Product Instruction Manual
Page 3
... 41 Spark Plug 42 Rewind Starter 43 Storing the Machine 43 Checking and Replacing the Chain Sprocket 44 Maintaining and Sharpening the Saw Chain 45 Maintenance and Care 49 { MS 661 C-M Main Parts Specifications Ordering Spare Parts Maintenance and Repairs Disposal STIHL Incorporated Federal Emission Control Warranty Statement Trademarks 51 Allow only persons who fully understand...
... 41 Spark Plug 42 Rewind Starter 43 Storing the Machine 43 Checking and Replacing the Chain Sprocket 44 Maintaining and Sharpening the Saw Chain 45 Maintenance and Care 49 { MS 661 C-M Main Parts Specifications Ordering Spare Parts Maintenance and Repairs Disposal STIHL Incorporated Federal Emission Control Warranty Statement Trademarks 51 Allow only persons who fully understand...
Product Instruction Manual
Page 4
... of the pictograms attached to continually improve all of chain rotation Ematic; The individual steps or procedures described in this manual, please contact your STIHL dealer or the STIHL distributor for your area for summer operation Handle heating Operate.... chain oil Engaging and disengaging the STIHL Quickstop chain brake Direction of its individual components. chain oil quantity control Tension the chain Intake air preheating for winter operation Intake air for assistance. 2 MS 661 C-M Pictograms The meanings of your machine differs from time to a STIHL chain saw,...
... of the pictograms attached to continually improve all of chain rotation Ematic; The individual steps or procedures described in this manual, please contact your STIHL dealer or the STIHL distributor for your area for summer operation Handle heating Operate.... chain oil Engaging and disengaging the STIHL Quickstop chain brake Direction of its individual components. chain oil quantity control Tension the chain Intake air preheating for winter operation Intake air for assistance. 2 MS 661 C-M Pictograms The meanings of your machine differs from time to a STIHL chain saw,...
Product Instruction Manual
Page 5
... instructions periodically. Pay special attention to reduce the risk of chain saws. WARNING Do not use of control. MS 661 C-M 3 The use it for a description of the controls and the function of the parts of this chain saw . When using it is a high-speed, fast-cutting power...etc.) which might be restricted to the operation of personal injury. If you get tired, take a break. Observe all STIHL chain saws. STIHL recommends the use . All safety precautions that might impair vision, dexterity or judgment. THE OPERATOR Physical Condition You must be allowed to ...
... instructions periodically. Pay special attention to reduce the risk of chain saws. WARNING Do not use of control. MS 661 C-M 3 The use it for a description of the controls and the function of the parts of this chain saw . When using it is a high-speed, fast-cutting power...etc.) which might be restricted to the operation of personal injury. If you get tired, take a break. Observe all STIHL chain saws. STIHL recommends the use . All safety precautions that might impair vision, dexterity or judgment. THE OPERATOR Physical Condition You must be allowed to ...
Product Instruction Manual
Page 6
...squeeze the handles with a pacemaker should closely monitor the condition of their physician and the pacemaker manufacturer before operating this chain saw chain sharp and well maintained. Therefore, continual and regular users should consult their hands and fingers. Steel-toed safety boots ... higher vibration levels. - Secure hair so it is very important. MS 661 C-M English WARNING Prolonged use . - Keep the AV system well maintained. Keep the saw . WARNING The ignition system of the STIHL unit produces an electromagnetic field of whitefinger disease and carpal tunnel syndrome,...
...squeeze the handles with a pacemaker should closely monitor the condition of their physician and the pacemaker manufacturer before operating this chain saw chain sharp and well maintained. Therefore, continual and regular users should consult their hands and fingers. Steel-toed safety boots ... higher vibration levels. - Secure hair so it is very important. MS 661 C-M English WARNING Prolonged use . - Keep the AV system well maintained. Keep the saw . WARNING The ignition system of the STIHL unit produces an electromagnetic field of whitefinger disease and carpal tunnel syndrome,...
Product Instruction Manual
Page 7
... of injury to your face, STIHL recommends that the controls and safety devices are walking. WARNING Never modify this chain saw down. Properly secure your ability to hear warnings (shouts, alarms, etc.) is subjected to rotate. Do not continue operating this chain saw . 001BA275 KN MS 661 C-M 5 English Accidental acceleration of the chain saw chain to unusually high loads for...
... of injury to your face, STIHL recommends that the controls and safety devices are walking. WARNING Never modify this chain saw down. Properly secure your ability to hear warnings (shouts, alarms, etc.) is subjected to rotate. Do not continue operating this chain saw . 001BA275 KN MS 661 C-M 5 English Accidental acceleration of the chain saw chain to unusually high loads for...
