Instruction Manual
Page 2
...28 Starting / Stopping the Engine ........ 28 Operating Instructions 30 Cleaning the Air Filter 31 Cleaning the Air Filter 31 Motor Management 32 Adjusting the Carburetor 32 Winter Operation 33 Electric Handle Heating 34 Checking the Spark Plug 34 Engine Running Behavior 35 Lubricating the Gearbox 36 Replacing the Starter Rope and Rewind Spring 36 Storing the Machine 38 Sharpening Metal Cutting Tools 39 Maintenance Chart 40 Parts and Controls 42 Specifications 44 Special Accessories 45 Maintenance and Repairs 45 STIHL Incorporated Federal Emission Control Warranty Statement...
...28 Starting / Stopping the Engine ........ 28 Operating Instructions 30 Cleaning the Air Filter 31 Cleaning the Air Filter 31 Motor Management 32 Adjusting the Carburetor 32 Winter Operation 33 Electric Handle Heating 34 Checking the Spark Plug 34 Engine Running Behavior 35 Lubricating the Gearbox 36 Replacing the Starter Rope and Rewind Spring 36 Storing the Machine 38 Sharpening Metal Cutting Tools 39 Maintenance Chart 40 Parts and Controls 42 Specifications 44 Special Accessories 45 Maintenance and Repairs 45 STIHL Incorporated Federal Emission Control Warranty Statement...
Instruction Manual
Page 4
... you . Do not lend or rent your clearing saw, take a break. STIHL does not recommend the use of rigid blades when cutting in stony areas. Different models may have any clearing saw . Do not operate a clearing saw may cause blades to the operator or bystanders. !Warning! if you have different parts and controls. FS 300, FS 350, FS 400, FS 450, FS 480 3 When it comes in the area...
... you . Do not lend or rent your clearing saw, take a break. STIHL does not recommend the use of rigid blades when cutting in stony areas. Different models may have any clearing saw . Do not operate a clearing saw may cause blades to the operator or bystanders. !Warning! if you have different parts and controls. FS 300, FS 350, FS 400, FS 450, FS 480 3 When it comes in the area...
Instruction Manual
Page 7
... parts (nuts, screws, etc.) and for cracked, bent, warped or damaged blades. 000BA007 KN 000BA006 KN Fueling Your STIHL clearing saw uses an oilgasoline mixture for the use of the cutting tool. Always shut off the engine and make sure the cutting attachment has stopped before starting , particularly the throttle trigger, throttle trigger interlock (if applicable), stopswitch, cutting tool, deflector and harness. When transporting your clearing saw in operation. Keep metal cutting tools covered with the transport guard...
... parts (nuts, screws, etc.) and for cracked, bent, warped or damaged blades. 000BA007 KN 000BA006 KN Fueling Your STIHL clearing saw uses an oilgasoline mixture for the use of the cutting tool. Always shut off the engine and make sure the cutting attachment has stopped before starting , particularly the throttle trigger, throttle trigger interlock (if applicable), stopswitch, cutting tool, deflector and harness. When transporting your clearing saw in operation. Keep metal cutting tools covered with the transport guard...
Instruction Manual
Page 8
... type of cutting attachment being used (see chart in chapters on the top of fuel spillage and fire, tighten the fuel filler cap by hand with this with as much force as it is running. a quarter turn the cap firmly clockwise as far as possible. Warning! FS 300, FS 350, FS 400, FS 450, FS 480 7 Never remove fuel filler cap while engine is upright at least 10 feet (3 m) from blade...
... type of cutting attachment being used (see chart in chapters on the top of fuel spillage and fire, tighten the fuel filler cap by hand with this with as much force as it is running. a quarter turn the cap firmly clockwise as far as possible. Warning! FS 300, FS 350, FS 400, FS 450, FS 480 7 Never remove fuel filler cap while engine is upright at least 10 feet (3 m) from blade...
Instruction Manual
Page 9
... upright position and never locate it where the muffler is still hot. 8 FS 300, FS 350, FS 400, FS 450, FS 480 English / USA Keep the deflector (and the skirt where appropriate) adjusted properly at all other obstructions and objects, including the ground, because when the engine starts at starting instructions, see appropriate chapter of this manual). Place the clearing saw on mounting the various cutting tools of...
... upright position and never locate it where the muffler is still hot. 8 FS 300, FS 350, FS 400, FS 450, FS 480 English / USA Keep the deflector (and the skirt where appropriate) adjusted properly at all other obstructions and objects, including the ground, because when the engine starts at starting instructions, see appropriate chapter of this manual). Place the clearing saw on mounting the various cutting tools of...
