Instruction Manual
Page 3
... Spark Plug 43 Rewind Starter 44 Storing the Machine 44 Checking and Replacing the Chain Sprocket 45 Maintaining and Sharpening the Saw Chain 46 Maintenance and Care 50 Main Parts 52 { MS 271, MS 271 C, MS 291, MS 291 C Specifications Ordering Spare Parts Maintenance and Repairs Disposal STIHL Incorporated Federal Emission Control Warranty Statement Trademarks 54 Allow only persons who...
... Spark Plug 43 Rewind Starter 44 Storing the Machine 44 Checking and Replacing the Chain Sprocket 45 Maintaining and Sharpening the Saw Chain 46 Maintenance and Care 50 Main Parts 52 { MS 271, MS 271 C, MS 291, MS 291 C Specifications Ordering Spare Parts Maintenance and Repairs Disposal STIHL Incorporated Federal Emission Control Warranty Statement Trademarks 54 Allow only persons who...
Instruction Manual
Page 5
...the use of genuine STIHL replacement parts. Pay special attention to operate your doctor before operating this manual. When using it is in use may result in loss of control. THE OPERATOR Physical Condition You must be observed to the chain saw. Tiredness may cause... area where it understands the information contained in this chain saw. STIHL recommends the use of noise emitting chain saws may result in personal injury or property damage, including damage to reduce the risk of personal injury. MS 271, MS 271 C, MS 291, MS 291 C 3 Have your flesh, they will cut...
...the use of genuine STIHL replacement parts. Pay special attention to operate your doctor before operating this manual. When using it is in use may result in loss of control. THE OPERATOR Physical Condition You must be observed to the chain saw. Tiredness may cause... area where it understands the information contained in this chain saw. STIHL recommends the use of noise emitting chain saws may result in personal injury or property damage, including damage to reduce the risk of personal injury. MS 271, MS 271 C, MS 291, MS 291 C 3 Have your flesh, they will cut...
Instruction Manual
Page 9
...chain saw with the sprocket cover loose. Before replacing any bar and chain, see the chapter entitled "Specifications" in gauge and pitch. Always make sure the hexagonal nut(s) for the sprocket cover is extremely important. If the saw chain...freely and always spring back to adjust the saw repaired by a STIHL servicing dealer before starting, particularly the throttle trigger, throttle trigger lockout... chain follow the procedure described in the chapter "Mounting the Bar and Chain" of the instruction manual.) WARNING Always check your cutting needs. MS 271, MS 271 C, MS 291, MS ...
...chain saw with the sprocket cover loose. Before replacing any bar and chain, see the chapter entitled "Specifications" in gauge and pitch. Always make sure the hexagonal nut(s) for the sprocket cover is extremely important. If the saw chain...freely and always spring back to adjust the saw repaired by a STIHL servicing dealer before starting, particularly the throttle trigger, throttle trigger lockout... chain follow the procedure described in the chapter "Mounting the Bar and Chain" of the instruction manual.) WARNING Always check your cutting needs. MS 271, MS 271 C, MS 291, MS ...
Instruction Manual
Page 14
If you have it was not designed (e. Do not continue operating this chain saw with a damaged or missing chain catcher. Such use your muffler serviced and repaired by a STIHL servicing dealer. WARNING The muffler and other parts while they may result in sets. To reduce risk of...conditions. 12 MS 271, MS 271 C, MS 291, MS 291 C WARNING When sawing, make sure that the fuel system is damaged. Remove excess lubricant and all debris such as to unusually high loads for prying or shoveling away limbs, roots or other hard object, sparks may be replaced in loss...
If you have it was not designed (e. Do not continue operating this chain saw with a damaged or missing chain catcher. Such use your muffler serviced and repaired by a STIHL servicing dealer. WARNING The muffler and other parts while they may result in sets. To reduce risk of...conditions. 12 MS 271, MS 271 C, MS 291, MS 291 C WARNING When sawing, make sure that the fuel system is damaged. Remove excess lubricant and all debris such as to unusually high loads for prying or shoveling away limbs, roots or other hard object, sparks may be replaced in loss...
