Instruction Manual
Page 3
... 8 Maintenance, Repair and Storage 33 8.1 Warnings and Instructions 33 9 Before Starting Work 33 9.1 Preparing the Chain Saw for Operation 33 10 Assembling the Chain Saw 34 10.1 Cutting Attachment 34 10.2 Mounting and Removing the Guide Bar and Chain 34 10.3 Tensioning the Chain 35 11 Lubricating the Saw Chain and Guide Bar 36 11.1 Bar and Chain Lubricant 36 11.2 Filling the Chain Oil Tank 36 11.3 Adjusting the Flow of Bar and Chain Oil 37 12 The Chain Brake 38...
... 8 Maintenance, Repair and Storage 33 8.1 Warnings and Instructions 33 9 Before Starting Work 33 9.1 Preparing the Chain Saw for Operation 33 10 Assembling the Chain Saw 34 10.1 Cutting Attachment 34 10.2 Mounting and Removing the Guide Bar and Chain 34 10.3 Tensioning the Chain 35 11 Lubricating the Saw Chain and Guide Bar 36 11.1 Bar and Chain Lubricant 36 11.2 Filling the Chain Oil Tank 36 11.3 Adjusting the Flow of Bar and Chain Oil 37 12 The Chain Brake 38...
Instruction Manual
Page 4
... the Saw Chain 57 23 Troubleshooting Guide 61 23.1 Chain saw 61 23.2 Adjusting Idle Speed 62 23.3 Clearing the Combustion Chamber 62 24 Specifications 63 24.1 EPA 63 24.2 STIHL MS 261 63 24.3 Chain Sprockets 63 24.4 Minimum Groove Depth of Guide Bars 64 24.5 Depth Gauge Setting 64 24.6 Symbols on the Chain Saw 64 24.7 Engineering Improvements 64 25 Combinations of Guide Bars and Saw Chains 65 25.1 STIHL MS 261 65 26 Replacement Parts and...
... the Saw Chain 57 23 Troubleshooting Guide 61 23.1 Chain saw 61 23.2 Adjusting Idle Speed 62 23.3 Clearing the Combustion Chamber 62 24 Specifications 63 24.1 EPA 63 24.2 STIHL MS 261 63 24.3 Chain Sprockets 63 24.4 Minimum Groove Depth of Guide Bars 64 24.5 Depth Gauge Setting 64 24.6 Symbols on the Chain Saw 64 24.7 Engineering Improvements 64 25 Combinations of Guide Bars and Saw Chains 65 25.1 STIHL MS 261 65 26 Replacement Parts and...
Instruction Manual
Page 6
... saw chain. 12 Nuts Tighten the chain sprocket cover to reduce the risk of fire. 6 Bumper Spike Helps hold the saw steady against the wood during cutting. 7 Saw Chain Toothed cutting tool consisting of cutters, tie straps and drive links. 8 Guide Bar Supports and guides the saw chain. 9 Chain Catcher Helps contain the saw chain and reduce the risk of operator contact in winter position. 3 Decompression Valve (not available on all models) Makes starting easier. 4 Front Hand Guard...
... saw chain. 12 Nuts Tighten the chain sprocket cover to reduce the risk of fire. 6 Bumper Spike Helps hold the saw steady against the wood during cutting. 7 Saw Chain Toothed cutting tool consisting of cutters, tie straps and drive links. 8 Guide Bar Supports and guides the saw chain. 9 Chain Catcher Helps contain the saw chain and reduce the risk of operator contact in winter position. 3 Decompression Valve (not available on all models) Makes starting easier. 4 Front Hand Guard...
Instruction Manual
Page 7
... use two hands to kick suddenly up and back, which may result in the event the chain breaks or comes off the bar. 25 Throttle Trigger Controls the speed of the engine. 26 Master Control Lever Lever for choke control, starting throttle, run and stop switch position. 27 Fuel Filler Cap Closes and seals the fuel tank. 28 Starter Grip The grip of the pull starter for the operator's left hand. 19 Spark Plug Ignites the fuel-air mix in the engine. 20 Spark Plug...
... use two hands to kick suddenly up and back, which may result in the event the chain breaks or comes off the bar. 25 Throttle Trigger Controls the speed of the engine. 26 Master Control Lever Lever for choke control, starting throttle, run and stop switch position. 27 Fuel Filler Cap Closes and seals the fuel tank. 28 Starter Grip The grip of the pull starter for the operator's left hand. 19 Spark Plug Ignites the fuel-air mix in the engine. 20 Spark Plug...
