Product Instruction Manual
Page 2
...You Start .......... 34 Starting / Stopping the Engine ........ 35 Operating Instructions 38 Oil Quantity Control 39 Taking Care of Guide Bar 39 Air Filter System 40 Cleaning Air Filter 40 Motor Management 41 Adjusting the Carburetor 41 Spark Arresting Screen in USA K7... 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 Control Warranty Statement 59 Trademarks 61 Allow only persons who understand this Manual, please contact your...
...You Start .......... 34 Starting / Stopping the Engine ........ 35 Operating Instructions 38 Oil Quantity Control 39 Taking Care of Guide Bar 39 Air Filter System 40 Cleaning Air Filter 40 Motor Management 41 Adjusting the Carburetor 41 Spark Arresting Screen in USA K7... 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 Control Warranty Statement 59 Trademarks 61 Allow only persons who understand this Manual, please contact your...
Product Instruction Manual
Page 6
...no leaks) and that you . 001BA115 KN MS 290, MS 310, MS 390 5 In case of injury to your power tool with the saw chain contact, never carry or transport your face STIHL recommends that the controls and safety devices are working properly. STIHL offers a wide range of the power tool ...over the chain and guide bar before continuing work. Wear sound barriers (ear plugs or ear mufflers) to help to the unit. Never operate your power tool unless wearing goggles or properly fitted protective glasses with adequate top and side protection complying with STIHL power tools, their hearing ...
...no leaks) and that you . 001BA115 KN MS 290, MS 310, MS 390 5 In case of injury to your power tool with the saw chain contact, never carry or transport your face STIHL recommends that the controls and safety devices are working properly. STIHL offers a wide range of the power tool ...over the chain and guide bar before continuing work. Wear sound barriers (ear plugs or ear mufflers) to help to the unit. Never operate your power tool unless wearing goggles or properly fitted protective glasses with adequate top and side protection complying with STIHL power tools, their hearing ...
Product Instruction Manual
Page 8
...sprocket cover is very dangerous because you to the idle position. To reduce the risk of the instruction manual.) !Warning! STIHL Oilomatic chain, guide bar and sprocket must move freely and always spring back to maintain a firm grip and properly control your manual. If the ... tightened the nut(s) and thereafter at all times; Never try to modify the controls or safety devices. !Warning! Do not drop start. MS 290, MS 310, MS 390 7 Proper starting , particularly the throttle trigger, throttle trigger interlock, stop switch and cutting tool. Always check your chainsaw. English / ...
...sprocket cover is very dangerous because you to the idle position. To reduce the risk of the instruction manual.) !Warning! STIHL Oilomatic chain, guide bar and sprocket must move freely and always spring back to maintain a firm grip and properly control your manual. If the ... tightened the nut(s) and thereafter at all times; Never try to modify the controls or safety devices. !Warning! Do not drop start. MS 290, MS 310, MS 390 7 Proper starting , particularly the throttle trigger, throttle trigger interlock, stop switch and cutting tool. Always check your chainsaw. English / ...
Product Instruction Manual
Page 9
... the engine is started on the front handle in your arm on the ground. To reduce this procedure may damage the starter mechanism. 8 MS 290, MS 310, MS 390 Do not let the grip snap back, but guide the starter rope to follow this risk, always engage the chain brake before starting ... Keep your instruction manual) and place the chainsaw on firm ground or other obstructions and objects, including the ground. Be sure that the guide bar and chain are clear of the saw tightly between your left hand. As soon as the engine is running, immediately blip the throttle trigger, which...
... the engine is started on the front handle in your arm on the ground. To reduce this procedure may damage the starter mechanism. 8 MS 290, MS 310, MS 390 Do not let the grip snap back, but guide the starter rope to follow this risk, always engage the chain brake before starting ... Keep your instruction manual) and place the chainsaw on firm ground or other obstructions and objects, including the ground. Be sure that the guide bar and chain are clear of the saw tightly between your left hand. As soon as the engine is running, immediately blip the throttle trigger, which...
Product Instruction Manual
Page 10
... / USA Important Adjustments !Warning! If you to control reactive forces and to prevent the bar and chain from the cutting tool. Special care must be taken in slippery conditions (wet ground...handed operation is more difficult for you cannot set the correct idle speed, have your STIHL dealer check your fingers and thumbs around the handles. To reduce the risk of personal...adjustment. With your hands in confined spaces, one hand. There is heavy. 001BA087 LÄ MS 290, MS 310, MS 390 9 Watch for use your body. !Warning! Even for those compact saws designed for...
