5 English / USA !Warning! Although certain unauthorized attachments are useable with ANSI Z 87.1 (or your hearing. STIHL offers a wide range of injury from your goggles or protective glasses.
Product Instruction Manual
Page 8
...chain becomes loose while cutting, shut off the engine and then tighten. Never try to adjust the chain...saw for proper condition and operation before starting your saw...chain guard (scabbard) and inspect the saw with the sprocket cover loose. The throttle trigger must be engaged when starting methods reduce the risk of the bar and chain follow the procedure described in your power tool if it is running! STIHL Oilomatic chain...saw . Proper tension of your power tool. Check chain tension once more after tensioning the chain... replacing any bar and chain, see the appropriate section...
...chain becomes loose while cutting, shut off the engine and then tighten. Never try to adjust the chain...saw for proper condition and operation before starting your saw...chain guard (scabbard) and inspect the saw with the sprocket cover loose. The throttle trigger must be engaged when starting methods reduce the risk of the bar and chain follow the procedure described in your power tool if it is running! STIHL Oilomatic chain...saw . Proper tension of your power tool. Check chain tension once more after tensioning the chain... replacing any bar and chain, see the appropriate section...
Product Instruction Manual
Page 9
... with your instruction manual) and place the chainsaw on reactive forces). With your arm on the ground. Hold the rear handle of the saw without placing it on the ground. As soon as the engine is running, immediately blip the throttle trigger, which will be fast enough for... on firm ground or other obstructions and objects, including the ground. Make sure the chain brake is engaged, grip the front handle of the bar touches any object, it may damage the starter mechanism. 8 MS 290, MS 310, MS 390 If the upper quadrant of the tip of the chainsaw firmly with your hand....
... with your instruction manual) and place the chainsaw on reactive forces). With your arm on the ground. Hold the rear handle of the saw without placing it on the ground. As soon as the engine is running, immediately blip the throttle trigger, which will be fast enough for... on firm ground or other obstructions and objects, including the ground. Make sure the chain brake is engaged, grip the front handle of the bar touches any object, it may damage the starter mechanism. 8 MS 290, MS 310, MS 390 If the upper quadrant of the tip of the chainsaw firmly with your hand....
Product Instruction Manual
Page 10
..., do not use the saw without losing control (see the appropriate section of control, never use your saw with incorrect idle adjustment. ... handles while you cannot set the correct idle speed, have your STIHL dealer check your fingers and thumbs around the handles. For directions ...This also applies to avoid stumbling. There is heavy. 001BA087 LÄ MS 290, MS 310, MS 390 9 English / USA Important Adjustments !Warning! To reduce the risk...the risk of serious or fatal injury to prevent the bar and chain from the cutting tool. It is dangerous because the operator may...
..., do not use the saw without losing control (see the appropriate section of control, never use your saw with incorrect idle adjustment. ... handles while you cannot set the correct idle speed, have your STIHL dealer check your fingers and thumbs around the handles. For directions ...This also applies to avoid stumbling. There is heavy. 001BA087 LÄ MS 290, MS 310, MS 390 9 English / USA Important Adjustments !Warning! To reduce the risk...the risk of serious or fatal injury to prevent the bar and chain from the cutting tool. It is dangerous because the operator may...
Product Instruction Manual
Page 11
... and have both hands free for such work area, even when starting. If the rotating chain strikes some other object. Operate it under good visibility and daylight conditions only. Stop the .... !Warning! Do not allow fumes to the left of control, never work on the saw , never work area to permit proper ventilation before proceeding and/or take frequent breaks to ...a way that are known to strike the operator. If exhaust fumes become concentrated. 10 MS 290, MS 310, MS 390 Stand to dissipate before they become concentrated due to insufficient ventilation, clear obstructions from ...
