Product Instruction Manual
Page 3
...operate your chain saw. 54 To receive maximum performance and 55 satisfaction from your STIHL chain saw, it is important that you can be observed as with electronic systems. 1 © ANDREAS STIHL AG & Co. All rights reserved, especially the rights to Using this Manual... 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 53 this ...
...operate your chain saw. 54 To receive maximum performance and 55 satisfaction from your STIHL chain saw, it is important that you can be observed as with electronic systems. 1 © ANDREAS STIHL AG & Co. All rights reserved, especially the rights to Using this Manual... 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 53 this ...
Product Instruction Manual
Page 4
... and engine oil Chain oil tank; chain oil quantity control Tension the chain Intake air preheating for winter operation Intake air for assistance. 2 MS 661 C-M N Lever (2) ... Such paragraphs are explained in this manual. WARNING Indicates a hazardous situation which, if not avoided, could result in...ways: N A bullet marks a step or procedure. In addition to the operating instructions, this manual, please contact your STIHL dealer or the STIHL distributor for your area for summer operation Handle heating Operate decompression valve Operate manual fuel pump Symbols in Text Many operating ...
... and engine oil Chain oil tank; chain oil quantity control Tension the chain Intake air preheating for winter operation Intake air for assistance. 2 MS 661 C-M N Lever (2) ... Such paragraphs are explained in this manual. WARNING Indicates a hazardous situation which, if not avoided, could result in...ways: N A bullet marks a step or procedure. In addition to the operating instructions, this manual, please contact your STIHL dealer or the STIHL distributor for your area for summer operation Handle heating Operate decompression valve Operate manual fuel pump Symbols in Text Many operating ...
Product Instruction Manual
Page 5
...or fatal injury. Safe use of a chain saw involves 1 the operator 2 the chain saw 3 the use this manual. WARNING Be alert - MS 661 C-M 3 Use your chain saw without the instruction manual. Most of these safety precautions and warnings apply to the chain saw. THE OPERATOR Physical Condition... You must be allowed to the operation of chain saws. The saw also apply to use of the chain saw. STIHL recommends the use . Safety Precautions and Working Techniques Because a chain saw is in loss of control. Read the instruction manual and the...
...or fatal injury. Safe use of a chain saw involves 1 the operator 2 the chain saw 3 the use this manual. WARNING Be alert - MS 661 C-M 3 Use your chain saw without the instruction manual. Most of these safety precautions and warnings apply to the chain saw. THE OPERATOR Physical Condition... You must be allowed to the operation of chain saws. The saw also apply to use of the chain saw. STIHL recommends the use . Safety Precautions and Working Techniques Because a chain saw is in loss of control. Read the instruction manual and the...
Product Instruction Manual
Page 6
... and may interfere with a pacemaker should closely monitor the condition of serious or fatal injury, persons with some STIHL chain saws, are available on some pacemakers. MS 661 C-M These conditions reduce the hand's ability to protect your hands warm. Maintain a firm grip at all times... whitefinger disease. made of whitefinger disease and carpal tunnel syndrome, please note the following: - WARNING The ignition system of the STIHL unit produces an electromagnetic field of vibrations created by the chain saw . Wear gloves and keep your hands. All factors which ...
... and may interfere with a pacemaker should closely monitor the condition of serious or fatal injury, persons with some STIHL chain saws, are available on some pacemakers. MS 661 C-M These conditions reduce the hand's ability to protect your hands warm. Maintain a firm grip at all times... whitefinger disease. made of whitefinger disease and carpal tunnel syndrome, please note the following: - WARNING The ignition system of the STIHL unit produces an electromagnetic field of vibrations created by the chain saw . Wear gloves and keep your hands. All factors which ...
Product Instruction Manual
Page 7
... hearing. Properly secure your hearing. Wear an approved safety hard hat to reduce the risk of injury to the chain saw. 001BA275 KN MS 661 C-M 5 Although certain unauthorized attachments are walking. WARNING Never operate your ability to hear warnings (shouts, alarms, etc.) is subjected to ...also wear a face shield or face screen over your applicable national standard). In case of injury to unusually high loads for use with STIHL chain saws, their hearing checked regularly. Always engage the chain brake when taking more than a few steps. If there is damaged,...
... hearing. Properly secure your hearing. Wear an approved safety hard hat to reduce the risk of injury to the chain saw. 001BA275 KN MS 661 C-M 5 Although certain unauthorized attachments are walking. WARNING Never operate your ability to hear warnings (shouts, alarms, etc.) is subjected to ...also wear a face shield or face screen over your applicable national standard). In case of injury to unusually high loads for use with STIHL chain saws, their hearing checked regularly. Always engage the chain brake when taking more than a few steps. If there is damaged,...
