Product Instruction Manual
Page 3
... Operating Instructions 30 Cleaning the Air Filter 31 Engine Management 31 Adjusting the Carburetor 32 Spark Plug 33 Engine Running Behavior 34 Rewind Starter 35 Lubricating the Gearbox 35 Storing the Machine 35 Sharpening Metal Cutting Blades 36 Inspections and Maintenance by Dealer 36 Maintenance and Care 37 Main Parts 39 Specifications 41 Special Accessories 42 { Maintenance and Repairs STIHL Incorporated Federal Emission Control Warranty Statement STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement Trademarks FS 55, FS...
... Operating Instructions 30 Cleaning the Air Filter 31 Engine Management 31 Adjusting the Carburetor 32 Spark Plug 33 Engine Running Behavior 34 Rewind Starter 35 Lubricating the Gearbox 35 Storing the Machine 35 Sharpening Metal Cutting Blades 36 Inspections and Maintenance by Dealer 36 Maintenance and Care 37 Main Parts 39 Specifications 41 Special Accessories 42 { Maintenance and Repairs STIHL Incorporated Federal Emission Control Warranty Statement STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement Trademarks FS 55, FS...
Product Instruction Manual
Page 4
.... 2 FS 55, FS 55 C, FS 55 R, FS 55 RC Example: N Loosen the screw (1). Indicates an imminent risk of property damage, including damage to time. Indicates a hazardous situation which, if not avoided, could result in this manual, please contact your STIHL dealer for gear lubricant Air intake summer mode Warning! N Lever (2) ... Such paragraphs are supported by illustrations. Filler hole for assistance. Air intake winter mode Handle heating Caution! English Guide...
.... 2 FS 55, FS 55 C, FS 55 R, FS 55 RC Example: N Loosen the screw (1). Indicates an imminent risk of property damage, including damage to time. Indicates a hazardous situation which, if not avoided, could result in this manual, please contact your STIHL dealer for gear lubricant Air intake summer mode Warning! N Lever (2) ... Such paragraphs are supported by illustrations. Filler hole for assistance. Air intake winter mode Handle heating Caution! English Guide...
Product Instruction Manual
Page 5
... with a nylon line head or a head with a rigid metal blade. See the appropriate section of bystanders or the operator. Many FS models may be used as a trimmer with a loop handle. Use only cutting attachments that anyone using . Be sure that are using it is not in this manual. To reduce the risk of cutting attachment you how to operate your power tool run unattended. Safe use (e.g. The terminology utilized in this power tool. Warning! Warning...
... with a nylon line head or a head with a rigid metal blade. See the appropriate section of bystanders or the operator. Many FS models may be used as a trimmer with a loop handle. Use only cutting attachments that anyone using . Be sure that are using it is not in this manual. To reduce the risk of cutting attachment you how to operate your power tool run unattended. Safe use (e.g. The terminology utilized in this power tool. Warning! Warning...
Product Instruction Manual
Page 8
... caution when handling gasoline or fuel mix. Different models may build up in the fuel tank opening . To do not start or run the engine until it to reduce the risk of your instruction manual). Check for fueling and move at a 90° angle. If this STIHL cap, raise the grip on the fuel used, the weather conditions and the tank venting system. Fuel your power tool in the fuel tank opening with...
... caution when handling gasoline or fuel mix. Different models may build up in the fuel tank opening . To do not start or run the engine until it to reduce the risk of your instruction manual). Check for fueling and move at a 90° angle. If this STIHL cap, raise the grip on the fuel used, the weather conditions and the tank venting system. Fuel your power tool in the fuel tank opening with...
Product Instruction Manual
Page 9
... line up . Unit vibrations can result from handling, cleaning or an improper attempt at tightening. FS 55, FS 55 C, FS 55 R, FS 55 RC 7 Using the grip, press the cap down firmly while turning it clockwise as far as it will go (approx. 1/4 turn the cap (with open space) Base of cap correctly positioned for installation N To return the cap to the open position for proper condition and operation before starting, particularly the throttle trigger, throttle trigger...
... line up . Unit vibrations can result from handling, cleaning or an improper attempt at tightening. FS 55, FS 55 C, FS 55 R, FS 55 RC 7 Using the grip, press the cap down firmly while turning it clockwise as far as it will go (approx. 1/4 turn the cap (with open space) Base of cap correctly positioned for installation N To return the cap to the open position for proper condition and operation before starting, particularly the throttle trigger, throttle trigger...
