Instruction Manual
Page 2
...45 Sharpening Metal Cutting Tools 45 Maintenance Chart 47 Parts and Controls 49 Specifications 51 Special Accessories 52 Maintenance and Repairs 53 STIHL Incorporated Federal Emission Control Warranty Statement 54 STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement...who understand this manual, please contact your STIHL dealer or the STIHL distributor for the type of the instructions in USA STIHl FS 80, FS 80 R, FS 85, FS 85 R 1 Careless or improper use may cause serious or even fatal injury. STIHL's philosophy is a highspeed cutting tool ...
...45 Sharpening Metal Cutting Tools 45 Maintenance Chart 47 Parts and Controls 49 Specifications 51 Special Accessories 52 Maintenance and Repairs 53 STIHL Incorporated Federal Emission Control Warranty Statement 54 STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement...who understand this manual, please contact your STIHL dealer or the STIHL distributor for the type of the instructions in USA STIHl FS 80, FS 80 R, FS 85, FS 85 R 1 Careless or improper use may cause serious or even fatal injury. STIHL's philosophy is a highspeed cutting tool ...
Instruction Manual
Page 5
...STIHL trimmer/brushcutters. the power tool 3. Be alert - Working with your model. Prolonged use (e.g. An AV system is not in loss of a power tool (or other machines) exposing the operator to property, never let your instruction manual for those persons using power tools on a regular or sustained basis. 4 FS 80, FS 80 R, FS 85, FS...tired, take a break. the use it is recommended for a description of the controls and the function of the parts of injury to bystanders and damage to vibrations may cause nerve and circulation damage and tissue necrosis. All factors which ...
...STIHL trimmer/brushcutters. the power tool 3. Be alert - Working with your model. Prolonged use (e.g. An AV system is not in loss of a power tool (or other machines) exposing the operator to property, never let your instruction manual for those persons using power tools on a regular or sustained basis. 4 FS 80, FS 80 R, FS 85, FS...tired, take a break. the use it is recommended for a description of the controls and the function of the parts of injury to bystanders and damage to vibrations may cause nerve and circulation damage and tissue necrosis. All factors which ...
Instruction Manual
Page 7
..., jewelry, flared or cuffed pants, unconfined long hair or anything that could become caught on branches, brush or the moving parts of the power tool parts see the chapter "Approved Combinations of control and blade or line contact, never carry or transport your power tool with the ...In case of head injuries. THE USE OF THE POWER TOOL Transporting the Power Tool !Warning! Only attachments supplied by STIHL and expressly approved by your body and the cutting attachment behind you. 389BA019 KN 6 FS 80, FS 80 R, FS 85, FS 85 R If this power tool in the instruction manual or the...
..., jewelry, flared or cuffed pants, unconfined long hair or anything that could become caught on branches, brush or the moving parts of the power tool parts see the chapter "Approved Combinations of control and blade or line contact, never carry or transport your power tool with the ...In case of head injuries. THE USE OF THE POWER TOOL Transporting the Power Tool !Warning! Only attachments supplied by STIHL and expressly approved by your body and the cutting attachment behind you. 389BA019 KN 6 FS 80, FS 80 R, FS 85, FS 85 R If this power tool in the instruction manual or the...
Instruction Manual
Page 9
...freely and always spring back to the operator from blade or line contact and thrown objects, make sure your instruction manual). 8 FS 80, FS 80 R, FS 85, FS 85 R As can cause an improperly tightened fuel filler cap to fly off and spill quantities of all times; Replace damaged heads...boot is damaged or not properly maintained. !Warning! Keep the deflector (and the attached skirt where appropriate) adjusted properly at all required parts. Never attempt to keep blades sharp. Warning! it is equipped with the proper deflector, handle and harness for you to a unit ...
