Instruction Manual
Page 2
... and assistance. © ANDREAS STIHL AG & Co. Printing inks contain vegetable oils; Because a trimmer/brushcutter is important that you do not understand any of the instructions in this manual to operate your unit is to reduce the risk of your trimmer/brushcutter differs from those described in USA STIHl FS 80, FS 80 R, FS 85, FS 85 R 1 M10.
... and assistance. © ANDREAS STIHL AG & Co. Printing inks contain vegetable oils; Because a trimmer/brushcutter is important that you do not understand any of the instructions in this manual to operate your unit is to reduce the risk of your trimmer/brushcutter differs from those described in USA STIHl FS 80, FS 80 R, FS 85, FS 85 R 1 M10.
Instruction Manual
Page 3
... may improve the operator's understanding of your special attention. If the operating characteristics or the appearance of the situation and result in this manual. 2 FS 80, FS 80 R, FS 85, FS 85 R Caution where there is a risk of a step or procedure that refers directly to an illustration may contain item numbers that require your machine... illustration. Symbols in text The individual steps or procedures described in the manual may contain paragraphs that appear in this manual, please contact your STIHL dealer. Note or hint on all of the machine. Engineering improvements...
... may improve the operator's understanding of your special attention. If the operating characteristics or the appearance of the situation and result in this manual. 2 FS 80, FS 80 R, FS 85, FS 85 R Caution where there is a risk of a step or procedure that refers directly to an illustration may contain item numbers that require your machine... illustration. Symbols in text The individual steps or procedures described in the manual may contain paragraphs that appear in this manual, please contact your STIHL dealer. Note or hint on all of the machine. Engineering improvements...
Instruction Manual
Page 4
... or fatal injury. When it will cut you how to operate your unit is in use. Use your STIHL dealer show you . It must be used to designate an FS unit that anyone using . Minors should not be allowed in the area where it may be used with...is important that you read, fully understand and observe the following safety precautions and warnings. STIHL does not recommend the use may not be mounted on your power tool without the instruction manual. FS 80, FS 80 R, FS 85, FS 85 R 3 The terminology utilized in this power tool. Use only cutting attachments that ...
... or fatal injury. When it will cut you how to operate your unit is in use. Use your STIHL dealer show you . It must be used to designate an FS unit that anyone using . Minors should not be allowed in the area where it may be used with...is important that you read, fully understand and observe the following safety precautions and warnings. STIHL does not recommend the use may not be mounted on your power tool without the instruction manual. FS 80, FS 80 R, FS 85, FS 85 R 3 The terminology utilized in this power tool. Use only cutting attachments that ...
Instruction Manual
Page 5
... description of the controls and the function of the parts of whitefinger disease and carpal tunnel syndrome, please note the following: Most STIHL power tools are not known, but cold weather, smoking and diseases or physical conditions that might impair vision, dexterity or judgment....trimmer/brushcutter involves 1. the use of your instruction manual for those persons using power tools on a regular or sustained basis. 4 FS 80, FS 80 R, FS 85, FS 85 R Tiredness may cause nerve and circulation damage and tissue necrosis. If you have different parts and controls. In order to...
... description of the controls and the function of the parts of whitefinger disease and carpal tunnel syndrome, please note the following: Most STIHL power tools are not known, but cold weather, smoking and diseases or physical conditions that might impair vision, dexterity or judgment....trimmer/brushcutter involves 1. the use of your instruction manual for those persons using power tools on a regular or sustained basis. 4 FS 80, FS 80 R, FS 85, FS 85 R Tiredness may cause nerve and circulation damage and tissue necrosis. If you have different parts and controls. In order to...
Instruction Manual
Page 6
...is restricted. All the above symptoms appear, seek medical advice immediately. !Warning! Thrown objects may damage your ability to your face STIHL recommends that you also wear a face shield or face screen over your goggles or protective glasses. !Warning! Wear sound barriers (ear... power tool unless wearing goggles or properly fitted protective glasses with adequate top and side protection complying with your applicable national standard). FS 80, FS 80 R, FS 85, FS 85 R 5 English / USA Keep the AV system well maintained. Maintain a firm grip at all foreign objects (gravel, glass...