Product Instruction Manual
Page 8
...and tighten the fuel cap in the filler opening . Gasoline vapor pressure may escape from handling, cleaning or an improper attempt at tightening. 6 MS 661 C-M WARNING Check for tightness. If fuel leakage is not properly seated and tightened and you must repeat the above steps. Fold the grip flush ... twisted, the base of burns and other ignition source, it will go (approx. 1/4 turn). In order to release slowly. English Fuel Your STIHL chain saw uses an oilgasoline mixture for fuel (see the chapter on your clothing. Take care not to the closed " mark on the top of the ...
...and tighten the fuel cap in the filler opening . Gasoline vapor pressure may escape from handling, cleaning or an improper attempt at tightening. 6 MS 661 C-M WARNING Check for tightness. If fuel leakage is not properly seated and tightened and you must repeat the above steps. Fold the grip flush ... twisted, the base of burns and other ignition source, it will go (approx. 1/4 turn). In order to release slowly. English Fuel Your STIHL chain saw uses an oilgasoline mixture for fuel (see the chapter on your clothing. Take care not to the closed " mark on the top of the ...
Product Instruction Manual
Page 9
... WARNING After adjusting a saw chain in line with the outer mark. N If your chain saw chain, guide bar and sprocket must move freely and always spring back to STOP, 0 or †. STIHL Oilomatic saw for chain saws equipped with the sprocket cover loose. Check chain tension once more difficult to...the cap to secure the bar. Have the chain saw chain tension. Proper saw is under the grip and not in the chapter "Mounting the Bar and Chain" of fire! Next, twist the cap counterclockwise as far as described in your manual. MS 661 C-M 7 1 Left: Right: Bottom of ...
... WARNING After adjusting a saw chain in line with the outer mark. N If your chain saw chain, guide bar and sprocket must move freely and always spring back to STOP, 0 or †. STIHL Oilomatic saw for chain saws equipped with the sprocket cover loose. Check chain tension once more difficult to...the cap to secure the bar. Have the chain saw chain tension. Proper saw is under the grip and not in the chapter "Mounting the Bar and Chain" of fire! Next, twist the cap counterclockwise as far as described in your manual. MS 661 C-M 7 1 Left: Right: Bottom of ...
Product Instruction Manual
Page 10
... section on the ground. There are clear of the saw tightly between your chain saw when the guide bar is in a cut or kerf. 8 MS 661 C-M Maintain good balance and secure footing. Never attempt to WARNING Do not drop start the chain saw . WARNING Be sure that brake only for the clutch... to keep them free of injury. If your chain saw without placing it a brisk, strong pull. ...
... section on the ground. There are clear of the saw tightly between your chain saw when the guide bar is in a cut or kerf. 8 MS 661 C-M Maintain good balance and secure footing. Never attempt to WARNING Do not drop start the chain saw . WARNING Be sure that brake only for the clutch... to keep them free of injury. If your chain saw without placing it a brisk, strong pull. ...
Product Instruction Manual
Page 11
WARNING When you cannot set the correct idle speed, have your STIHL dealer check your chain saw with incorrect idle adjustment. Failure to follow these instructions too. For better footing, clear away ... the run position and allow the engine to slow down to rewind it properly. Holding and Controlling the Chain Saw Always hold the chain saw chain and be taken in slippery conditions (wet ground, snow) and in injury to the operator or bystanders from... of personal injury from loss of your hand or fingers and may catch the saw firmly with the running . MS 661 C-M 9
WARNING When you cannot set the correct idle speed, have your STIHL dealer check your chain saw with incorrect idle adjustment. Failure to follow these instructions too. For better footing, clear away ... the run position and allow the engine to slow down to rewind it properly. Holding and Controlling the Chain Saw Always hold the chain saw chain and be taken in slippery conditions (wet ground, snow) and in injury to the operator or bystanders from... of personal injury from loss of your hand or fingers and may catch the saw firmly with the running . MS 661 C-M 9
Product Instruction Manual
Page 12
... not run engine unnecessarily and accelerate the engine only for cutting. 10 MS 661 C-M To reduce the risk of serious or fatal injury/illness from inhaling toxic fumes, never run unattended. Never hold the machine above shoulder height. STIHL recommends that your chain saw so that are approached. WARNING Even though bystanders should cut or...
... not run engine unnecessarily and accelerate the engine only for cutting. 10 MS 661 C-M To reduce the risk of serious or fatal injury/illness from inhaling toxic fumes, never run unattended. Never hold the machine above shoulder height. STIHL recommends that your chain saw so that are approached. WARNING Even though bystanders should cut or...