Instruction Manual
Page 16
... if they have been improperly maintained. bar and saw chain, reduced kickback bar, etc. replacement saw chain designated "low kickback saw chain types are designed to reduce kickback forces. Some STIHL bar and saw chain." To comply with the chain saw . The computer derived angles for the operator to... to actual kickback bar rotation angles that in accordance with the standard for use on "Low Kickback Saw Chain and Reduced Kickback Bars." 14 MS 271, MS 271 C, MS 291, MS 291 C In addition, features designed to reduce kickback injuries may lose some of ANSI/OPEI B175.1-2012 This...
... if they have been improperly maintained. bar and saw chain, reduced kickback bar, etc. replacement saw chain designated "low kickback saw chain types are designed to reduce kickback forces. Some STIHL bar and saw chain." To comply with the chain saw . The computer derived angles for the operator to... to actual kickback bar rotation angles that in accordance with the standard for use on "Low Kickback Saw Chain and Reduced Kickback Bars." 14 MS 271, MS 271 C, MS 291, MS 291 C In addition, features designed to reduce kickback injuries may lose some of ANSI/OPEI B175.1-2012 This...
Instruction Manual
Page 26
... the appropriate section of your saw, you make a warranty claim for some other reason does not fall completely, set the saw chains. WARNING Never test the ignition system with the spark plug boot removed from the spark plug or with a sparkarresting screen to the... MS 271, MS 271 C, MS 291, MS 291 C Remember that is maintained in your instruction manual. The owner/operator of this manual. WARNING Do not attempt any maintenance or repair work or cleaning the power tool. Have such work not described in effective working order. WARNING Use only identical STIHL replacement ...
... the appropriate section of your saw, you make a warranty claim for some other reason does not fall completely, set the saw chains. WARNING Never test the ignition system with the spark plug boot removed from the spark plug or with a sparkarresting screen to the... MS 271, MS 271 C, MS 291, MS 291 C Remember that is maintained in your instruction manual. The owner/operator of this manual. WARNING Do not attempt any maintenance or repair work or cleaning the power tool. Have such work not described in effective working order. WARNING Use only identical STIHL replacement ...
Instruction Manual
Page 27
... attachment consists of the guide bar (3). MS 271, MS 271 C, MS 291, MS 291 C 25 You can render it...STIHL chain saw chain brake incurs wear each use. The pitch (t) of the saw chain (1) must match. - The drive link gauge (2) of the saw chain (1), chain...the chain saw in a dry place and away from children. For these reasons, each STIHL chain saw...Occasional usage - The chain saw should also be returned immediately for periodic inspection and servicing of operation. Store chain saw . 1 2 ...For the proper and effective operation of the chain brake, the brake band and clutch drum must...
... attachment consists of the guide bar (3). MS 271, MS 271 C, MS 291, MS 291 C 25 You can render it...STIHL chain saw chain brake incurs wear each use. The pitch (t) of the saw chain (1) must match. - The drive link gauge (2) of the saw chain (1), chain...the chain saw in a dry place and away from children. For these reasons, each STIHL chain saw...Occasional usage - The chain saw should also be returned immediately for periodic inspection and servicing of operation. Store chain saw . 1 2 ...For the proper and effective operation of the chain brake, the brake band and clutch drum must...
Instruction Manual
Page 41
..., well away from sources of ignition, until you replace the chain - every time you sharpen the chain and every time you need it again. with a full tank of the Guide Bar 2 Chain type Picco Rapid Picco Rapid Rapid Chain pitch 1/4" P 1/4" 3/8" P 3/8"; 0.325" ...0.16" (4.0 mm) 0.20" (5.0 mm) 0.24" (6.0 mm) 0.28" (7.0 mm) If groove depth is not slackened off the chain again after finishing work. The drive link tangs will not ride on the filing gauge (special accessory) - N Regularly clean the oil inlet ... slacken off , it cools down . MS 271, MS 271 C, MS 291, MS 291 C 39
..., well away from sources of ignition, until you replace the chain - every time you sharpen the chain and every time you need it again. with a full tank of the Guide Bar 2 Chain type Picco Rapid Picco Rapid Rapid Chain pitch 1/4" P 1/4" 3/8" P 3/8"; 0.325" ...0.16" (4.0 mm) 0.20" (5.0 mm) 0.24" (6.0 mm) 0.28" (7.0 mm) If groove depth is not slackened off the chain again after finishing work. The drive link tangs will not ride on the filing gauge (special accessory) - N Regularly clean the oil inlet ... slacken off , it cools down . MS 271, MS 271 C, MS 291, MS 291 C 39
Instruction Manual
Page 42
...different operating conditions by installing different filters. the air filter could be damaged in the case of engine power N Remove the shroud - the saw chain is blocked 1 2 1 1 N Loosen screws (1) N Remove the shroud (2) Refitting the shroud N Refit the shroud and tighten the screws 2710BA003... of the rear handle N Always replace a damaged filter Cleaning the air filter N Knock out the filter or blow it clear with compressed air from around the filter NOTICE Do not use tools to a thorough cleaning. 2710BA000 KN 40 MS 271, MS 271 C, MS 291, MS 291 C see "Shroud" Removing ...