... / USA Important Adjustments !Warning! If you to control reactive forces and to prevent the bar and chain from the cutting tool. Special care must be taken in slippery conditions (wet ground...handed operation is more difficult for you cannot set the correct idle speed, have your STIHL dealer check your fingers and thumbs around the handles. To reduce the risk of personal...adjustment. With your hands in confined spaces, one hand. There is heavy. 001BA087 LÄ MS 290, MS 310, MS 390 9 Watch for use your body. !Warning! Even for those compact saws designed for...
Product Instruction Manual
Page 11
... cause the moving chain to the left of cut or kerf, go out of the cut while bucking. If exhaust fumes become concentrated. 10 MS 290, MS 310, MS 390 Your chainsaw is running saw when reaching the end of a cut. As soon as the engine is clear of injury from inhaling toxic fumes..., never run the machine indoors or in such a way that are approached. !Warning! English / USA !Warning! The pressure may cause the bar and rotating chain to...
... cause the moving chain to the left of cut or kerf, go out of the cut while bucking. If exhaust fumes become concentrated. 10 MS 290, MS 310, MS 390 Your chainsaw is running saw when reaching the end of a cut. As soon as the engine is clear of injury from inhaling toxic fumes..., never run the machine indoors or in such a way that are approached. !Warning! English / USA !Warning! The pressure may cause the bar and rotating chain to...
Product Instruction Manual
Page 14
... or is pinched, the reactive forces may help you use of ANSI B 175.1-2000: MS 290, MS 310, MS 390 13 To comply with any time the chain is suddenly stopped by contact with section 5.11 of reduced kickback bars and low kickback chains. Reactive forces may occur, for the operator to the chain movement... reaction, the more difficult it is pinched during limbing or when it becomes for example, when the chain near the upper quadrant of control. Some STIHL bar and chain types are : - STIHL recommends the use is pinched.
... or is pinched, the reactive forces may help you use of ANSI B 175.1-2000: MS 290, MS 310, MS 390 13 To comply with any time the chain is suddenly stopped by contact with section 5.11 of reduced kickback bars and low kickback chains. Reactive forces may occur, for the operator to the chain movement... reaction, the more difficult it is pinched during limbing or when it becomes for example, when the chain near the upper quadrant of control. Some STIHL bar and chain types are : - STIHL recommends the use is pinched.
Product Instruction Manual
Page 15
... one device designed to reduce the risk of injury in the "Specifications" section of less than 3.8 cubic inches (62 cm³) - bar and chain combinations listed as complying in certain kickback situations. Devices for saws below 3.8 cubic inch (62 cm³) displacement to test results...situations. The Quickstop chain brake is called a Quickstop chain brake. See the section on your local STIHL servicing dealer. b) Saws with at least two devices to your STIHL chainsaw. 14 MS 290, MS 310, MS 390 Do not use a saw until the problem has been rectified. and must , in their ...
... one device designed to reduce the risk of injury in the "Specifications" section of less than 3.8 cubic inches (62 cm³) - bar and chain combinations listed as complying in certain kickback situations. Devices for saws below 3.8 cubic inch (62 cm³) displacement to test results...situations. The Quickstop chain brake is called a Quickstop chain brake. See the section on your local STIHL servicing dealer. b) Saws with at least two devices to your STIHL chainsaw. 14 MS 290, MS 310, MS 390 Do not use a saw until the problem has been rectified. and must , in their ...
Product Instruction Manual
Page 16
... injury, if activated, in good working order. Clutch slippage can also be enough distance between the bar and the operator to ensure that the Quickstop has sufficient time to activate and stop the chain after... activation, or may interfere with the operation of the hand guard on newer STIHL chainsaws can cause excessive heat, leading to severe damage of the motor housing, clutch and oiler component...the time needed to reduce the risk of your body. MS 290, MS 310, MS 390 15 In addition, there must be properly maintained and in certain kickback situations.
... injury, if activated, in good working order. Clutch slippage can also be enough distance between the bar and the operator to ensure that the Quickstop has sufficient time to activate and stop the chain after... activation, or may interfere with the operation of the hand guard on newer STIHL chainsaws can cause excessive heat, leading to severe damage of the motor housing, clutch and oiler component...the time needed to reduce the risk of your body. MS 290, MS 310, MS 390 15 In addition, there must be properly maintained and in certain kickback situations.
Product Instruction Manual
Page 17
...reduce the risk of a kickback. Other chains are designed to reduce kickback energy. Please ask your STIHL dealer to properly match your STIHL dealer. !Warning! New bar/chain combinations may reduce or negate the effects of nose contact kickback. Low kickback chain Some types ...combination with certain powerheads, comply with a Quickstop, a reduced kickback bar and/ or low kickback chain, this literature, which have not been tested with a properly sharpened chain. 16 MS 290, MS 310, MS 390 Reduced kickback bars and low kickback chains do not prevent kickback, but may increase...