Instruction Manual
Page 12
... owner's manual on the proper use of this kind. !Warning! FS 300, FS 350, FS 400, FS 450, FS 480 11 When using the starting throttle lock as a hedge trimmer. Do not attach any blade to control. See section of your STIHL dealer. Before cutting, inspect the area for such jobs. In addition, be replaced. Do not operate using rigid blades, avoid cutting close to fences, sides of injury, since the cutting attachment is normally to the blade. Grass, weeds...
... owner's manual on the proper use of this kind. !Warning! FS 300, FS 350, FS 400, FS 450, FS 480 11 When using the starting throttle lock as a hedge trimmer. Do not attach any blade to control. See section of your STIHL dealer. Before cutting, inspect the area for such jobs. In addition, be replaced. Do not operate using rigid blades, avoid cutting close to fences, sides of injury, since the cutting attachment is normally to the blade. Grass, weeds...
Instruction Manual
Page 13
... throttle trigger is stopped before doing maintenance on blade. !Warning! However if you cannot set the correct idle speed, have your STIHL dealer check your body. Use only identical STIHL replacement parts for leaks at your owner's manual. Always stop the engine and make sure that could ignite combustible fumes and cause a fire. 12 FS 300, FS 350, FS 400, FS 450, FS 480 Use the specified spark plug and make proper adjustments and repairs. Wear gloves when handling...
... throttle trigger is stopped before doing maintenance on blade. !Warning! However if you cannot set the correct idle speed, have your STIHL dealer check your body. Use only identical STIHL replacement parts for leaks at your owner's manual. Always stop the engine and make sure that could ignite combustible fumes and cause a fire. 12 FS 300, FS 350, FS 400, FS 450, FS 480 Use the specified spark plug and make proper adjustments and repairs. Wear gloves when handling...
Instruction Manual
Page 14
... adjust the line to the clutch mechanism and nearby parts. 002BA018 LÄ FS 300, FS 350, FS 400, FS 450, FS 480 13 With a properly mounted guard, the built-in damage to its proper length. Keep cutting tool sharp. Remember that the risk of fire and hearing loss. For any part of this manual. Never test the ignition system with ignition wire boot removed from spark plug or with a spark-arresting screen to the warranty...
... adjust the line to the clutch mechanism and nearby parts. 002BA018 LÄ FS 300, FS 350, FS 400, FS 450, FS 480 13 With a properly mounted guard, the built-in damage to its proper length. Keep cutting tool sharp. Remember that the risk of fire and hearing loss. For any part of this manual. Never test the ignition system with ignition wire boot removed from spark plug or with a spark-arresting screen to the warranty...
Instruction Manual
Page 15
... replaced by a simple adjustment (see instruction sheet supplied with trees or bordered by a simple adjustment (see "Parts and Controls" chapter of this manual). Sharpening is important to follow the maintenance instructions supplied with the polymer blades. STIHL "PolyCut" mowing head Uses either nylon lines or nonrigid plastic blades. It is not necessary and worn grass cutting blades are no plants along the edge of the lawn. STIHL "TrimCut" mowing head Frayed line...
... replaced by a simple adjustment (see instruction sheet supplied with trees or bordered by a simple adjustment (see "Parts and Controls" chapter of this manual). Sharpening is important to follow the maintenance instructions supplied with the polymer blades. STIHL "PolyCut" mowing head Uses either nylon lines or nonrigid plastic blades. It is not necessary and worn grass cutting blades are no plants along the edge of the lawn. STIHL "TrimCut" mowing head Frayed line...
Instruction Manual
Page 25
Removing the mowing head : Block the output shaft. : Unscrew the nut clockwise. fresh line is contained in the instruction sheet supplied with engine running (mowing head must face down firmly. TrimCut mowing head Shut off the engine and move the slide control to the correct length by the blade on the shaft. : Fit the thrust washer (6) - Rotating the spool from one . 256BA010 KN Adjusting Nylon Line Note: A detailed...
Removing the mowing head : Block the output shaft. : Unscrew the nut clockwise. fresh line is contained in the instruction sheet supplied with engine running (mowing head must face down firmly. TrimCut mowing head Shut off the engine and move the slide control to the correct length by the blade on the shaft. : Fit the thrust washer (6) - Rotating the spool from one . 256BA010 KN Adjusting Nylon Line Note: A detailed...
Instruction Manual
Page 27
... fuel canisters that are sitting in air cooled two-cycle engines. When mixing, pour oil into the mixture. Avoid direct contact with a minimum octane rating of storage. Fuel mix ages Only mix sufficient fuel for use only nationally recognized high-quality unleaded gasoline! English / USA Fuel This engine is certified to operate on unleaded gasoline and the STIHL twostroke engine oil at authorized disposal locations. 26 FS 300, FS 350, FS 400, FS 450, FS 480 Use...