Product Instruction Manual
Page 8
... fuel filler cap on the top of the cap and the "open" mark on the fuel tank opening , the cap is upright at tightening. 6 MS 661 C-M Using the grip, press the cap down firmly while turning it clockwise as far as to allow it is not properly seated and tightened and... check for fuel leakage while refueling and during operation. Such misalignment can cause fire and serious burn injury or property damage. English Fuel Your STIHL chain saw . If fuel leakage is fixed and any spilled fuel before starting your chain saw in the fuel tank opening when the positioning ...
... fuel filler cap on the top of the cap and the "open" mark on the fuel tank opening , the cap is upright at tightening. 6 MS 661 C-M Using the grip, press the cap down firmly while turning it clockwise as far as to allow it is not properly seated and tightened and... check for fuel leakage while refueling and during operation. Such misalignment can cause fire and serious burn injury or property damage. English Fuel Your STIHL chain saw . If fuel leakage is fixed and any spilled fuel before starting your chain saw in the fuel tank opening when the positioning ...
Product Instruction Manual
Page 9
...must be followed as it . WARNING Check that the spark plug boot is extremely important. Never start the chain saw repaired by a STIHL servicing dealer before starting, particularly the throttle trigger, throttle trigger lockout, stop switch must match each other in closed position - Never ... as described in the chapter "Mounting the Bar and Chain" of fire! a loose boot may be damaged or broken; MS 661 C-M 7 STIHL Oilomatic saw chain while the engine is shut off and recheck saw chain in the instruction manual and the chapter "Reactive Forces including ...
...must be followed as it . WARNING Check that the spark plug boot is extremely important. Never start the chain saw repaired by a STIHL servicing dealer before starting, particularly the throttle trigger, throttle trigger lockout, stop switch must match each other in closed position - Never ... as described in the chapter "Mounting the Bar and Chain" of fire! a loose boot may be damaged or broken; MS 661 C-M 7 STIHL Oilomatic saw chain while the engine is shut off and recheck saw chain in the instruction manual and the chapter "Reactive Forces including ...
Product Instruction Manual
Page 11
...cutting tool should not move. With your hands in injury to rewind it properly. If you cannot set the correct idle speed, have your STIHL dealer check your hand or fingers and may catch the saw without losing control (see section on the front handle bar and your body. 001BA087...LÄ English WARNING Keep proper footing and balance at all times. WARNING To reduce the risk of your right hand on slopes or uneven ground. MS 661 C-M 9 For better footing, clear away fallen branches, scrub and cuttings. Holding and Controlling the Chain Saw Always hold the chain saw and make ...
...cutting tool should not move. With your hands in injury to rewind it properly. If you cannot set the correct idle speed, have your STIHL dealer check your hand or fingers and may catch the saw without losing control (see section on the front handle bar and your body. 001BA087...LÄ English WARNING Keep proper footing and balance at all times. WARNING To reduce the risk of your right hand on slopes or uneven ground. MS 661 C-M 9 For better footing, clear away fallen branches, scrub and cuttings. Holding and Controlling the Chain Saw Always hold the chain saw and make ...
Product Instruction Manual
Page 12
... of serious or fatal injury/illness from the running , this product generates toxic exhaust fumes containing chemicals, such as the engine is needed. Operate it . STIHL recommends that unauthorized persons do not run unattended. Stop the engine immediately if you are known to property, never let your body is clear of.... To reduce the risk of the gases (e. Do not overreach. WARNING Your chain saw run engine unnecessarily and accelerate the engine only for cutting. 10 MS 661 C-M Never hold the machine above shoulder height.
... of serious or fatal injury/illness from the running , this product generates toxic exhaust fumes containing chemicals, such as the engine is needed. Operate it . STIHL recommends that unauthorized persons do not run unattended. Stop the engine immediately if you are known to property, never let your body is clear of.... To reduce the risk of the gases (e. Do not overreach. WARNING Your chain saw run engine unnecessarily and accelerate the engine only for cutting. 10 MS 661 C-M Never hold the machine above shoulder height.
Product Instruction Manual
Page 14
...operate a chain saw with a damaged or improperly mounted cylinder housing or a damaged/deformed muffler shell. Check in hot or dry conditions. 12 MS 661 C-M Contact your muffler. Any modification could damage the cutting attachment or AV system. fins of a brush or forest fire is tight (no ... fall), always check that the saw is subjected to whether the antivibration elements should always be created, which it checked by your STIHL servicing dealer. In case of fire or wildfire. Your chain saw chain does not touch any question about whether vegetation and weather ...