Instruction Manual
Page 11
... a Safe Location for several minutes before starting your chain saw is dropped or subjected to cool before removing the fuel cap. ■ The engine is no leaks. - Select bare ground for fuel. 5 IMPORTANT SAFETY INSTRUCTIONS ■ Any modification to get fuel on a number of factors, such as the fuel used . 5.5 Fueling Instructions Fuel WARNING ■ Gasoline and its vapors are extremely flammable. Use extreme caution when handling gasoline or fuel mix...
... a Safe Location for several minutes before starting your chain saw is dropped or subjected to cool before removing the fuel cap. ■ The engine is no leaks. - Select bare ground for fuel. 5 IMPORTANT SAFETY INSTRUCTIONS ■ Any modification to get fuel on a number of factors, such as the fuel used . 5.5 Fueling Instructions Fuel WARNING ■ Gasoline and its vapors are extremely flammable. Use extreme caution when handling gasoline or fuel mix...
Instruction Manual
Page 14
... can result in the correct starting position for repair. Discontinue use and let the engine cool completely before attempting to start the chain saw , move the Master Control Lever to the top. The exterior positioning mark (1) on the fuel tank housing. Turn the cap counter-clockwise with the exterior positioning marks (2). - To start position and pull the starter cord approximately 20 times to the proper starting throttle position and pull the starter cord approximately 10 times. - English ■ If the...
... can result in the correct starting position for repair. Discontinue use and let the engine cool completely before attempting to start the chain saw , move the Master Control Lever to the top. The exterior positioning mark (1) on the fuel tank housing. Turn the cap counter-clockwise with the exterior positioning marks (2). - To start position and pull the starter cord approximately 20 times to the proper starting throttle position and pull the starter cord approximately 10 times. - English ■ If the...
Instruction Manual
Page 15
... throttle trigger must not engage until the problem has been corrected. 0458-573-8621-D 13 If your chain saw that is running. - Read and follow the instructions on mounting the guide bar and chain, @ 10.2.1. ■ The chain, guide bar and sprocket must move freely and always spring back to secure the bar. Do not start the chain saw or any way. - Always check your saw with a loose chain. Use the chain saw repaired by...
... throttle trigger must not engage until the problem has been corrected. 0458-573-8621-D 13 If your chain saw that is running. - Read and follow the instructions on mounting the guide bar and chain, @ 10.2.1. ■ The chain, guide bar and sprocket must move freely and always spring back to secure the bar. Do not start the chain saw or any way. - Always check your saw with a loose chain. Use the chain saw repaired by...
Instruction Manual
Page 16
... a cut or kerf. - Start your hand. - Once the engine has started , the engine speed with the chain: - Always disengage chain brake before accelerating engine and before starting the engine. - Doing so could lead to important components (e.g., clutch, polymer housing components): - Engage the chain brake before starting cutting work. Start the chain saw when the guide bar is in a cut or the chain brake is very dangerous because you pull the starter grip, do not wrap the starter rope around your chain saw...
... a cut or kerf. - Start your hand. - Once the engine has started , the engine speed with the chain: - Always disengage chain brake before accelerating engine and before starting the engine. - Doing so could lead to important components (e.g., clutch, polymer housing components): - Engage the chain brake before starting cutting work. Start the chain saw when the guide bar is in a cut or the chain brake is very dangerous because you pull the starter grip, do not wrap the starter rope around your chain saw...
Instruction Manual
Page 18
... control and strike the operator or some other reproductive harm. Never modify the chain saw is not in use of a cut near power lines. ■ Your chain saw muffler or spark arresting screen. ■ If a rotating chain strikes a rock or other combustible materials and substances are known to stop position 0 before pulling the starter grip if the spark plug boot has been removed. - Never cut may pull you have any other time the chain saw...
... control and strike the operator or some other reproductive harm. Never modify the chain saw is not in use of a cut near power lines. ■ Your chain saw muffler or spark arresting screen. ■ If a rotating chain strikes a rock or other combustible materials and substances are known to stop position 0 before pulling the starter grip if the spark plug boot has been removed. - Never cut may pull you have any other time the chain saw...
Instruction Manual
Page 20
... the cylinder, spark plug) become hot during operation, or immediately if there is a change in the direction of personal injury in sets. the trunk of the saw are worn or damaged, stop and engage the chain brake before cutting. - Keep the area around the muffler clean. For directions on concrete, metal, bare ground or solid wood (e.g. A "sponginess" in this instruction manual. - Remove any combustible...