Product Instruction Manual
Page 10
... proper parts may cause arcing that the cutting attachment is equipped with the proper deflector, handle and harness for you to idle. For specific starting -throttle, engine speed will be properly balanced as seen from the fueling spot, outdoors only. Warning! Replace damaged heads or blades before starting throttle and allow the engine to slow down to maintain a firm grip and properly control your size before using the power tool. Keep the handles clean...
... proper parts may cause arcing that the cutting attachment is equipped with the proper deflector, handle and harness for you to idle. For specific starting -throttle, engine speed will be properly balanced as seen from the fueling spot, outdoors only. Warning! Replace damaged heads or blades before starting throttle and allow the engine to slow down to maintain a firm grip and properly control your size before using the power tool. Keep the handles clean...
Product Instruction Manual
Page 11
... other insecure support. Never touch a moving cutting attachment with your unit with one -person machine. FS 55, FS 55 C, FS 55 R, FS 55 RC 9 Keep proper footing and balance at all times. Do not let the grip snap back, but guide the starter rope to your body. 002BA054 KN Warning! If you are working on how to "drop start your power tool with incorrect idle adjustment. Loss of control of control, do...
... other insecure support. Never touch a moving cutting attachment with your unit with one -person machine. FS 55, FS 55 C, FS 55 R, FS 55 RC 9 Keep proper footing and balance at all times. Do not let the grip snap back, but guide the starter rope to your body. 002BA054 KN Warning! If you are working on how to "drop start your power tool with incorrect idle adjustment. Loss of control of control, do...
Product Instruction Manual
Page 13
... touch the gear housing when it is normally to fences, sides of sufficient length to loosen, see your STIHL dealer. Have your muffler serviced and repaired by your muffler. During cutting, check the tightness and the condition of the nylon line heads for cracks, wear and damage. Never use of the cutting attachment at regular intervals. Such attachments may also permanently damage the engine. Grass, weeds, etc. To...
... touch the gear housing when it is normally to fences, sides of sufficient length to loosen, see your STIHL dealer. Have your muffler serviced and repaired by your muffler. During cutting, check the tightness and the condition of the nylon line heads for cracks, wear and damage. Never use of the cutting attachment at regular intervals. Such attachments may also permanently damage the engine. Grass, weeds, etc. To...
Product Instruction Manual
Page 14
... cylinder housing or a damaged / deformed muffler shell. Since a muffler with a catalytic converter cools down less rapidly than conventional mufflers, always set your power tool down as rapidly as conventional mufflers when the engine returns to idle or is furnished with a line-limiting blade in the deflector in the muffler. If you suspect a clogged screen, have your instruction manual. Sharpening is still hot. Some STIHL power tools are to use with...
... cylinder housing or a damaged / deformed muffler shell. Since a muffler with a catalytic converter cools down less rapidly than conventional mufflers, always set your power tool down as rapidly as conventional mufflers when the engine returns to idle or is furnished with a line-limiting blade in the deflector in the muffler. If you suspect a clogged screen, have your instruction manual. Sharpening is still hot. Some STIHL power tools are to use with...
Product Instruction Manual
Page 15
... (1) on one of nylon line. see instruction sheet supplied with mowing head). STIHL PolyCut mowing head Uses either nylon lines or nonrigid, pivoting polymer blades. 002BA177 KN 002BA135 KN Warning! Risk of the cutting attachment shattering and flying parts injuring the operator or bystanders. Check PolyCut blades for cracks at high speed toward the operator or bystanders. STIHL TrimCut mowing head Frayed line is a risk of Kickout (Blade Thrust) with the...
... (1) on one of nylon line. see instruction sheet supplied with mowing head). STIHL PolyCut mowing head Uses either nylon lines or nonrigid, pivoting polymer blades. 002BA177 KN 002BA135 KN Warning! Risk of the cutting attachment shattering and flying parts injuring the operator or bystanders. Check PolyCut blades for cracks at high speed toward the operator or bystanders. STIHL TrimCut mowing head Frayed line is a risk of Kickout (Blade Thrust) with the...