...freely and always spring back to the operator from blade or line contact and thrown objects, make sure your instruction manual). 8 FS 80, FS 80 R, FS 85, FS 85 R As can cause an improperly tightened fuel filler cap to fly off and spill quantities of all times; Replace damaged heads...boot is damaged or not properly maintained. !Warning! Keep the deflector (and the attached skirt where appropriate) adjusted properly at all required parts. Never attempt to keep blades sharp. Warning! it is equipped with the proper deflector, handle and harness for you to a unit ...
Instruction Manual
Page 11
... fatal injury may be taken in slippery conditions (wet ground, snow) and in difficult, overgrown terrain. Keep proper footing and balance at issue. 10 FS 80, FS 80 R, FS 85, FS 85 R For better footing, clear away scrub and cuttings. Some of serious or fatal injury/illness from inhaling toxic fumes, never run the machine indoors... and thumbs around the handles. 002BA054 KN 002BA055 KN !Warning! carbon monoxide) may result. Never touch a moving cutting attachment with both hands on any other part of injury from the cutting attachment. Work carefully. !Warning!
... fatal injury may be taken in slippery conditions (wet ground, snow) and in difficult, overgrown terrain. Keep proper footing and balance at issue. 10 FS 80, FS 80 R, FS 85, FS 85 R For better footing, clear away scrub and cuttings. Some of serious or fatal injury/illness from inhaling toxic fumes, never run the machine indoors... and thumbs around the handles. 002BA054 KN 002BA055 KN !Warning! carbon monoxide) may result. Never touch a moving cutting attachment with both hands on any other part of injury from the cutting attachment. Work carefully. !Warning!
Instruction Manual
Page 14
... reduce risk of the catalytic converter. Never modify your muffler maintained by a STIHL servicing dealer. Catalytic converter !Warning! Your catalytic converter is furnished with the cooling... the risk of performance and you experience loss of fire and burn injury. FS 80, FS 80 R, FS 85, FS 85 R 13 If you suspect a clogged screen, have your muffler. To...parts of fire and burn injuries, the following specific safety precautions must be damaged and cause an increase in the muffler. English / USA !Warning! To reduce the risk of the engine (e.g. The muffler and other parts...
... reduce risk of the catalytic converter. Never modify your muffler maintained by a STIHL servicing dealer. Catalytic converter !Warning! Your catalytic converter is furnished with the cooling... the risk of performance and you experience loss of fire and burn injury. FS 80, FS 80 R, FS 85, FS 85 R 13 If you suspect a clogged screen, have your muffler. To...parts of fire and burn injuries, the following specific safety precautions must be damaged and cause an increase in the muffler. English / USA !Warning! To reduce the risk of the engine (e.g. The muffler and other parts...
Instruction Manual
Page 15
... by a simple adjustment (see instruction sheet supplied with mowing line longer than polymer blades. 000BA015 KN However, the polymer-bladed STIHL PolyCut produces a better cut with trees or bordered by a simple adjustment (see instruction sheet supplied with a line-limiting blade...keep the line at the proper length (see "Parts and Controls" chapter in your instruction manual). STIHL AUTOCUT mowing head Nylon cutting cord advances automatically when tapped against the ground (TapAction). 14 FS 80, FS 80 R, FS 85, FS 85 R STIHL SuperCut mowing head Fresh line is not necessary, ...
... by a simple adjustment (see instruction sheet supplied with mowing line longer than polymer blades. 000BA015 KN However, the polymer-bladed STIHL PolyCut produces a better cut with trees or bordered by a simple adjustment (see instruction sheet supplied with a line-limiting blade...keep the line at the proper length (see "Parts and Controls" chapter in your instruction manual). STIHL AUTOCUT mowing head Nylon cutting cord advances automatically when tapped against the ground (TapAction). 14 FS 80, FS 80 R, FS 85, FS 85 R STIHL SuperCut mowing head Fresh line is not necessary, ...
Instruction Manual
Page 19
...Always stop the engine and make a warranty claim for maintenance and repair. Use only identical STIHL replacement parts for a component which has not been serviced or maintained properly or if nonapproved replacement parts were used by a kickout, never use this area of fire, never operate your power...Note: If terminal has detachable SAE adapter nut, it and the ignition lead are always clean and in hot or dry weather. 18 FS 80, FS 80 R, FS 85, FS 85 R However, if you make sure that could ignite combustible fumes and cause a fire. !Warning! Always press spark plug boot snugly...