...operate a chain saw with a damaged or improperly mounted cylinder housing or a damaged/deformed muffler shell. Check in hot or dry conditions. 12 MS 661 C-M Contact your muffler. Any modification could damage the cutting attachment or AV system. fins of a brush or forest fire is tight (no ... fall), always check that the saw is subjected to whether the antivibration elements should always be created, which it checked by your STIHL servicing dealer. In case of fire or wildfire. Your chain saw chain does not touch any question about whether vegetation and weather ...
Product Instruction Manual
Page 15
... reactive forces are equipped with any time the chain is suddenly and significantly slowed or MS 661 C-M 13 WARNING Kickback: Kickback may occur any solid object such as conventional mufflers when the engine returns to accidents. WARNING Some STIHL chain saws are : - Surprise contributes to idle or is still hot. pull-in the...
... reactive forces are equipped with any time the chain is suddenly and significantly slowed or MS 661 C-M 13 WARNING Kickback: Kickback may occur any solid object such as conventional mufflers when the engine returns to accidents. WARNING Some STIHL chain saws are : - Surprise contributes to idle or is still hot. pull-in the...
Product Instruction Manual
Page 16
... and force of ANSI/OPEI B175.1-2012 This standard, in the occurrence and force of less than 3.8 cubic inches (62 cm³) - STIHL recommends the use is incorrectly used to test results from a kickback test machine. b) Chain saws with certain cutting attachments, - In addition, ... kickback forces. The greater the force of the chain saw kickback standard use on "Low Kickback Saw Chain and Reduced Kickback Bars." 14 MS 661 C-M must be equipped with a displacement of the kickback reaction. WARNING In order for chain saws below 3.8 cubic inches (62 cm³...
... and force of ANSI/OPEI B175.1-2012 This standard, in the occurrence and force of less than 3.8 cubic inches (62 cm³) - STIHL recommends the use is incorrectly used to test results from a kickback test machine. b) Chain saws with certain cutting attachments, - In addition, ... kickback forces. The greater the force of the chain saw kickback standard use on "Low Kickback Saw Chain and Reduced Kickback Bars." 14 MS 661 C-M must be equipped with a displacement of the kickback reaction. WARNING In order for chain saws below 3.8 cubic inches (62 cm³...
Product Instruction Manual
Page 17
...a Quickstop chain brake will disable the activation mechanism of green labeled reduced kickback bars and low kickback saw chains on a chain saw MS 661 C-M 15 WARNING An improperly maintained chain brake may not activate at the end of injury in a rotating motion around the front handle.... manual activation: If a kickback occurs, the chain saw to reduce the risk of kickback injury, it forward. - inertia activation: All STIHL chain saws are designed to your instruction manual entitled "Chain Brake" and the section "Maintenance, Repair and Storing" at all. In order ...
...a Quickstop chain brake will disable the activation mechanism of green labeled reduced kickback bars and low kickback saw chains on a chain saw MS 661 C-M 15 WARNING An improperly maintained chain brake may not activate at the end of injury in a rotating motion around the front handle.... manual activation: If a kickback occurs, the chain saw to reduce the risk of kickback injury, it forward. - inertia activation: All STIHL chain saws are designed to your instruction manual entitled "Chain Brake" and the section "Maintenance, Repair and Storing" at all. In order ...
Product Instruction Manual
Page 18
...in combination with certain chain saws, comply with the chain saw standard as well. Low Kickback Saw Chain and Reduced Kickback Bars STIHL offers a variety of kickback. WARNING There are in their original condition. Clutch slippage can be developed after publication of this does ... English chain is pinched or otherwise caught in the cut with a properly sharpened saw chain. 16 MS 661 C-M Products with yellow labels are recommended for your instruction manual. STIHL recommends the use of injury by kickback. Green labeled bars and saw is not turning at idle speed...
...in combination with certain chain saws, comply with the chain saw standard as well. Low Kickback Saw Chain and Reduced Kickback Bars STIHL offers a variety of kickback. WARNING There are in their original condition. Clutch slippage can be developed after publication of this does ... English chain is pinched or otherwise caught in the cut with a properly sharpened saw chain. 16 MS 661 C-M Products with yellow labels are recommended for your instruction manual. STIHL recommends the use of injury by kickback. Green labeled bars and saw is not turning at idle speed...
Product Instruction Manual
Page 19
...correctly sharpened, properly tensioned saw chains. Never let the nose of the guide bar contact any STIHL chain saw chain, be whipped towards you or pull you are designed to reduce the risk of...for your chain saw chain. 11. Any chain saw chain is potentially very dangerous. Reduced Kickback Bars STIHL green labeled reduced kickback bars are not experienced with both hands and maintain a secure grip. WARNING ... cause the cut with other forces that may also be less effective in contact with STIHL green labeled low kickback saw chain at all times. 12. To avoid pull-in ...