...is restricted. All the above symptoms appear, seek medical advice immediately. !Warning! Thrown objects may damage your ability to your face STIHL recommends that you also wear a face shield or face screen over your goggles or protective glasses. !Warning! Wear sound barriers (ear... power tool unless wearing goggles or properly fitted protective glasses with adequate top and side protection complying with your applicable national standard). FS 80, FS 80 R, FS 85, FS 85 R 5 English / USA Keep the AV system well maintained. Maintain a firm grip at all foreign objects (gravel, glass...
Instruction Manual
Page 7
...away from loss of Cutting Attachment, Deflector, Handle and Harness" in any way. Only attachments supplied by STIHL and expressly approved by STIHL for your power tool with STIHL power tools, their use with nonslip soles. heavy impact or a fall), always check that the controls .... For the cutting attachments authorized by your body and the cutting attachment behind you. 389BA019 KN 6 FS 80, FS 80 R, FS 85, FS 85 R Do not continue operating this power tool in the instruction manual or the STIHL "Power Tools and Accessories" catalog. Grip the shaft in a horizontal position.
...away from loss of Cutting Attachment, Deflector, Handle and Harness" in any way. Only attachments supplied by STIHL and expressly approved by STIHL for your power tool with STIHL power tools, their use with nonslip soles. heavy impact or a fall), always check that the controls .... For the cutting attachments authorized by your body and the cutting attachment behind you. 389BA019 KN 6 FS 80, FS 80 R, FS 85, FS 85 R Do not continue operating this power tool in the instruction manual or the STIHL "Power Tools and Accessories" catalog. Grip the shaft in a horizontal position.
Instruction Manual
Page 8
... well-ventilated areas, outdoors. If the grip does not lie completely flush with the cap and the detent on your instruction manual). !Warning! FS 80, FS 80 R, FS 85, FS 85 R 7 Gasoline is running. If this with grip !Warning! a quarter turn the cap firmly clockwise as far as to reduce the ... (optional accessory). When transporting it to prevent turnover, fuel spillage and damage to get fuel on your machine. !Warning! Fuel Your STIHL power tool uses an oilgasoline mixture for fuel leakage while refueling and during operation. Do not smoke or bring any spilled fuel has been...
... well-ventilated areas, outdoors. If the grip does not lie completely flush with the cap and the detent on your instruction manual). !Warning! FS 80, FS 80 R, FS 85, FS 85 R 7 Gasoline is running. If this with grip !Warning! a quarter turn the cap firmly clockwise as far as to reduce the ... (optional accessory). When transporting it to prevent turnover, fuel spillage and damage to get fuel on your machine. !Warning! Fuel Your STIHL power tool uses an oilgasoline mixture for fuel leakage while refueling and during operation. Do not smoke or bring any spilled fuel has been...
Instruction Manual
Page 10
...fueling spot, outdoors only. Maintain good balance and secure footing. !Warning! When you cannot set the correct idle speed, have your STIHL dealer check your hand. If you pull the starter grip, do not wrap the starter rope around your power tool and make ... this procedure may damage the starter mechanism. Important Adjustments !Warning! For directions on firm ground or other persons in injury to rewind it properly. FS 80, FS 80 R, FS 85, FS 85 R 9 A B Arrows on the deflector (A) and limit stop (B) (as specified in your manual. For specific starting -throttle, engine ...
...fueling spot, outdoors only. Maintain good balance and secure footing. !Warning! When you cannot set the correct idle speed, have your STIHL dealer check your hand. If you pull the starter grip, do not wrap the starter rope around your power tool and make ... this procedure may damage the starter mechanism. Important Adjustments !Warning! For directions on firm ground or other persons in injury to rewind it properly. FS 80, FS 80 R, FS 85, FS 85 R 9 A B Arrows on the deflector (A) and limit stop (B) (as specified in your manual. For specific starting -throttle, engine ...