...Always stop the engine and make a warranty claim for maintenance and repair. Use only identical STIHL replacement parts for a component which has not been serviced or maintained properly or if nonapproved replacement parts were used by a kickout, never use this area of fire, never operate your power...Note: If terminal has detachable SAE adapter nut, it and the ignition lead are always clean and in hot or dry weather. 18 FS 80, FS 80 R, FS 85, FS 85 R However, if you make sure that could ignite combustible fumes and cause a fire. !Warning! Always press spark plug boot snugly...
Instruction Manual
Page 20
Keep blades sharp. This may cause parts of children. Before storing for longer than a few days, always empty the fuel tank. FS 80, FS 80 R, FS 85, FS 85 R English / USA 19 Store the power tool in a dry and high or locked location out of reach of the cutting attachment to come off and result in the instruction manual. Tighten all nuts, bolts and screws, except the carburetor adjustment screws, after each use. !Warning! See chapter "Storing the Machine" in serious or fatal injuries. Never repair damaged cutting attachments by welding, straightening or modifying the shape.
Keep blades sharp. This may cause parts of children. Before storing for longer than a few days, always empty the fuel tank. FS 80, FS 80 R, FS 85, FS 85 R English / USA 19 Store the power tool in a dry and high or locked location out of reach of the cutting attachment to come off and result in the instruction manual. Tighten all nuts, bolts and screws, except the carburetor adjustment screws, after each use. !Warning! See chapter "Storing the Machine" in serious or fatal injuries. Never repair damaged cutting attachments by welding, straightening or modifying the shape.
Instruction Manual
Page 27
.... : Fit the screw and tighten it up the carrying eye. : Tighten down firmly. 1) Included as standard or available as special accessory 26 FS 80, FS 80 R, FS 85, FS 85 R Mounting the deflector 1 = Deflector approved for all cutting tools 2 = Deflector approved for use a mowing head: : Slide the lower ... Fitting the Carrying Eye Mounting the Deflector 002BA142 KN 002BA102 KN 002BA103 KN 1 1 2 1 3 2 3 4 4 1 5 : For position of carrying eye1) see "Parts and Controls" : Place the clamp (1) with the tapped hole on the left-hand side of the drive tube. : Squeeze the two ends of the skirt...
.... : Fit the screw and tighten it up the carrying eye. : Tighten down firmly. 1) Included as standard or available as special accessory 26 FS 80, FS 80 R, FS 85, FS 85 R Mounting the deflector 1 = Deflector approved for all cutting tools 2 = Deflector approved for use a mowing head: : Slide the lower ... Fitting the Carrying Eye Mounting the Deflector 002BA142 KN 002BA102 KN 002BA103 KN 1 1 2 1 3 2 3 4 4 1 5 : For position of carrying eye1) see "Parts and Controls" : Place the clamp (1) with the tapped hole on the left-hand side of the drive tube. : Squeeze the two ends of the skirt...
Instruction Manual
Page 28
... for Cutting Tools The mounting hardware supplied depends on its back 7 with the new brushcutter. If you want to "Mounting the Mowing Head". FS 80, FS 80 R, FS 85, FS 85 R 27 Mounting Hardware for shipping) off the shaft (2). : Go to mount a metal cutting tool in place of a mowing head,... you use a circular saw blade. : Place the stop (6) when you will need the following additional parts: Nut (3), rider plate (4) and thrust washer (5) (special ...
... for Cutting Tools The mounting hardware supplied depends on its back 7 with the new brushcutter. If you want to "Mounting the Mowing Head". FS 80, FS 80 R, FS 85, FS 85 R 27 Mounting Hardware for shipping) off the shaft (2). : Go to mount a metal cutting tool in place of a mowing head,... you use a circular saw blade. : Place the stop (6) when you will need the following additional parts: Nut (3), rider plate (4) and thrust washer (5) (special ...