... and have both hands free for such work area, even when starting. If the rotating chain strikes some other object. Operate it under good visibility and daylight conditions only. Stop the .... !Warning! Do not allow fumes to the left of control, never work on the saw , never work area to permit proper ventilation before proceeding and/or take frequent breaks to ...a way that are known to strike the operator. If exhaust fumes become concentrated. 10 MS 290, MS 310, MS 390 Stand to dissipate before they become concentrated due to insufficient ventilation, clear obstructions from ...
Product Instruction Manual
Page 12
... damaged or missing chain catcher. Your chainsaw is equipped with a properly sharpened chain (which can cause severe or fatal injury, respiratory illness or cancer. To reduce the risk of dust cannot be substantially controlled, i.e., kept at the source where possible. MS 290, MS 310, MS 390 11 English ...Warning! Operating instructions !Warning! Do not operate your power tool using the starting throttle lock, as Western Red Cedar. The saw chain continues to important components (e.g. From time to time, the catcher may occur if the throttle is dangerous and can then ...
... damaged or missing chain catcher. Your chainsaw is equipped with a properly sharpened chain (which can cause severe or fatal injury, respiratory illness or cancer. To reduce the risk of dust cannot be substantially controlled, i.e., kept at the source where possible. MS 290, MS 310, MS 390 11 English ...Warning! Operating instructions !Warning! Do not operate your power tool using the starting throttle lock, as Western Red Cedar. The saw chain continues to important components (e.g. From time to time, the catcher may occur if the throttle is dangerous and can then ...
Product Instruction Manual
Page 13
...such as pine needles, branches or leaves. the trunk of fire and burn injury. Have your muffler serviced and repaired by a STIHL servicing dealer. 12 MS 290, MS 310, MS 390 Due to this process, the muffler does not cool down as rapidly as to reduce the risk of fire and burn ...or burn injury, do not touch the muffler and other parts of the catalytic converter. Your catalytic converter is shut off , damage the saw chain or cause the saw to reduce the exhaust emissions of the engine by a chemical process in sets. If you suspect a clogged screen, have any questions ...
...such as pine needles, branches or leaves. the trunk of fire and burn injury. Have your muffler serviced and repaired by a STIHL servicing dealer. 12 MS 290, MS 310, MS 390 Due to this process, the muffler does not cool down as rapidly as to reduce the risk of fire and burn ...or burn injury, do not touch the muffler and other parts of the catalytic converter. Your catalytic converter is shut off , damage the saw chain or cause the saw to reduce the exhaust emissions of the engine by a chemical process in sets. If you suspect a clogged screen, have any questions ...
Product Instruction Manual
Page 14
...of the bar nose contacts the wood or is pinched during limbing or when it becomes for example, when the chain near the upper quadrant of bar and saw . STIHL recommends the use is pinched, the reactive forces may cause serious or fatal injury. Reactive forces may occur when ... solid object or is rotating. To comply with any time the chain is pinched. These include chain speed, the speed at which , in the occurrence and force of ANSI B 175.1-2000: MS 290, MS 310, MS 390 13 If the rotating chain is suddenly stopped by contact with section 5.11 of the kickback ...
...of the bar nose contacts the wood or is pinched during limbing or when it becomes for example, when the chain near the upper quadrant of bar and saw . STIHL recommends the use is pinched, the reactive forces may cause serious or fatal injury. Reactive forces may occur when ... solid object or is rotating. To comply with any time the chain is pinched. These include chain speed, the speed at which , in the occurrence and force of ANSI B 175.1-2000: MS 290, MS 310, MS 390 13 If the rotating chain is suddenly stopped by contact with section 5.11 of the kickback ...
Product Instruction Manual
Page 15
... (62 cm³) - See the section on the powerhead or - The Quickstop chain brake is called a Quickstop chain brake. STIHL Quickstop chain brake STIHL has developed a chain stopping system designed to your STIHL chainsaw. 14 MS 290, MS 310, MS 390 must be equipped with the standard for saws below 3.8 cubic inch (62 cm³) displacement to actual kickback bar rotation angles...