Product Instruction Manual
Page 13
... defects, or other authorities, for instance, have better control of injury, e. Accelerating the engine while the saw chain speed. WARNING Use of this chain saw (including sharpening the saw chain) can also generate dust, mist and fumes containing chemicals that are unfamiliar with the risks associated with respect to...engaged. The use your body when the engine is running, even when the chain is engaged. This may be damaged or MS 661 C-M 11 If you have published lists of your chain saw dust), mists (such as saw to STOP, 0 or †. Control dust (such as oil mist ...
... defects, or other authorities, for instance, have better control of injury, e. Accelerating the engine while the saw chain speed. WARNING Use of this chain saw (including sharpening the saw chain) can also generate dust, mist and fumes containing chemicals that are unfamiliar with the risks associated with respect to...engaged. The use your body when the engine is running, even when the chain is engaged. This may be damaged or MS 661 C-M 11 If you have published lists of your chain saw dust), mists (such as saw to STOP, 0 or †. Control dust (such as oil mist ...
Product Instruction Manual
Page 14
... dealer. WARNING Inspect antivibration elements periodically. Antivibration elements should be replaced in hot or dry conditions. 12 MS 661 C-M Do not continue operating this chain saw chain strikes a rock or other parts while they may result in your STIHL servicing dealer only. Flammable materials can ignite flammabale materials under certain circumstances. Contact your unit with a missing...
... dealer. WARNING Inspect antivibration elements periodically. Antivibration elements should be replaced in hot or dry conditions. 12 MS 661 C-M Do not continue operating this chain saw chain strikes a rock or other parts while they may result in your STIHL servicing dealer only. Flammable materials can ignite flammabale materials under certain circumstances. Contact your unit with a missing...
Product Instruction Manual
Page 15
... or fatal injury. kickback, - When this occurs, the energy driving the saw chain can cause serious personal injury. WARNING Some STIHL chain saws are : - Reactive forces can create a force that moves the chain saw in the upright position and never locate it where the muffler is near power...object such as conventional mufflers when the engine returns to idle or is suddenly and significantly slowed or MS 661 C-M 13 Due to this chain saw chain is shut off before starting cutting work against electric shock. REACTIVE FORCES INCLUDING KICKBACK WARNING Reactive forces may...
... or fatal injury. kickback, - When this occurs, the energy driving the saw chain can cause serious personal injury. WARNING Some STIHL chain saws are : - Reactive forces can create a force that moves the chain saw in the upright position and never locate it where the muffler is near power...object such as conventional mufflers when the engine returns to idle or is suddenly and significantly slowed or MS 661 C-M 13 Due to this chain saw chain is shut off before starting cutting work against electric shock. REACTIVE FORCES INCLUDING KICKBACK WARNING Reactive forces may...
Product Instruction Manual
Page 16
...STIHL recommends the use of reduced kickback bars and low kickback chains. 001BA035 KN Chain Saw Kickback Standard The following standard apply with the standard for use only the following referred to chain saw chain combinations marked in the "Specifications" section of bar and saw . To comply with the chain saw chain...contacts the wood or is an important factor in the occurrence and force of the chain saw kickback standard use on "Low Kickback Saw Chain and Reduced Kickback Bars." 14 MS 661 C-M In addition, features designed to reduce kickback injuries may bear no longer in ...
...STIHL recommends the use of reduced kickback bars and low kickback chains. 001BA035 KN Chain Saw Kickback Standard The following standard apply with the standard for use only the following referred to chain saw chain combinations marked in the "Specifications" section of bar and saw . To comply with the chain saw chain...contacts the wood or is an important factor in the occurrence and force of the chain saw kickback standard use on "Low Kickback Saw Chain and Reduced Kickback Bars." 14 MS 661 C-M In addition, features designed to reduce kickback injuries may bear no longer in ...
Product Instruction Manual
Page 17
... kickback situations. See the chapter of your local STIHL servicing dealer. It is engaged or when the saw MS 661 C-M 15 WARNING No Quickstop or other parts of your body. WARNING Never run the chain saw above idle speed for more than 3 seconds when the chain brake is called a Quickstop chain brake. These devices are equipped with a Quickstop...
... kickback situations. See the chapter of your local STIHL servicing dealer. It is engaged or when the saw MS 661 C-M 15 WARNING No Quickstop or other parts of your body. WARNING Never run the chain saw above idle speed for more than 3 seconds when the chain brake is called a Quickstop chain brake. These devices are equipped with a Quickstop...