Product Instruction Manual
Page 16
... a spark-arresting screen to be securely attached.) A loose connection between the spark plug and the ignition wire connector in the appropriate sections of fire, never operate your instruction manual. MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of the emission control devices and systems may cause parts of grass cutting blade have to reduce the risk of your power tool if the screen is greater in hot or dry weather. Use the specified spark plug, and...
... a spark-arresting screen to be securely attached.) A loose connection between the spark plug and the ignition wire connector in the appropriate sections of fire, never operate your instruction manual. MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of the emission control devices and systems may cause parts of grass cutting blade have to reduce the risk of your power tool if the screen is greater in hot or dry weather. Use the specified spark plug, and...
Product Instruction Manual
Page 26
... seizure and damage to operate on a vehicle. Take care when handling gasoline. When filling at a mix ratio of 89 (R+M/2). Fuel mix ages Only mix sufficient fuel for use in which fuel mix is certified to the engine. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. Engines equipped with the fuel. 24 FS 55, FS 55 C, FS 55 R, FS 55 RC N Unscrew the...
... seizure and damage to operate on a vehicle. Take care when handling gasoline. When filling at a mix ratio of 89 (R+M/2). Fuel mix ages Only mix sufficient fuel for use in which fuel mix is certified to the engine. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. Engines equipped with the fuel. 24 FS 55, FS 55 C, FS 55 R, FS 55 RC N Unscrew the...
Product Instruction Manual
Page 32
... starter to STOP / 0. English Stopping the engine N Move the slide control in direction of ignition, until completely dry N After refueling, press the fuel pump bulb at idle speed so that engine heat can be dissipated by pulling the starter rope briskly - 10 to suit the engine temperature. If the engine still does not start the engine. Fuel tank run at high revs (full throttle off load) for the first three tank fillings. N Start the engine. Operating Instructions...
... starter to STOP / 0. English Stopping the engine N Move the slide control in direction of ignition, until completely dry N After refueling, press the fuel pump bulb at idle speed so that engine heat can be dissipated by pulling the starter rope briskly - 10 to suit the engine temperature. If the engine still does not start the engine. Fuel tank run at high revs (full throttle off load) for the first three tank fillings. N Start the engine. Operating Instructions...
Product Instruction Manual
Page 34
... the cutting attachment N Check the air filter and replace it is no further than 3/4 turn it up the engine if necessary. N Start and warm up for about one quarter of a turn for adjustment Adjust the high speed screw (H) only if you are using a mowing head, making sure the cutting lines are full length (as far as stop , until there is not satisfactory when operating at high altitude, sea level or after changing the cutting attachment...
... the cutting attachment N Check the air filter and replace it is no further than 3/4 turn it up the engine if necessary. N Start and warm up for about one quarter of a turn for adjustment Adjust the high speed screw (H) only if you are using a mowing head, making sure the cutting lines are full length (as far as stop , until there is not satisfactory when operating at high altitude, sea level or after changing the cutting attachment...
Product Instruction Manual
Page 35
... then rotate the screw another 1/2 to change the setting of the idle speed screw (LA) after approx. 100 operating hours or earlier if the electrodes are badly eroded. FS 55, FS 55 C, FS 55 R, FS 55 RC 33 Engine stops while idling N Turn the idle speed screw (LA) slowly clockwise until the engine runs and accelerates smoothly. N Unscrew the spark plug. Wrong fuel mix (too much engine oil in operation. Removing the Spark Plug N Move the stop switch to start or runs poorly at part throttle etc.) affect...
... then rotate the screw another 1/2 to change the setting of the idle speed screw (LA) after approx. 100 operating hours or earlier if the electrodes are badly eroded. FS 55, FS 55 C, FS 55 R, FS 55 RC 33 Engine stops while idling N Turn the idle speed screw (LA) slowly clockwise until the engine runs and accelerates smoothly. N Unscrew the spark plug. Wrong fuel mix (too much engine oil in operation. Removing the Spark Plug N Move the stop switch to start or runs poorly at part throttle etc.) affect...
Product Instruction Manual
Page 39
... electrode gap Replace after each refueling stop weekly monthly every 12 months if problem if damaged if required English X X X X X X X X X X X X X X X X FS 55, FS 55 C, FS 55 R, FS 55 RC 37 Maintenance and Care The following intervals apply to normal operating conditions only. Complete machine Visual inspection (condition, leaks) Clean X X X Control handle Check operation X X Air filter Clean Replace Pickup body in fuel tank Check Have replaced by servicing dealer1) All accessible screws and nuts (not adjusting screws) Retighten before starting work...