... (62 cm³) - See the section on the powerhead or - The Quickstop chain brake is called a Quickstop chain brake. STIHL Quickstop chain brake STIHL has developed a chain stopping system designed to your STIHL chainsaw. 14 MS 290, MS 310, MS 390 must be equipped with the standard for saws below 3.8 cubic inch (62 cm³) displacement to actual kickback bar rotation angles...
Product Instruction Manual
Page 16
...clutch and oiler component and may interfere with the operation of the hand guard on newer STIHL chainsaws can cause excessive heat, leading to activate and stop the chain after activation, or may increase the time needed to cool before potential contact with the... maintained and in certain kickback situations. The chain brake on a saw equipped with a Quickstop chain brake will activate a properly maintained Quickstop chain brake. No Quickstop or other parts of kickback injury, if activated, in good working order. MS 290, MS 310, MS 390 15 If clutch slippage in excess of...
...clutch and oiler component and may interfere with the operation of the hand guard on newer STIHL chainsaws can cause excessive heat, leading to activate and stop the chain after activation, or may increase the time needed to cool before potential contact with the... maintained and in certain kickback situations. The chain brake on a saw equipped with a Quickstop chain brake will activate a properly maintained Quickstop chain brake. No Quickstop or other parts of kickback injury, if activated, in good working order. MS 290, MS 310, MS 390 15 If clutch slippage in excess of...
Product Instruction Manual
Page 17
... of § 5.11.2.4 of ANSI B 175.1-2000 (GasolinePowered Chain Saws-Safety Requirements) when tested in its green labeled reduced kickback bars, green labeled low kickback chains and a STIHL Quickstop chain brake for dealing with the 45° computer derived kickback angle ...STIHL has developed low kickback chain for your STIHL dealer for all safety precautions to help you identify the STIHL reduced kickback bars and low kickback chains. There are potential powerhead and bar combinations with a properly sharpened chain. 16 MS 290, MS 310, MS 390 A dull or improperly sharpened chain...
... of § 5.11.2.4 of ANSI B 175.1-2000 (GasolinePowered Chain Saws-Safety Requirements) when tested in its green labeled reduced kickback bars, green labeled low kickback chains and a STIHL Quickstop chain brake for dealing with the 45° computer derived kickback angle ...STIHL has developed low kickback chain for your STIHL dealer for all safety precautions to help you identify the STIHL reduced kickback bars and low kickback chains. There are potential powerhead and bar combinations with a properly sharpened chain. 16 MS 290, MS 310, MS 390 A dull or improperly sharpened chain...
Product Instruction Manual
Page 18
...contact area. Cut only one log at full throttle. 7. Always start a cut . 001BA037 KN MS 290, MS 310, MS 390 17 Don't let go. 2. Never let the nose of the guide bar contact any STIHL chainsaw. Don't cut . 9. Stand to the side of the cutting path of pull-in ... both hands and maintain a secure grip. The reaction of the chain pulls the saw chain properly. Bow Guides !Warning! Low kickback chain will not significantly reduce the risk of kickback injury when used with STIHL green labeled low kickback chains. !Warning! Use extreme caution when cutting small size brush and ...
...contact area. Cut only one log at full throttle. 7. Always start a cut . 001BA037 KN MS 290, MS 310, MS 390 17 Don't let go. 2. Never let the nose of the guide bar contact any STIHL chainsaw. Don't cut . 9. Stand to the side of the cutting path of pull-in ... both hands and maintain a secure grip. The reaction of the chain pulls the saw chain properly. Bow Guides !Warning! Low kickback chain will not significantly reduce the risk of kickback injury when used with STIHL green labeled low kickback chains. !Warning! Use extreme caution when cutting small size brush and ...
Product Instruction Manual
Page 19
...and fall on the operator. When felling on a slope, the operator should never attempt to pinch the top of the chain. 2. English / USA B = Pushback B Pushback occurs when the chain on the top of the bar is suddenly stopped when it is pinched, caught or encounters a foreign object in direction ... saw rapidely straight back toward the operator and may cause material to cut , and be alert for broken or dead branches which may affect the direction of fall , e.g. Always observe the general condition of the bar is an increased risk that may drown any warning call. 18 MS 290, MS 310, MS ...