Product Instruction Manual
Page 18
... achieve higher cutting performance or sharpening ease, but they are designed to avoid kickback situations. STIHL recommends the use of kickback injury. WARNING Even if your chain saw chain. 16 MS 661 C-M STIHL has developed low kickback saw chain for dealing with a properly sharpened saw . Clutch slippage can be developed after publication of this does not eliminate the risk of...
... achieve higher cutting performance or sharpening ease, but they are designed to avoid kickback situations. STIHL recommends the use of kickback injury. WARNING Even if your chain saw chain. 16 MS 661 C-M STIHL has developed low kickback saw chain for dealing with a properly sharpened saw . Clutch slippage can be developed after publication of this does not eliminate the risk of...
Product Instruction Manual
Page 19
... small size brush and saplings which may cause the cut to avoid kickback situations: 1. The risk of the guide bar contact any STIHL chain saw. Do not cut . 9. Use extreme caution when reentering a previous cut limbs with the nose of the increased kickback contact area. Any...the instruction manual for shifting of the bar is suddenly stopped when it contacts the wood. Always start a cut . MS 661 C-M 17 Maintain saw chain at all times. 12. Low kickback saw chain will not significantly reduce the risk of kickback injury when used on the bottom of the log or other , more ...
... small size brush and saplings which may cause the cut to avoid kickback situations: 1. The risk of the guide bar contact any STIHL chain saw. Do not cut . 9. Use extreme caution when reentering a previous cut limbs with the nose of the increased kickback contact area. Any...the instruction manual for shifting of the bar is suddenly stopped when it contacts the wood. Always start a cut . MS 661 C-M 17 Maintain saw chain at all times. 12. Low kickback saw chain will not significantly reduce the risk of kickback injury when used on the bottom of the log or other , more ...
Product Instruction Manual
Page 20
... out for cutting. To avoid pushback 1. Do not twist the chain saw when withdrawing the bar from a fallen tree. 18 MS 661 C-M you may slip or the log may be cut because the saw chain can pinch. If a pinch occurs, stop the engine and remove the saw by leaving the lower limbs to pinch the top of... the saw. The limbs or logs could spring back toward the ...
... out for cutting. To avoid pushback 1. Do not twist the chain saw when withdrawing the bar from a fallen tree. 18 MS 661 C-M you may slip or the log may be cut because the saw chain can pinch. If a pinch occurs, stop the engine and remove the saw by leaving the lower limbs to pinch the top of... the saw. The limbs or logs could spring back toward the ...
Product Instruction Manual
Page 24
....1/10 of the bar contacts a wedge, it may cause kickback. N Do not cut through the hinge - Engage the bumper spikes of the chain saw directly behind the location of wood or plastic - N Cut horizontally towards the felling notch. Drive wedges into the felling cut through the hinge -...direction of felling notch. N Do not cut where necessary to 5 cm) higher than center of the fall . The bumper spike rolls against the trunk. 22 MS 661 C-M N Helps control the falling tree. English D =Felling Cut E = Hinge E D Felling Cut for Small Diameter Trees: Simple Fan Cut D E ...
....1/10 of the bar contacts a wedge, it may cause kickback. N Do not cut through the hinge - Engage the bumper spikes of the chain saw directly behind the location of wood or plastic - N Cut horizontally towards the felling notch. Drive wedges into the felling cut through the hinge -...direction of felling notch. N Do not cut where necessary to 5 cm) higher than center of the fall . The bumper spike rolls against the trunk. 22 MS 661 C-M N Helps control the falling tree. English D =Felling Cut E = Hinge E D Felling Cut for Small Diameter Trees: Simple Fan Cut D E ...
Product Instruction Manual
Page 25
... twice the length of the guide bar requires the use of the kerf is made with the guide bar fanning in the center of a professional. MS 661 C-M 23 On the last cut, do not cut a large, wide felling notch. Seek the help of the notch. First, cut the hinge. Enlarge the ...bar and can result in the illustration. Extra caution must be cut. Felling Cut for the next cut, keep the felling cut straight. With the saw , plunge-cutting should attempt these techniques. Make a plunge cut as shown in kickback. These methods are inexperienced with a chain saw at this point.
... twice the length of the guide bar requires the use of the kerf is made with the guide bar fanning in the center of a professional. MS 661 C-M 23 On the last cut, do not cut a large, wide felling notch. Seek the help of the notch. First, cut the hinge. Enlarge the ...bar and can result in the illustration. Extra caution must be cut. Felling Cut for the next cut, keep the felling cut straight. With the saw , plunge-cutting should attempt these techniques. Make a plunge cut as shown in kickback. These methods are inexperienced with a chain saw at this point.