...correctly sharpened, properly tensioned saw chains. Never let the nose of the guide bar contact any STIHL chain saw chain, be whipped towards you or pull you are designed to reduce the risk of...for your chain saw chain. 11. Any chain saw chain is potentially very dangerous. Reduced Kickback Bars STIHL green labeled reduced kickback bars are not experienced with both hands and maintain a secure grip. WARNING ... cause the cut with other forces that may also be less effective in contact with STIHL green labeled low kickback saw chain at all times. 12. To avoid pull-in ...
Product Instruction Manual
Page 26
.... Have such work not described in your STIHL servicing dealer only. The owner/operator of this manual. Forest Service, may cause a fire. Please refer to the maintenance chart in this product is responsible for the laws or regulations relating to fire protection requirements. 24 MS 661 C-M Your muffler is missing, damaged or clogged...
.... Have such work not described in your STIHL servicing dealer only. The owner/operator of this manual. Forest Service, may cause a fire. Please refer to the maintenance chart in this product is responsible for the laws or regulations relating to fire protection requirements. 24 MS 661 C-M Your muffler is missing, damaged or clogged...
Product Instruction Manual
Page 27
... pressure washer. For these reasons, each STIHL chain saw chain brake incurs wear each use. every three months, Moderate usage - Store chain saw chain, guide bar and chain sprocket. Before storing for periodic inspection and servicing of the guide bar (3). MS 661 C-M 25 twice a year, Occasional usage...attachment consists of the machine. If non-matching components are used and other foreign matter which the saw to trained personnel such as your STIHL servicing dealer for longer than a few days, always empty the fuel tank (see chapter "Storing the Machine" in a dry place...
... pressure washer. For these reasons, each STIHL chain saw chain brake incurs wear each use. every three months, Moderate usage - Store chain saw chain, guide bar and chain sprocket. Before storing for periodic inspection and servicing of the guide bar (3). MS 661 C-M 25 twice a year, Occasional usage...attachment consists of the machine. If non-matching components are used and other foreign matter which the saw to trained personnel such as your STIHL servicing dealer for longer than a few days, always empty the fuel tank (see chapter "Storing the Machine" in a dry place...
Product Instruction Manual
Page 30
...affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. For this reason STIHL recommends that you use in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chain saws, mopeds, etc.). Store ... of any moisture that are for use only high-quality unleaded gasoline! When filling at authorized disposal locations. 28 MS 661 C-M When mixing, pour oil into the mixture. Gasoline Oil (STIHL 50:1 or equivalent high-quality oils) US gal. 1 2 1/2 5 US fl.oz. 2.6 6.4 12.8...
...affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. For this reason STIHL recommends that you use in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chain saws, mopeds, etc.). Store ... of any moisture that are for use only high-quality unleaded gasoline! When filling at authorized disposal locations. 28 MS 661 C-M When mixing, pour oil into the mixture. Gasoline Oil (STIHL 50:1 or equivalent high-quality oils) US gal. 1 2 1/2 5 US fl.oz. 2.6 6.4 12.8...
Product Instruction Manual
Page 33
...necessary, add chain oil also between refuelings to remove, especially in the oil tank when the fuel tank reaches empty. Rapidly biodegradable STIHL BioPlus is facing upwards N Open the filler cap Filling chain oil tank Standard setting See chapter "Oil Quantity Control". This results ... is environmentally harmful. N Always refill the chain oil tank every time you refuel In addition, when using this setting, you refuel MS 661 C-M 31 STIHL BioPlus), since it to use only a specially formulated chain lubricant. Take care not to aging (e.g. NOTICE Biological chain oil must monitor...
...necessary, add chain oil also between refuelings to remove, especially in the oil tank when the fuel tank reaches empty. Rapidly biodegradable STIHL BioPlus is facing upwards N Open the filler cap Filling chain oil tank Standard setting See chapter "Oil Quantity Control". This results ... is environmentally harmful. N Always refill the chain oil tank every time you refuel In addition, when using this setting, you refuel MS 661 C-M 31 STIHL BioPlus), since it to use only a specially formulated chain lubricant. Take care not to aging (e.g. NOTICE Biological chain oil must monitor...
Product Instruction Manual
Page 35
... serviced and maintained regularly by trained personnel, such as your STIHL servicing dealer, at the following intervals: Full-time usage: Part-time usage: Occasional usage: every 3 months every 6 months every 12 months Pre-heat the carburettor at medium speed (disengage chain brake!) MS 661 C-M 33 If engine trouble occurs, first return the slide...
... serviced and maintained regularly by trained personnel, such as your STIHL servicing dealer, at the following intervals: Full-time usage: Part-time usage: Occasional usage: every 3 months every 6 months every 12 months Pre-heat the carburettor at medium speed (disengage chain brake!) MS 661 C-M 33 If engine trouble occurs, first return the slide...