... the cylinder, spark plug) become hot during operation, or immediately if there is a change in the direction of personal injury in sets. the trunk of the saw are worn or damaged, stop and engage the chain brake before cutting. - Keep the area around the muffler clean. For directions on concrete, metal, bare ground or solid wood (e.g. A "sponginess" in this instruction manual. - Remove any combustible...
Instruction Manual
Page 21
... work against electric shock. 0458-573-8621-D 19 To reduce the risk of fire from the muffler and need no service or maintenance. The owner/operator of this chain saw with a complying spark arrester that may help you have any question about laws or regulations relating to cut near power lines. - Surprise contributes to use your gas/oil mix ratio is correct (i.e., not too rich), this chain saw around flammable...
... work against electric shock. 0458-573-8621-D 19 To reduce the risk of fire from the muffler and need no service or maintenance. The owner/operator of this chain saw with a complying spark arrester that may help you have any question about laws or regulations relating to cut near power lines. - Surprise contributes to use your gas/oil mix ratio is correct (i.e., not too rich), this chain saw around flammable...
Instruction Manual
Page 23
... maintained condition: - STIHL Quickstop Chain Brake English There are designed to reduce the risk of the chain saw standards may lose some of the cutting plane. - WARNING ■ To reduce the risk of Guide Bars and Saw Chains," @ 25; - Follow the maintenance and service instructions in a rotating motion around the front handle. Manual Activation: If a kickback occurs, the chain saw moves upwards toward the user in this manual. - 0000...
... maintained condition: - STIHL Quickstop Chain Brake English There are designed to reduce the risk of the chain saw standards may lose some of the cutting plane. - WARNING ■ To reduce the risk of Guide Bars and Saw Chains," @ 25; - Follow the maintenance and service instructions in a rotating motion around the front handle. Manual Activation: If a kickback occurs, the chain saw moves upwards toward the user in this manual. - 0000...
Instruction Manual
Page 35
... all nuts, bolts and screws after each time it is a change in a dry, secure place that are no user-authorized repairs for Operation Before starting : - Wear gloves when handling the saw and an increased risk of the brake system according to 0458-573-8621-D English your STIHL servicing dealer for proper function and condition, @ 16.2. ► Check the chain oil flow rate, @ 16.3. 33 Shut off the engine...
... all nuts, bolts and screws after each time it is a change in a dry, secure place that are no user-authorized repairs for Operation Before starting : - Wear gloves when handling the saw and an increased risk of the brake system according to 0458-573-8621-D English your STIHL servicing dealer for proper function and condition, @ 16.2. ► Check the chain oil flow rate, @ 16.3. 33 Shut off the engine...
Instruction Manual
Page 42
... the fuel tank during the summer will increase pressure in the fuel container. of 2-cycle engine oil - 2.5 US gals of any residual pressures. The idle speed and maximum speed of the engine change if you always use of empty mixing-oil containers only at the fuel pump, remove the container from static discharge and resulting fire and/or explosion, do not fill fuel containers that you switch to ensure proper mix of oil...
... the fuel tank during the summer will increase pressure in the fuel container. of 2-cycle engine oil - 2.5 US gals of any residual pressures. The idle speed and maximum speed of the engine change if you always use of empty mixing-oil containers only at the fuel pump, remove the container from static discharge and resulting fire and/or explosion, do not fill fuel containers that you switch to ensure proper mix of oil...
Instruction Manual
Page 48
... without first depressing the throttle trigger lockout, take the chain saw without bar and chain lubrication. Stopping the Engine ► Start the engine, @ 14.4. ► Move the Master Control Lever to position . Never touch 0000-GXX-1637-A0 16.3 Testing Chain Lubrication WARNING Never operate your saw inspected and repaired by an authorized STIHL servicing dealer. Always check chain lubrication and the oil level in the tank before use . 1 2 Throttle Trigger Lockout (1) and Throttle Trigger (2) WARNING To reduce...
... without first depressing the throttle trigger lockout, take the chain saw without bar and chain lubrication. Stopping the Engine ► Start the engine, @ 14.4. ► Move the Master Control Lever to position . Never touch 0000-GXX-1637-A0 16.3 Testing Chain Lubrication WARNING Never operate your saw inspected and repaired by an authorized STIHL servicing dealer. Always check chain lubrication and the oil level in the tank before use . 1 2 Throttle Trigger Lockout (1) and Throttle Trigger (2) WARNING To reduce...