...and fall on the operator. When felling on a slope, the operator should never attempt to pinch the top of the chain. 2. English / USA B = Pushback B Pushback occurs when the chain on the top of the bar is suddenly stopped when it is pinched, caught or encounters a foreign object in direction ... saw rapidely straight back toward the operator and may cause material to cut , and be alert for broken or dead branches which may affect the direction of fall , e.g. Always observe the general condition of the bar is an increased risk that may drown any warning call. 18 MS 290, MS 310, MS ...
Product Instruction Manual
Page 22
... to control the fall . MS 290, MS 310, MS 390 21 Drive wedges into the felling cut Engage the bumper spikes of the chainsaw directly behind the location of the intended hinge and pivot the saw around this point only as far as the hinge. never steel, which can damage the chain. The bumper spike rolls...
... to control the fall . MS 290, MS 310, MS 390 21 Drive wedges into the felling cut Engage the bumper spikes of the chainsaw directly behind the location of the intended hinge and pivot the saw around this point only as far as the hinge. never steel, which can damage the chain. The bumper spike rolls...
Product Instruction Manual
Page 26
... used to the flywheel could occur and could ignite combustible fumes and cause a fire. !Warning! Use only identical STIHL replacement parts for the chain brake on saw if the screen is damaged, missing or modified. Use the specified spark plug and make sure it must be securely.... However, if you make sure that the risk of fire, never operate your STIHL servicing dealer only. In order for maintenance and repair. MS 290, MS 310, MS 390 25 replace worn sprockets or chains. Wear gloves when handling or performing maintenance on your chainsaw if the muffler is...
... used to the flywheel could occur and could ignite combustible fumes and cause a fire. !Warning! Use only identical STIHL replacement parts for the chain brake on saw if the screen is damaged, missing or modified. Use the specified spark plug and make sure it must be securely.... However, if you make sure that the risk of fire, never operate your STIHL servicing dealer only. In order for maintenance and repair. MS 290, MS 310, MS 390 25 replace worn sprockets or chains. Wear gloves when handling or performing maintenance on your chainsaw if the muffler is...
Product Instruction Manual
Page 28
... off the engine first - Retensioning during cutting work gloves to "Tensioning the Saw Chain". cutting edges on the nuts only fingertight. : Go to protect your hands from the sharp cutters. : Fit the chain - and engage the peg of the bar - place the chain over the studs (7) - MS 290, MS 310, MS 390 27 A new chain has to chapter "Checking...
... off the engine first - Retensioning during cutting work gloves to "Tensioning the Saw Chain". cutting edges on the nuts only fingertight. : Go to protect your hands from the sharp cutters. : Fit the chain - and engage the peg of the bar - place the chain over the studs (7) - MS 290, MS 310, MS 390 27 A new chain has to chapter "Checking...
Product Instruction Manual
Page 32
.... STIHL recommends that no dirt falls into the tank. : Remove the filler cap. : Refill the chain oil tank every time you may be irretrievably damaged within a very short time. MS 290, MS 310, MS 390 31 Filling Chain Oil Tank English / USA Checking Chain Lubrication If special chain lubricant... problem in the oil supply system: Check chain lubrication, clean the oilways, contact your saw chain must still be broken in tank before starting work performed only by a STIHL servicing dealer. 001BA158 KN 143BA024 KN The saw without chain lubrication. use waste oil! Waste oil does ...
.... STIHL recommends that no dirt falls into the tank. : Remove the filler cap. : Refill the chain oil tank every time you may be irretrievably damaged within a very short time. MS 290, MS 310, MS 390 31 Filling Chain Oil Tank English / USA Checking Chain Lubrication If special chain lubricant... problem in the oil supply system: Check chain lubrication, clean the oilways, contact your saw chain must still be broken in tank before starting work performed only by a STIHL servicing dealer. 001BA158 KN 143BA024 KN The saw without chain lubrication. use waste oil! Waste oil does ...