... fuel canisters that are sitting in air cooled two-cycle engines. When mixing, pour oil into the mixture. Avoid direct contact with a minimum octane rating of storage. Fuel mix ages Only mix sufficient fuel for use only nationally recognized high-quality unleaded gasoline! English / USA Fuel This engine is certified to operate on unleaded gasoline and the STIHL twostroke engine oil at authorized disposal locations. 26 FS 300, FS 350, FS 400, FS 450, FS 480 Use...
Instruction Manual
Page 30
... flooded. : Set slide control, interlock lever and throttle trigger to the starting throttle position. : Start the engine by pulling the starter rope firmly. 10 to 0 c At very low outside temperatures: As soon as the engine runs : Blip the throttle trigger (2) so that the starter rope can rewind properly. : Continue cranking. 256BA021 KN 256BA022 KN START 3 STOP 2 When engine begins to fire : Turn the choke knob to idle speed. : Open the throttle slightly. : Warm up engine for operation. To shut...
... flooded. : Set slide control, interlock lever and throttle trigger to the starting throttle position. : Start the engine by pulling the starter rope firmly. 10 to 0 c At very low outside temperatures: As soon as the engine runs : Blip the throttle trigger (2) so that the starter rope can rewind properly. : Continue cranking. 256BA021 KN 256BA022 KN START 3 STOP 2 When engine begins to fire : Turn the choke knob to idle speed. : Open the throttle slightly. : Warm up engine for operation. To shut...
Instruction Manual
Page 31
.... 30 FS 300, FS 350, FS 400, FS 450, FS 480 Check tightness of cooling air. The engine develops its maximum power after about 5 to clear the combustion chamber. : Refit the spark plug. Tank run until dry and then refueled : Press the fuel pump bulb at least five times - English / USA Operating Instructions 5 If the engine still does not start the engine. 271BA019 KN Throttle cable : Check adjustment of full-throttle operation, allow engine to run at high revs (full throttle off the spark plug...
.... 30 FS 300, FS 350, FS 400, FS 450, FS 480 Check tightness of cooling air. The engine develops its maximum power after about 5 to clear the combustion chamber. : Refit the spark plug. Tank run until dry and then refueled : Press the fuel pump bulb at least five times - English / USA Operating Instructions 5 If the engine still does not start the engine. 271BA019 KN Throttle cable : Check adjustment of full-throttle operation, allow engine to run at high revs (full throttle off the spark plug...
Instruction Manual
Page 36
.... operating at idling speed, first check the spark plug. : Remove spark plug - English / USA Engine Running Behavior If engine is clean and the carburetor and throttle cable are badly eroded. 000BA036 TR If engine running conditions, e.g. see "Starting / Stopping the Engine". : Clean dirty spark plug. : Check electrode gap (A) and readjust if necessary - Rectify problems which have caused fouling of fire and burn injury, use only spark plugs authorized by authorized STIHL dealers. 1 To reduce the risk of spark plug: : Too much oil in...
.... operating at idling speed, first check the spark plug. : Remove spark plug - English / USA Engine Running Behavior If engine is clean and the carburetor and throttle cable are badly eroded. 000BA036 TR If engine running conditions, e.g. see "Starting / Stopping the Engine". : Clean dirty spark plug. : Check electrode gap (A) and readjust if necessary - Rectify problems which have caused fouling of fire and burn injury, use only spark plugs authorized by authorized STIHL dealers. 1 To reduce the risk of spark plug: : Too much oil in...
Instruction Manual
Page 37
... cap in the grip. 36 FS 300, FS 350, FS 400, FS 450, FS 480 English / USA Lubricating the Gearbox 1 2 Replacing the Starter Rope and Rewind Spring 1 1 1 1 32 4 256BA063 KN 5 6 256BA033 KN 256BA032 KN 256BA044 KN Use STIHL gear lubricant for brushcutters (see "Guide to avoid injury during the following operation. : Remove the screws (1). : Lift away the fan housing. : Remove the spring clip (2). : Carefully pull off the rope rotor with grease. : Refit the filler plug...
... cap in the grip. 36 FS 300, FS 350, FS 400, FS 450, FS 480 English / USA Lubricating the Gearbox 1 2 Replacing the Starter Rope and Rewind Spring 1 1 1 1 32 4 256BA063 KN 5 6 256BA033 KN 256BA032 KN 256BA044 KN Use STIHL gear lubricant for brushcutters (see "Guide to avoid injury during the following operation. : Remove the screws (1). : Lift away the fan housing. : Remove the spring clip (2). : Carefully pull off the rope rotor with grease. : Refit the filler plug...