Instruction Manual
Page 51
... chain, @ 12.2. ► Re-engage the chain brake. ► Slide a chain scabbard over the guide bar so that it down. If the saw is usually necessary to change the setting of personal injury from the factory with a standard setting. NOTICE Engine power may drop noticeably if the saw chain runs continuously or the engine stops, adjust the idle speed, @ 23.2. This setting provides an optimum fuel-air mixture under most operating conditions. ► Turn the high speed screw...
... chain, @ 12.2. ► Re-engage the chain brake. ► Slide a chain scabbard over the guide bar so that it down. If the saw is usually necessary to change the setting of personal injury from the factory with a standard setting. NOTICE Engine power may drop noticeably if the saw chain runs continuously or the engine stops, adjust the idle speed, @ 23.2. This setting provides an optimum fuel-air mixture under most operating conditions. ► Turn the high speed screw...
Instruction Manual
Page 58
...-573-8621-D STIHL recommends using the measuring tool on the file gauge (special accessory, not included). ► Replace the guide bar if the measured depth is damaged or shows signs of excessive wear. ► Having worn, missing or damaged safety labels replaced by an authorized STIHL servicing dealer. Proper maintenance of the chain saw includes the following activities: ► Installing a new spark plug after approximately 100 operating hours or...
...-573-8621-D STIHL recommends using the measuring tool on the file gauge (special accessory, not included). ► Replace the guide bar if the measured depth is damaged or shows signs of excessive wear. ► Having worn, missing or damaged safety labels replaced by an authorized STIHL servicing dealer. Proper maintenance of the chain saw includes the following activities: ► Installing a new spark plug after approximately 100 operating hours or...
Instruction Manual
Page 67
Since new bar/chain combinations may be developed after publication of this model chain saw . The listed chains are green-labeled reduced kickback STIHL guide bars. The listed guide bars are green-labeled low kickback STIHL chains. Number of teeth Drive link of ANSI/OPEI B175.1 when used on this model chain saw with the matching chain sprocket listed above. 25 Combinations of Guide Bars and Saw Chains 25 Combinations of Guide Bars and Saw Chains 25.1 STIHL MS 261 Pitch Drive link gauge/Groove width Length Guide Bar .325...
Since new bar/chain combinations may be developed after publication of this model chain saw . The listed chains are green-labeled reduced kickback STIHL guide bars. The listed guide bars are green-labeled low kickback STIHL chains. Number of teeth Drive link of ANSI/OPEI B175.1 when used on this model chain saw with the matching chain sprocket listed above. 25 Combinations of Guide Bars and Saw Chains 25 Combinations of Guide Bars and Saw Chains 25.1 STIHL MS 261 Pitch Drive link gauge/Groove width Length Guide Bar .325...
Instruction Manual
Page 69
... all receipts covering maintenance on the date the utility equipment engine is purchased by STIHL Incorporated at any authorized STIHL servicing dealer or warranty station. Any such work will be used for any warranty maintenance or repairs on your small off-road equipment engine or a part has failed due to STIHL Inc, 536 Viking Drive, P.O. You are responsible for the performance of the required maintenance listed in...
... all receipts covering maintenance on the date the utility equipment engine is purchased by STIHL Incorporated at any authorized STIHL servicing dealer or warranty station. Any such work will be used for any warranty maintenance or repairs on your small off-road equipment engine or a part has failed due to STIHL Inc, 536 Viking Drive, P.O. You are responsible for the performance of the required maintenance listed in...
Instruction Manual
Page 70
...,058, #3,400,477; Cylinder - Fuel Line - Magneto or Electronic Ignition System (Ignition Module or Electronic Control Unit) - repair or replacement required because of misuse, neglect or lack of parts and other engine components caused by STIHL Incorporated, - Carburetor (if applicable) - Fuel Pump - Intake Manifold - Spark Plug - Injection Pump (if applicable) - Throttle Housing (if applicable) Where to Make a Claim for Warranty Service Bring the product to STIHL Incorporated specifications that adversely affect performance...
...,058, #3,400,477; Cylinder - Fuel Line - Magneto or Electronic Ignition System (Ignition Module or Electronic Control Unit) - repair or replacement required because of misuse, neglect or lack of parts and other engine components caused by STIHL Incorporated, - Carburetor (if applicable) - Fuel Pump - Intake Manifold - Spark Plug - Injection Pump (if applicable) - Throttle Housing (if applicable) Where to Make a Claim for Warranty Service Bring the product to STIHL Incorporated specifications that adversely affect performance...