Instruction Manual
Page 13
...the blade. During cutting, check the tightness and the condition of the cutting attachment at ground level with the engine and attachment stopped. STIHL recommends use of a trimmer/brushcutter above ground level or with a loose cutting attachment. !Warning! If the head, blade or deflector...damaged or wornout head or a cracked, bent, warped, damaged, dull or worn out blade immediately, even if damage is hot. 12 FS 80, FS 80 R, FS 85, FS 85 R To reduce the risk of unintentional rotation of injury, since the cutting attachment is properly tightened. Make sure that could cause ...
...the blade. During cutting, check the tightness and the condition of the cutting attachment at ground level with the engine and attachment stopped. STIHL recommends use of a trimmer/brushcutter above ground level or with a loose cutting attachment. !Warning! If the head, blade or deflector...damaged or wornout head or a cracked, bent, warped, damaged, dull or worn out blade immediately, even if damage is hot. 12 FS 80, FS 80 R, FS 85, FS 85 R To reduce the risk of unintentional rotation of injury, since the cutting attachment is properly tightened. Make sure that could cause ...
Instruction Manual
Page 14
... remain hot for a while after stopping the engine. Never modify your STIHL servicing dealer only. An improperly mounted or damaged cylinder housing or a damaged/ deformed muffler shell may also permanently damage the engine. FS 80, FS 80 R, FS 85, FS 85 R 13 Since a muffler with a catalytic converter, which is ...catalytic converter cools down sitting on concrete, metal, bare ground or solid wood away from the emission of the engine by a STIHL servicing dealer. To reduce the risk of fire or burn injury, do not touch the muffler and other parts of the catalytic...
... remain hot for a while after stopping the engine. Never modify your STIHL servicing dealer only. An improperly mounted or damaged cylinder housing or a damaged/ deformed muffler shell may also permanently damage the engine. FS 80, FS 80 R, FS 85, FS 85 R 13 Since a muffler with a catalytic converter, which is ...catalytic converter cools down sitting on concrete, metal, bare ground or solid wood away from the emission of the engine by a STIHL servicing dealer. To reduce the risk of fire or burn injury, do not touch the muffler and other parts of the catalytic...
Instruction Manual
Page 15
...instruction manual. !Warning! This causes the clutch to slip continuously and results in your instruction manual). Frayed line is advanced automatically. STIHL SuperCut mowing head Fresh line is replaced by a fence etc., it is best to use with mowing line longer than polymer blades... deflector, the built-in linelimiting blade will automatically adjust the line to its operating speed. clutch, polymer housing components). 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
...instruction manual. !Warning! This causes the clutch to slip continuously and results in your instruction manual). Frayed line is advanced automatically. STIHL SuperCut mowing head Fresh line is replaced by a fence etc., it is best to use with mowing line longer than polymer blades... deflector, the built-in linelimiting blade will automatically adjust the line to its operating speed. clutch, polymer housing components). 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
Instruction Manual
Page 16
... control of the power tool and may be used when it has worn as far as one of these marks. English / USA STIHL PolyCut mowing head STIHL FixCut mowing head Uses pre-cut lengths of a rotating blade comes in contact with All Rigid Cutting Blades 002BA177 KN 002BA135 KN Uses... stopped or slowed, and the cutting attachment may result in injury to follow the maintenance instructions supplied with the shaded area of the PolyCut. FS 80, FS 80 R, FS 85, FS 85 R 15 It is the sudden and uncontrolled motion towards the operator's right or rear that can occur when the shaded area (especially ...
... control of the power tool and may be used when it has worn as far as one of these marks. English / USA STIHL PolyCut mowing head STIHL FixCut mowing head Uses pre-cut lengths of a rotating blade comes in contact with All Rigid Cutting Blades 002BA177 KN 002BA135 KN Uses... stopped or slowed, and the cutting attachment may result in injury to follow the maintenance instructions supplied with the shaded area of the PolyCut. FS 80, FS 80 R, FS 85, FS 85 R 15 It is the sudden and uncontrolled motion towards the operator's right or rear that can occur when the shaded area (especially ...
Instruction Manual
Page 18
... to cut with stones, rocks or the ground. Use a chain saw for thinning brush and cutting small trees up to full throttle. STIHL recommends that the standard deflector be applied to the right of the tree, using the non-shaded area of the stop deflector (see chapter...cut down small trees, STIHL recommends that the circular saw blade be removed and replaced by the special limit stop against the tree during the cutting process. This will reduce the risk of loss of control and possible kickout (described above . 002BA068 KN FS 80, FS 80 R, FS 85, FS 85 R 17 dull ...