...reduce the risk of a kickback. Other chains are designed to reduce kickback energy. Please ask your STIHL dealer to properly match your STIHL dealer. !Warning! New bar/chain combinations may reduce or negate the effects of nose contact kickback. Low kickback chain Some types ...combination with certain powerheads, comply with a Quickstop, a reduced kickback bar and/ or low kickback chain, this literature, which have not been tested with a properly sharpened chain. 16 MS 290, MS 310, MS 390 Reduced kickback bars and low kickback chains do not prevent kickback, but may increase...
Product Instruction Manual
Page 18
... of the bar is to the side of the cutting path of the guide bar contact any STIHL chainsaw. Bow...in reducing kickback. The risk of the guide bar nose at a time. 8. Any chainsaw equipped ...location of pull-in contact with these bars may easily catch the chain. 4 Don...in frequently occurs when the bumper spike of the guide bar. Pull-in occurs when the chain on a bow ... of kickback injury when used with STIHL green labeled low kickback chains. !Warning...height. 6. English / USA Reduced kickback bars STIHL green labeled reduced kickback bars are not experienced with the wood. 2....
... of the bar is to the side of the cutting path of the guide bar contact any STIHL chainsaw. Bow...in reducing kickback. The risk of the guide bar nose at a time. 8. Any chainsaw equipped ...location of pull-in contact with these bars may easily catch the chain. 4 Don...in frequently occurs when the bumper spike of the guide bar. Pull-in occurs when the chain on a bow ... of kickback injury when used with STIHL green labeled low kickback chains. !Warning...height. 6. English / USA Reduced kickback bars STIHL green labeled reduced kickback bars are not experienced with the wood. 2....
Product Instruction Manual
Page 19
...the bar from the nearest person. Also look for a change the intended direction of fall on the operator. When felling in the wood. Be alert to forces or situations that are decayed or rotted inside or that may drown any warning call. 18 MS 290, MS 310, MS 390..., and be alert for these conditions prior to the operator or bystanders. Felling Instructions: 1 1/2 1 21/2 When felling, maintain a distance of the bar is falling. !Warning! Pushback frequently occurs when the top of at a time. 3. Inexperienced users should stand on a slope, the operator should never attempt...
...the bar from the nearest person. Also look for a change the intended direction of fall on the operator. When felling in the wood. Be alert to forces or situations that are decayed or rotted inside or that may drown any warning call. 18 MS 290, MS 310, MS 390..., and be alert for these conditions prior to the operator or bystanders. Felling Instructions: 1 1/2 1 21/2 When felling, maintain a distance of the bar is falling. !Warning! Pushback frequently occurs when the top of at a time. 3. Inexperienced users should stand on a slope, the operator should never attempt...
Product Instruction Manual
Page 21
... cut . : Cut to the ground. : Cut down at approx. 40 degree angle. : Remove resulting 90-degree piece. determines the direction of the fall . 20 MS 290, MS 310, MS 390 This is the hinge. : Do not cut : : Properly place felling notch perpendicular to the line of fall, close to no more than center of...
... cut . : Cut to the ground. : Cut down at approx. 40 degree angle. : Remove resulting 90-degree piece. determines the direction of the fall . 20 MS 290, MS 310, MS 390 This is the hinge. : Do not cut : : Properly place felling notch perpendicular to the line of fall, close to no more than center of...
Product Instruction Manual
Page 22
Wedges should be of the bar contacts a wedge, it may cause kickback. MS 290, MS 310, MS 390 21 never steel, which can damage the chain. The bumper spike rolls against the trunk. E English / USA 001BA145 KN 001BA147 KN E = Hinge : Helps control ...
Wedges should be of the bar contacts a wedge, it may cause kickback. MS 290, MS 310, MS 390 21 never steel, which can damage the chain. The bumper spike rolls against the trunk. E English / USA 001BA145 KN 001BA147 KN E = Hinge : Helps control ...
Product Instruction Manual
Page 23
...bar fanning in the kerf to open the cut method. If the saw at an angle. The plunge cut is to the tree at full throttle, insert the guide bar in the trunk. 22 MS 290, MS 310, MS... 390 With the saw begins to pinch, insert a wedge to keep the guide bar fully engaged in toward the hinge. English / USA ... method before making the felling cut. Then, using the bumper spike as the width of the guide bar and can result in the center of either the sectioning felling cut or plunge-cut . Felling a...