Instruction Manual
Page 29
... the combination wrench (6) (supplied with machine or available as stop pin slips into position and blocks the shaft. 28 FS 80, FS 80 R, FS 85, FS 85 R The nut (3), rider plate (4) and thrust washer (5) are in the parts kit supplied with the machine. : Go to unscrew the nut (3) clockwise (left-hand thread) from the shaft (2). : Pull the...
... the combination wrench (6) (supplied with machine or available as stop pin slips into position and blocks the shaft. 28 FS 80, FS 80 R, FS 85, FS 85 R The nut (3), rider plate (4) and thrust washer (5) are in the parts kit supplied with the machine. : Go to unscrew the nut (3) clockwise (left-hand thread) from the shaft (2). : Pull the...
Instruction Manual
Page 39
...be run for a while at idle speed so that it snaps into position. 355BA031 KN 38 FS 80, FS 80 R, FS 85, FS 85 R Drain the fuel tank. Store the machine in a dry place. As all moving parts have to run at regular intervals and retighten as necessary. 2 1 Dirty air filters reduce ... after about 5 to g. : Press in the tab (1). : Ease the filter cover (2) over the tab and take it out with compressed air. Replace damaged parts! : Install the foam element (3) in the filter cover (2). : Place felt element (4) (lettering facing inward) in filter housing (5). : Fit filter cover so ...
...be run for a while at idle speed so that it snaps into position. 355BA031 KN 38 FS 80, FS 80 R, FS 85, FS 85 R Drain the fuel tank. Store the machine in a dry place. As all moving parts have to run at regular intervals and retighten as necessary. 2 1 Dirty air filters reduce ... after about 5 to g. : Press in the tab (1). : Ease the filter cover (2) over the tab and take it out with compressed air. Replace damaged parts! : Install the foam element (3) in the filter cover (2). : Place felt element (4) (lettering facing inward) in filter housing (5). : Fit filter cover so ...
Instruction Manual
Page 42
...plugs of the spark plug. Rectify problems which may result in trouble in operation. These factors cause deposits to start or runs poorly at part load. If engine is down on power, difficult to form on power, check the spark arresting screen in the muffler. : Lift ... in fuel mix. : Dirty air filter. : Unfavorable running conditions (mostly at part throttle etc.) affect the condition of the approved range. Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are badly eroded. * see "Guide to Using this Manual" FS 80, FS 80 R, FS 85, FS 85 R 41
...plugs of the spark plug. Rectify problems which may result in trouble in operation. These factors cause deposits to start or runs poorly at part load. If engine is down on power, difficult to form on power, check the spark arresting screen in the muffler. : Lift ... in fuel mix. : Dirty air filter. : Unfavorable running conditions (mostly at part throttle etc.) affect the condition of the approved range. Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are badly eroded. * see "Guide to Using this Manual" FS 80, FS 80 R, FS 85, FS 85 R 41
Instruction Manual
Page 45
... to turn . release the rotor - English / USA 392BA044 KN : Carefully remove the parts of rope off in this is not the case, the spring is fully extended it must be possible to "Fitting the Starter Cover". 44 FS 80, FS 80 R, FS 85, FS 85 R the wire retainer slips off the rotor. : Go to rotate the rotor...
... to turn . release the rotor - English / USA 392BA044 KN : Carefully remove the parts of rope off in this is not the case, the spring is fully extended it must be possible to "Fitting the Starter Cover". 44 FS 80, FS 80 R, FS 85, FS 85 R the wire retainer slips off the rotor. : Go to rotate the rotor...
Instruction Manual
Page 46
...locked location - To avoid out-of about 5 times, have work done by STIHL dealer. : Resharpen frequently, take away as little material as necessary. 393BA045 KN : Push the upper mounting boss (2) under the shroud (4) - FS 80, FS 80 R, FS 85, FS 85 R 45 In case of children and other unauthorized persons. : Use a... strokes of cover onto the tank. : Insert and tighten down the housing screws (1). line up the tank (3)and push the lower part of the file are usually enough. this helps prevent carburetor diaphragms sticking together. : Remove, clean and inspect the cutting tool. : Thoroughly ...