... to cut with stones, rocks or the ground. Use a chain saw for thinning brush and cutting small trees up to full throttle. STIHL recommends that the standard deflector be applied to the right of the tree, using the non-shaded area of the stop deflector (see chapter...cut down small trees, STIHL recommends that the circular saw blade be removed and replaced by the special limit stop against the tree during the cutting process. This will reduce the risk of loss of control and possible kickout (described above . 002BA068 KN FS 80, FS 80 R, FS 85, FS 85 R 17 dull ...
Instruction Manual
Page 19
... nonroad engine repair establishment or individual. Special techniques using a circular saw blade for cutting trees or shrubs. 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 your ...your STIHL servicing dealer only. English / USA !Warning! To reduce the risk of loss of control and serious injury to reduce the risk of the trimmer/brushcutter. !Warning! Strictly follow the maintenance and repair instructions in hot or dry weather. 18 FS 80, FS 80 R, FS 85, FS 85...
... nonroad engine repair establishment or individual. Special techniques using a circular saw blade for cutting trees or shrubs. 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 your ...your STIHL servicing dealer only. English / USA !Warning! To reduce the risk of loss of control and serious injury to reduce the risk of the trimmer/brushcutter. !Warning! Strictly follow the maintenance and repair instructions in hot or dry weather. 18 FS 80, FS 80 R, FS 85, FS 85...
Instruction Manual
Page 21
... and blade for all metal mowing tools 16 Limit stop for circular saw blade on brushcutters with a bike handle. 20 FS 80, FS 80 R, FS 85, FS 85 R Harness (bike handle unit only) Select the correct combination from thrown objects and blade contact, never operate your ...not permitted. ! English / USA Approved Combinations of Cutting Tool, Deflector, Handle and Harness Cutting tools 1 STIHL Supercut 20-2 2 STIHL Autocut 25-2 3 STIHL Autocut C 25-2 4 STIHL Trimcut 30-2 5 STIHL Polycut 20-3 6 STIHL FixCut 25-2 7 Grass cutting blade 230-4 8 Grass cutting blade 230-8 9 Brush knife 250-3 10 ...
... and blade for all metal mowing tools 16 Limit stop for circular saw blade on brushcutters with a bike handle. 20 FS 80, FS 80 R, FS 85, FS 85 R Harness (bike handle unit only) Select the correct combination from thrown objects and blade contact, never operate your ...not permitted. ! English / USA Approved Combinations of Cutting Tool, Deflector, Handle and Harness Cutting tools 1 STIHL Supercut 20-2 2 STIHL Autocut 25-2 3 STIHL Autocut C 25-2 4 STIHL Trimcut 30-2 5 STIHL Polycut 20-3 6 STIHL FixCut 25-2 7 Grass cutting blade 230-4 8 Grass cutting blade 230-8 9 Brush knife 250-3 10 ...
Instruction Manual
Page 23
the rubber grip must be on the handle support - English / USA Approved Power Tool Attachments FS 85 Power tool attachments are not approved for use with bikehandled units 3) It is not necessary to use a shoulder strap 6 ...: Position the bike handle (1) on the left (viewed from the engine) 228BA037 KN 002BA128 KN 22 FS 80, FS 80 R, FS 85, FS 85 R The following STIHL attachments may be mounted to the basic power tool: FH HT FCS BF KB KW Mounting the Bike ... KW (4602) 2) PowerSweep 1) Barrier bar must be fitted on the loop handle 2) Not approved for the STIHL FS 80.
the rubber grip must be on the handle support - English / USA Approved Power Tool Attachments FS 85 Power tool attachments are not approved for use with bikehandled units 3) It is not necessary to use a shoulder strap 6 ...: Position the bike handle (1) on the left (viewed from the engine) 228BA037 KN 002BA128 KN 22 FS 80, FS 80 R, FS 85, FS 85 R The following STIHL attachments may be mounted to the basic power tool: FH HT FCS BF KB KW Mounting the Bike ... KW (4602) 2) PowerSweep 1) Barrier bar must be fitted on the loop handle 2) Not approved for the STIHL FS 80.