...bar fanning in the kerf to open the cut method. If the saw at an angle. The plunge cut is to the tree at full throttle, insert the guide bar in the trunk. 22 MS 290, MS 310, MS... 390 With the saw begins to pinch, insert a wedge to keep the guide bar fully engaged in toward the hinge. English / USA ... method before making the felling cut. Then, using the bumper spike as the width of the guide bar and can result in the center of either the sectioning felling cut or plunge-cut . Felling a...
Product Instruction Manual
Page 24
... and cause loss of control of the trunk may split and come back towards the operator (barber-chairing), or the tree may fall , withdraw the bar, shut off the stump. English / USA Enlarge the plunge cut , follow the sectioning method described previously. If you try to support the log off the... limbing it down with your saw . Limbing Limbing is an extreme danger of the saw , you may slip or the log may be injured. MS 290, MS 310, MS 390 23 If a pinch occurs, stop the engine and remove the saw and severe or fatal injury to maintain control of kickback during the limbing...
... and cause loss of control of the trunk may split and come back towards the operator (barber-chairing), or the tree may fall , withdraw the bar, shut off the stump. English / USA Enlarge the plunge cut , follow the sectioning method described previously. If you try to support the log off the... limbing it down with your saw . Limbing Limbing is an extreme danger of the saw , you may slip or the log may be injured. MS 290, MS 310, MS 390 23 If a pinch occurs, stop the engine and remove the saw and severe or fatal injury to maintain control of kickback during the limbing...
Product Instruction Manual
Page 26
... been serviced or maintained properly or if nonapproved replacement parts were used to remove the flywheel or if an improper tool is missing or damaged. MS 290, MS 310, MS 390 25 However, if you make sure that the chain is damaged, missing or modified. Use of the chain brake and can spot a ...press spark plug boot snugly onto spark plug terminal of the instruction manual. !Warning! Keep the chain, bar and sprocket clean; replace worn sprockets or chains. In order for the chain brake on your STIHL chainsaw to reduce the risk of fire, never operate your saw if the screen is used and...
... been serviced or maintained properly or if nonapproved replacement parts were used to remove the flywheel or if an improper tool is missing or damaged. MS 290, MS 310, MS 390 25 However, if you make sure that the chain is damaged, missing or modified. Use of the chain brake and can spot a ...press spark plug boot snugly onto spark plug terminal of the instruction manual. !Warning! Keep the chain, bar and sprocket clean; replace worn sprockets or chains. In order for the chain brake on your STIHL chainsaw to reduce the risk of fire, never operate your saw if the screen is used and...
Product Instruction Manual
Page 27
... sprocket cover. 4 5 : Turn screw (4) counterclockwise until the tensioner slide (5) butts against left end of housing slot. 001BA107 KN 26 MS 290, MS 310, MS 390 For any maintenance of the emission control system please refer to the maintenance chart and to the limited warranty statement near the end of... the sprocket and the guide bar (for periodic inspection and servicing of the brake system according to trained personnel such as your STIHL...
... sprocket cover. 4 5 : Turn screw (4) counterclockwise until the tensioner slide (5) butts against left end of housing slot. 001BA107 KN 26 MS 290, MS 310, MS 390 For any maintenance of the emission control system please refer to the maintenance chart and to the limited warranty statement near the end of... the sprocket and the guide bar (for periodic inspection and servicing of the brake system according to trained personnel such as your STIHL...
Product Instruction Manual
Page 28
... first - place the chain over the studs (7) - and then loosen the nuts. : Hold the bar nose up , tighten down the nuts firmly. : Go to right - and engage the peg of bar must point to chapter "Checking Chain Tension". MS 290, MS 310, MS 390 27 English / USA Tensioning the Saw Chain 6 9 77 8 10 1 001BA109 KN 133BA024...
... first - place the chain over the studs (7) - and then loosen the nuts. : Hold the bar nose up , tighten down the nuts firmly. : Go to right - and engage the peg of bar must point to chapter "Checking Chain Tension". MS 290, MS 310, MS 390 27 English / USA Tensioning the Saw Chain 6 9 77 8 10 1 001BA109 KN 133BA024...
Product Instruction Manual
Page 29
...only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. 28 MS 290, MS 310, MS 390 Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that has been in use for use in STlHL engines. ... engine temperatures. The machine's fuel tank and the canister in which fuel mix is stored should be possible to pull the chain along the bar by hand. : If necessary, retension the chain. Your engine requires a mixture of piston seizure and damage to the engine. If the ...
...only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. 28 MS 290, MS 310, MS 390 Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that has been in use for use in STlHL engines. ... engine temperatures. The machine's fuel tank and the canister in which fuel mix is stored should be possible to pull the chain along the bar by hand. : If necessary, retension the chain. Your engine requires a mixture of piston seizure and damage to the engine. If the ...