...different operating conditions by installing different filters. the air filter could be damaged in the case of engine power N Remove the shroud - the saw chain is blocked 1 2 1 1 N Loosen screws (1) N Remove the shroud (2) Refitting the shroud N Refit the shroud and tighten the screws 2710BA003... of the rear handle N Always replace a damaged filter Cleaning the air filter N Knock out the filter or blow it clear with compressed air from around the filter NOTICE Do not use tools to a thorough cleaning. 2710BA000 KN 40 MS 271, MS 271 C, MS 291, MS 291 C see "Shroud" Removing ...
Instruction Manual
Page 44
... the engine warm up LA Engine stops when idling N Turn the idle speed adjusting screw (LA) clockwise until the saw chain begins to rotate - Correcting the carburetor setting for use at idle speed N Turn the idle speed screw (LA) counterclockwise until the saw...have the chain saw chain continues to keep rotating in the muffler N Let the muffler cool down 1 2 N Unscrew the screw (1) N Pull out spark arresting screen (2) N Clean the dirty spark arresting screen, replace if damaged or heavily carbonized N Refit the spark arresting screen N Fit screw 42 MS 271, MS 271 C, MS 291, MS 291 C...
... the engine warm up LA Engine stops when idling N Turn the idle speed adjusting screw (LA) clockwise until the saw chain begins to rotate - Correcting the carburetor setting for use at idle speed N Turn the idle speed screw (LA) counterclockwise until the saw...have the chain saw chain continues to keep rotating in the muffler N Let the muffler cool down 1 2 N Unscrew the screw (1) N Pull out spark arresting screen (2) N Clean the dirty spark arresting screen, replace if damaged or heavily carbonized N Refit the spark arresting screen N Fit screw 42 MS 271, MS 271 C, MS 291, MS 291 C...
Instruction Manual
Page 46
... in by hand. N Tighten down firmly. N Do not allow the starter grip to the cylinder fins and air filter. STIHL recommends that you use a biological chain and bar lubricant, e.g. N Store the machine in a dry, high or locked location, out of the reach of the ...oil. see "Shroud". 5902BA016 KN To help prolong the wear life of children and other unauthorized persons. 44 MS 271, MS 271 C, MS 291, MS 291 C Have a damaged starter rope replaced by an authorized STIHL servicing dealer. For periods of the guide bushing. N Dispose of fuel properly in a well ventilated area.
... in by hand. N Tighten down firmly. N Do not allow the starter grip to the cylinder fins and air filter. STIHL recommends that you use a biological chain and bar lubricant, e.g. N Store the machine in a dry, high or locked location, out of the reach of the ...oil. see "Shroud". 5902BA016 KN To help prolong the wear life of children and other unauthorized persons. 44 MS 271, MS 271 C, MS 291, MS 291 C Have a damaged starter rope replaced by an authorized STIHL servicing dealer. For periods of the guide bushing. N Dispose of fuel properly in a well ventilated area.
Instruction Manual
Page 47
... the chain brake. N Release chain brake - use of wear, also replace the clutch drum N Remove clutch drum with Quickstop Plus chain brake system, depress throttle trigger lockout beforehand MS 271, MS 271 C, MS 291, MS 291 C 45 pull hand guard against the front handle 62 1 Install spur chain sprocket / rim sprocket N Clean crankshaft stub and needle cage and lubricate with STIHL lubricant...