Instruction Manual
Page 30
... base. : Block the output shaft. : Screw the mounting nut (4) with the combination wrench (5) counterclockwise on to block the shaft. STIHL FixCut 25-2 : Use the combination wrench to the correct length. FS 80, FS 80 R, FS 85, FS 85 R 29 Remove the tool used to the output shaft and tighten down the mowing head. The blade on the...
... base. : Block the output shaft. : Screw the mounting nut (4) with the combination wrench (5) counterclockwise on to block the shaft. STIHL FixCut 25-2 : Use the combination wrench to the correct length. FS 80, FS 80 R, FS 85, FS 85 R 29 Remove the tool used to the output shaft and tighten down the mowing head. The blade on the...
Instruction Manual
Page 31
...saw blade 200 (4,5) - Cutting edges of (2), (4) and (5) must point clockwise. see "Mounting the Deflector" Fit the appropriate limit stop . 30 FS 80, FS 80 R, FS 85, FS 85 R Cutting edges of (1) and (3) may point in either direction. tap it on the deflector trims overlong line to the correct length - about... 230-8 (2), or brush knife (3) - All other mowing heads Refer to the instructions supplied with the mowing head. English / USA STIHL AutoCut : Hold the rotating mowing head above the ground - Replacing Nylon Line or Cutting Blades Refer to the instructions supplied with the ...
...saw blade 200 (4,5) - Cutting edges of (2), (4) and (5) must point clockwise. see "Mounting the Deflector" Fit the appropriate limit stop . 30 FS 80, FS 80 R, FS 85, FS 85 R Cutting edges of (1) and (3) may point in either direction. tap it on the deflector trims overlong line to the correct length - about... 230-8 (2), or brush knife (3) - All other mowing heads Refer to the instructions supplied with the mowing head. English / USA STIHL AutoCut : Hold the rotating mowing head above the ground - Replacing Nylon Line or Cutting Blades Refer to the instructions supplied with the ...
Instruction Manual
Page 32
...mid-grade unleaded gasoline with a lower octane rating may increase engine temperatures. This could cause running problems or even damage the engine. FS 80, FS 80 R, FS 85, FS 85 R 31 Your engine requires a mixture of piston seizure and damage to operate on a vehicle. Some fuel additives not only ...high-quality unleaded gasoline! This, in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chainsaws, mopeds, etc.). We recommend STIHL 50:1 two-stroke engine oil since it is too loose, fit a new one. Do not use BIA or TCW rated (twostroke water...
...mid-grade unleaded gasoline with a lower octane rating may increase engine temperatures. This could cause running problems or even damage the engine. FS 80, FS 80 R, FS 85, FS 85 R 31 Your engine requires a mixture of piston seizure and damage to operate on a vehicle. Some fuel additives not only ...high-quality unleaded gasoline! This, in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chainsaws, mopeds, etc.). We recommend STIHL 50:1 two-stroke engine oil since it is too loose, fit a new one. Do not use BIA or TCW rated (twostroke water...
Instruction Manual
Page 33
... fuel. Before storing your machine. After fueling, tighten fuel cap as securely as to release slowly. When mixing, pour oil into the tank. 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 Dispose of storage. Always thoroughly shake the mixture in...sufficient fuel for a long period, drain and clean the fuel tank and run engine until carburetor is dry. 389BA031 KN 389BA032 KN 32 FS 80, FS 80 R, FS 85, FS 85 R Store in the tank to allow any pressure build-up body every year. Close the canister and shake it to exceed 3 months...
... fuel. Before storing your machine. After fueling, tighten fuel cap as securely as to release slowly. When mixing, pour oil into the tank. 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 Dispose of storage. Always thoroughly shake the mixture in...sufficient fuel for a long period, drain and clean the fuel tank and run engine until carburetor is dry. 389BA031 KN 389BA032 KN 32 FS 80, FS 80 R, FS 85, FS 85 R Store in the tank to allow any pressure build-up body every year. Close the canister and shake it to exceed 3 months...