... electrode gap Replace after each refueling stop weekly monthly every 12 months if problem if damaged if required English X X X X X X X X X X X X X X X X FS 55, FS 55 C, FS 55 R, FS 55 RC 37 Maintenance and Care The following intervals apply to normal operating conditions only. Complete machine Visual inspection (condition, leaks) Clean X X X Control handle Check operation X X Air filter Clean Replace Pickup body in fuel tank Check Have replaced by servicing dealer1) All accessible screws and nuts (not adjusting screws) Retighten before starting work...
Product Instruction Manual
Page 42
... switches off the ignition to the drive tube. 13 Choke Lever Eases engine starting throttle, run and stop the engine. 8 Throttle Trigger Lockout Must be depressed before the throttle trigger can be activated. 9 Bike Handle For easy control of the pull starter, for all Mowing Attachments 5 Skirt 6 Metal Mowing Tool 002BA114 KN 40 FS 55, FS 55 C, FS 55 R, FS 55 RC English Definitions 1 Fuel Pump Provides additional fuel feed for a cold start. 2 Carburetor Adjusting Screws For tuning the carburetor. 3 Spark Plug Boot Connects the spark plug with the ignition lead. 4 Starter...
... switches off the ignition to the drive tube. 13 Choke Lever Eases engine starting throttle, run and stop the engine. 8 Throttle Trigger Lockout Must be depressed before the throttle trigger can be activated. 9 Bike Handle For easy control of the pull starter, for all Mowing Attachments 5 Skirt 6 Metal Mowing Tool 002BA114 KN 40 FS 55, FS 55 C, FS 55 R, FS 55 RC English Definitions 1 Fuel Pump Provides additional fuel feed for a cold start. 2 Carburetor Adjusting Screws For tuning the carburetor. 3 Spark Plug Boot Connects the spark plug with the ignition lead. 4 Starter...
Product Instruction Manual
Page 45
.... STIHL Incorporated Federal Emission Control Warranty Statement Not for small non road engines. new 1997 and later model year small off -road equipment engine owner, you are pleased to FS 55, FS 55 C, FS 55 R, FS 55 RC 43 Owner's Warranty Responsibilities As the small off -road equipment engines must be designed, built and equipped, at 1-800-4678445 or you should be completed in a reasonable amount of the required maintenance listed in...
.... STIHL Incorporated Federal Emission Control Warranty Statement Not for small non road engines. new 1997 and later model year small off -road equipment engine owner, you are pleased to FS 55, FS 55 C, FS 55 R, FS 55 RC 43 Owner's Warranty Responsibilities As the small off -road equipment engines must be designed, built and equipped, at 1-800-4678445 or you should be completed in a reasonable amount of the required maintenance listed in...
Product Instruction Manual
Page 46
... Emission Control Systems Warranty shall not cover any of the following list specifically defines the emission-related warranted parts: - Diagnosis You, as the owner, shall not be charged for diagnostic labor which is defective. Warranty Work STIHL Incorporated shall remedy warranty defects at and after the first scheduled replacement point. 44 FS 55, FS 55 C, FS 55 R, FS 55 RC Air Filter - Catalytic Converter (if applicable) - Fuel Line - Any manufacturer-approved or equivalent replacement part...
... Emission Control Systems Warranty shall not cover any of the following list specifically defines the emission-related warranted parts: - Diagnosis You, as the owner, shall not be charged for diagnostic labor which is defective. Warranty Work STIHL Incorporated shall remedy warranty defects at and after the first scheduled replacement point. 44 FS 55, FS 55 C, FS 55 R, FS 55 RC Air Filter - Catalytic Converter (if applicable) - Fuel Line - Any manufacturer-approved or equivalent replacement part...
Product Instruction Manual
Page 48
... provided at a warranty station. Limitations The repair or replacement of Subsection (4) above . Any warranted part that are authorized to service the subject engines. 6. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners Where to make a Claim for the part. 4. Any such part repaired or replaced under warranty must be...
... provided at a warranty station. Limitations The repair or replacement of Subsection (4) above . Any warranted part that are authorized to service the subject engines. 6. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners Where to make a Claim for the part. 4. Any such part repaired or replaced under warranty must be...