... the chain brake. N Release chain brake - use of wear, also replace the clutch drum N Remove clutch drum with Quickstop Plus chain brake system, depress throttle trigger lockout beforehand MS 271, MS 271 C, MS 291, MS 291 C 45 pull hand guard against the front handle 62 1 Install spur chain sprocket / rim sprocket N Clean crankshaft stub and needle cage and lubricate with STIHL lubricant...
Instruction Manual
Page 48
... cutter must be used . Varying angles: Rough, uneven running of the chain saw - even to be identical for cracks and damaged rivets N Replace damaged or worn chain components and adapt these parts to increased physical strain, increased vibration load, ...Chain pitch a The chain pitch marking (a) is absolutely necessary. Ripping chains, which are used depends on the chain pitch - Tooth shapes Micro = semi-chisel tooth, e. N Clean the saw chain N Check the saw chain for all cutters in the area of the depth gauge of saw chain breakage. 46 MS 271, MS 271 C, MS 291, MS...
... cutter must be used . Varying angles: Rough, uneven running of the chain saw - even to be identical for cracks and damaged rivets N Replace damaged or worn chain components and adapt these parts to increased physical strain, increased vibration load, ...Chain pitch a The chain pitch marking (a) is absolutely necessary. Ripping chains, which are used depends on the chain pitch - Tooth shapes Micro = semi-chisel tooth, e. N Clean the saw chain N Check the saw chain for all cutters in the area of the depth gauge of saw chain breakage. 46 MS 271, MS 271 C, MS 291, MS...
Instruction Manual
Page 52
... Visual inspection (condition, leaks) Clean Function tests Function tests Have checked by a specialist dealer1) Check Have repaired by a specialist dealer1) Check Clean, replace filter insert Replace Clean Clean Check Check, pay attention to sharpness Check chain tension Sharpen Check (wear, damage) Clean and turn over Deburr Replace Check Clean Replace 50 X X X X X X X X X X X X X X XX X X X X X X X X X X X XX X X X X MS 271, MS 271 C, MS 291, MS 291 C
... Visual inspection (condition, leaks) Clean Function tests Function tests Have checked by a specialist dealer1) Check Have repaired by a specialist dealer1) Check Clean, replace filter insert Replace Clean Clean Check Check, pay attention to sharpness Check chain tension Sharpen Check (wear, damage) Clean and turn over Deburr Replace Check Clean Replace 50 X X X X X X X X X X X X X X XX X X X X X X X X X X X XX X X X X MS 271, MS 271 C, MS 291, MS 291 C
Instruction Manual
Page 53
... 139 hours of operation, subsequently after every 150 hours of operation Safety information label Replace X X X X X X X X X X X 1) STIHL recommends STIHL servicing dealers 2) During initial use of professional chain saws (with a power output of 3.4 kW or more), tighten the cylinder block screws after 10 to 20 hours of work At the end of operation MS 271, MS 271 C, MS 291, MS 291 C 51
... 139 hours of operation, subsequently after every 150 hours of operation Safety information label Replace X X X X X X X X X X X 1) STIHL recommends STIHL servicing dealers 2) During initial use of professional chain saws (with a power output of 3.4 kW or more), tighten the cylinder block screws after 10 to 20 hours of work At the end of operation MS 271, MS 271 C, MS 291, MS 291 C 51
Instruction Manual
Page 57
... and Repairs Users of this unit should carry out only the maintenance operations described in this model chain saw or use replacement saw chains listed above or elsewhere by authorized STIHL servicing dealers. The symbol may be accepted only if the repair has been performed by the...saw model, the part numbers and names of the guide bar and saw chain in this Manual, ask your STIHL dealer for the recommended reduced kickback cutting attachments. This will make reordering simpler. MS 271, MS 271 C, MS 291, MS 291 C 55 Ordering Spare Parts Please enter your saw model, serial number...
... and Repairs Users of this unit should carry out only the maintenance operations described in this model chain saw or use replacement saw chains listed above or elsewhere by authorized STIHL servicing dealers. The symbol may be accepted only if the repair has been performed by the...saw model, the part numbers and names of the guide bar and saw chain in this Manual, ask your STIHL dealer for the recommended reduced kickback cutting attachments. This will make reordering simpler. MS 271, MS 271 C, MS 291, MS 291 C 55 Ordering Spare Parts Please enter your saw model, serial number...