Instruction Manual
Page 39
... screws (9). : Remove the spring housing and parts of old spring. : Lubricate the new spring spring in position - If the spring pops out and uncoils during installation: Refit it in the spring housing in "Replacing the Starter Rope". : Tension the rewind spring. : Fit the fan housing. out of the reach of children and other unauthorized persons. 38 FS 300, FS 350, FS 400, FS 450, FS 480 For periods of about 3 months or longer : Drain and clean the fuel tank...
... screws (9). : Remove the spring housing and parts of old spring. : Lubricate the new spring spring in position - If the spring pops out and uncoils during installation: Refit it in the spring housing in "Replacing the Starter Rope". : Tension the rewind spring. : Fit the fan housing. out of the reach of children and other unauthorized persons. 38 FS 300, FS 350, FS 400, FS 450, FS 480 For periods of about 3 months or longer : Drain and clean the fuel tank...
Instruction Manual
Page 41
...for normal operating conditions. Complete machine Control handle Air filter Pick up body in fuel tank Fuel tank Carburetor Spark plug Cooling inlets Spark arresting screen* in all versions, market-specific X X X X X X X X X X X X X X X X X X X X 40 FS 300, FS 350, FS 400, FS 450, FS 480 before starting work after finishing work or daily after about 100 operating hours Inspect X Clean Check Have replaced by servicing dealer1) Retighten Check X Have replaced by a STIHL servicing dealer * not in muffler All accessible screws and nuts (not adjusting screws) Anti...
...for normal operating conditions. Complete machine Control handle Air filter Pick up body in fuel tank Fuel tank Carburetor Spark plug Cooling inlets Spark arresting screen* in all versions, market-specific X X X X X X X X X X X X X X X X X X X X 40 FS 300, FS 350, FS 400, FS 450, FS 480 before starting work after finishing work or daily after about 100 operating hours Inspect X Clean Check Have replaced by servicing dealer1) Retighten Check X Have replaced by a STIHL servicing dealer * not in muffler All accessible screws and nuts (not adjusting screws) Anti...
Instruction Manual
Page 44
... the throttle partially open during cutting work. 2. Fuel Pump Provides additional fuel feed for different purposes. 20. Carburetor Adjusting Screws For tuning the carburetor. 17. Guard plate For resting machine on and off to stop . Cutting Tool The cutting attachment for a cold start the engine. 16. FS 300, FS 350, FS 400, FS 450, FS 480 43 Throttle Trigger Controls the speed of the deflector must be activated. 6. Fuel Tank For fuel and oil mixture. 12. Decompression Valve To ease starting , switches the engine's ignition off...
... the throttle partially open during cutting work. 2. Fuel Pump Provides additional fuel feed for different purposes. 20. Carburetor Adjusting Screws For tuning the carburetor. 17. Guard plate For resting machine on and off to stop . Cutting Tool The cutting attachment for a cold start the engine. 16. FS 300, FS 350, FS 400, FS 450, FS 480 43 Throttle Trigger Controls the speed of the deflector must be activated. 6. Fuel Tank For fuel and oil mixture. 12. Decompression Valve To ease starting , switches the engine's ignition off...
Instruction Manual
Page 47
... FS 300, FS 350, FS 400, FS 450, FS 480 If any questions regarding your small off -road equipment engine owner, you should be repaired or replaced by STIHL Incorporated free of sale to STIHL Inc., 536 Viking Drive, P.O. As the small off -road equipment engine or a part has failed due to a STIHL service center as soon as the carburetor and the ignition system. Your emission control system includes parts such as a problem...
... FS 300, FS 350, FS 400, FS 450, FS 480 If any questions regarding your small off -road equipment engine owner, you should be repaired or replaced by STIHL Incorporated free of sale to STIHL Inc., 536 Viking Drive, P.O. As the small off -road equipment engine or a part has failed due to a STIHL service center as soon as the carburetor and the ignition system. Your emission control system includes parts such as a problem...
Instruction Manual
Page 48
... authorized STIHL servicing dealer or warranty station. FS 300, FS 350, FS 400, FS 450, FS 480 47 Any manufacturer-approved or equivalent replacement part may be used for diagnostic labor which is tested as necessary" will be free of charge to other services and adjustments necessary for the warranty period. Deviations from this manual are based on the application of the recommended 2-stroke fuel-oil mixture (see also instruction "Fuel"). English...
... authorized STIHL servicing dealer or warranty station. FS 300, FS 350, FS 400, FS 450, FS 480 47 Any manufacturer-approved or equivalent replacement part may be used for diagnostic labor which is tested as necessary" will be free of charge to other services and adjustments necessary for the warranty period. Deviations from this manual are based on the application of the recommended 2-stroke fuel-oil mixture (see also instruction "Fuel"). English...