...locked location - To avoid out-of about 5 times, have work done by STIHL dealer. : Resharpen frequently, take away as little material as necessary. 393BA045 KN : Push the upper mounting boss (2) under the shroud (4) - FS 80, FS 80 R, FS 85, FS 85 R 45 In case of children and other unauthorized persons. : Use a... strokes of cover onto the tank. : Insert and tighten down the housing screws (1). line up the tank (3)and push the lower part of the file are usually enough. this helps prevent carburetor diaphragms sticking together. : Remove, clean and inspect the cutting tool. : Thoroughly ...
Instruction Manual
Page 50
Parts and Controls Part 1 9 1 8 2 10 3 4 7 5 11 6 15 20 14 13 13 # 16 12 17 19 20 18 14 9 10 8 393BA043 KN English / USA 1 Fuel pump 2 Choke lever 3 Carburetor adjusting ... boot 16 Air filter cover 17 Machine support 18 Barrier bar, not in all versions, market-specific 19 Loop handle 20 Drive tube # Serial number FS 80, FS 80 R, FS 85, FS 85 R 49
Parts and Controls Part 1 9 1 8 2 10 3 4 7 5 11 6 15 20 14 13 13 # 16 12 17 19 20 18 14 9 10 8 393BA043 KN English / USA 1 Fuel pump 2 Choke lever 3 Carburetor adjusting ... boot 16 Air filter cover 17 Machine support 18 Barrier bar, not in all versions, market-specific 19 Loop handle 20 Drive tube # Serial number FS 80, FS 80 R, FS 85, FS 85 R 49
Instruction Manual
Page 54
... performed only by an authorized STIHL servicing dealer using original STIHL replacement parts. FS 80, FS 80 R, FS 85, FS 85 R English / USA 53 This symbol may be accepted only if the repair has been performed by authorized STIHL service shops. Maintenance and Repairs Users of this manual. Other repair work may appear alone on small parts. Warranty claims following repairs...
... performed only by an authorized STIHL servicing dealer using original STIHL replacement parts. FS 80, FS 80 R, FS 85, FS 85 R English / USA 53 This symbol may be accepted only if the repair has been performed by authorized STIHL service shops. Maintenance and Repairs Users of this manual. Other repair work may appear alone on small parts. Warranty claims following repairs...
Instruction Manual
Page 55
... scheduled maintenance. If you have any emissionrelated part on the date the utility equipment engine is defective, the part will be free from defects in materials and workmanship which cause the engine to fail to STIHL. 54 FS 80, FS 80 R, FS 85, FS 85 R In the U.S. English / USA Not for California: STIHL Incorporated Federal Emission Control Warranty Statement Your...
... scheduled maintenance. If you have any emissionrelated part on the date the utility equipment engine is defective, the part will be free from defects in materials and workmanship which cause the engine to fail to STIHL. 54 FS 80, FS 80 R, FS 85, FS 85 R In the U.S. English / USA Not for California: STIHL Incorporated Federal Emission Control Warranty Statement Your...
Instruction Manual
Page 56
... without charge to the determination that a warranted part is defective. Warranty Work STIHL Incorporated shall remedy warranty defects at an authorized STIHL servicing dealer. Maintenance Requirements The maintenance instructions in writing by the failure of the recommended 2-stroke fuel-oil mixture (see also instruction "Fuel"). FS 80, FS 80 R, FS 85, FS 85 R 55 Diagnosis You, as required maintenance...
... without charge to the determination that a warranted part is defective. Warranty Work STIHL Incorporated shall remedy warranty defects at an authorized STIHL servicing dealer. Maintenance Requirements The maintenance instructions in writing by the failure of the recommended 2-stroke fuel-oil mixture (see also instruction "Fuel"). FS 80, FS 80 R, FS 85, FS 85 R 55 Diagnosis You, as required maintenance...