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
... saw may be strenuous. Different models may fling them directly or by strenuous work, check with your clearing saw is important that you have different parts and controls. the use of your clearing saw may cause serious or fatal injury. FS 300, FS 350, FS 400, FS 450, FS 480 3 Thrown objects or damaged blades may cause blades to operate your clearing saw without the owner's manual. Safe use a clearing saw . THE OPERATOR...
... saw may be strenuous. Different models may fling them directly or by strenuous work, check with your clearing saw is important that you have different parts and controls. the use of your clearing saw may cause serious or fatal injury. FS 300, FS 350, FS 400, FS 450, FS 480 3 Thrown objects or damaged blades may cause blades to operate your clearing saw without the owner's manual. Safe use a clearing saw . THE OPERATOR...
Instruction Manual
Page 7
... idle position. Gasoline is an extremely flammable fuel. When transporting your size before starting work. Fuel your clearing saw down. Always check your clearing saw in your owner's manual). !Warning! Fueling Instructions !Warning! Gasoline vapor pressure may build up inside the fuel tank depending on "Fuel" of your owner's manual for proper condition and operation before starting , particularly the throttle trigger, throttle trigger interlock (if applicable), stopswitch, cutting tool, deflector and harness. Keep metal cutting tools covered with the transport guard...
... idle position. Gasoline is an extremely flammable fuel. When transporting your size before starting work. Fuel your clearing saw down. Always check your clearing saw in your owner's manual). !Warning! Fueling Instructions !Warning! Gasoline vapor pressure may build up inside the fuel tank depending on "Fuel" of your owner's manual for proper condition and operation before starting , particularly the throttle trigger, throttle trigger interlock (if applicable), stopswitch, cutting tool, deflector and harness. Keep metal cutting tools covered with the transport guard...
Instruction Manual
Page 8
... the cap in the fuel tank opening lining up in the filler neck, the cap is fixed and spilled fuel has been wiped away. Using the grip, turn ). a quarter turn the cap firmly clockwise as far as it is found, do this happens, change your clearing saw and check for the type of cutting attachment being used (see chart in chapters on Approved Combinations of Cutting Tool, Deflector, Handle and...
... the cap in the fuel tank opening lining up in the filler neck, the cap is fixed and spilled fuel has been wiped away. Using the grip, turn ). a quarter turn the cap firmly clockwise as far as it is found, do this happens, change your clearing saw and check for the type of cutting attachment being used (see chart in chapters on Approved Combinations of Cutting Tool, Deflector, Handle and...
Instruction Manual
Page 9
... loss of control, be observed. !Warning! When you are equipped with a catalytic converter cools down less rapidly than conventional mufflers, always set your clearing saw models are approached. Start and operate your clearing saw is still hot. 8 FS 300, FS 350, FS 400, FS 450, FS 480 Some STIHL clearing saw down as rapidly as conventional mufflers when the engine returns to engage and turn the cutting tool. !Warning! Since a muffler with...
... loss of control, be observed. !Warning! When you are equipped with a catalytic converter cools down less rapidly than conventional mufflers, always set your clearing saw models are approached. Start and operate your clearing saw is still hot. 8 FS 300, FS 350, FS 400, FS 450, FS 480 Some STIHL clearing saw down as rapidly as conventional mufflers when the engine returns to engage and turn the cutting tool. !Warning! Since a muffler with...
Instruction Manual
Page 12
... should be cleaned off the clearing saw to kick out or could throw objects of a clearing saw may be alert to fences, sides of the engine speed. If the blade continues to secure the blade. When using the starting throttle lock as a hedge trimmer. See section of the tool changes, stop work immediately. If the behavior of your owner's manual on the proper use unauthorized parts to loosen...
... should be cleaned off the clearing saw to kick out or could throw objects of a clearing saw may be alert to fences, sides of the engine speed. If the blade continues to secure the blade. When using the starting throttle lock as a hedge trimmer. See section of the tool changes, stop work immediately. If the behavior of your owner's manual on the proper use unauthorized parts to loosen...
Instruction Manual
Page 13
... idle adjustment. Use of non-STIHL parts may be attached.) A loose connection between spark plug boot and ignition wire connector in the boot may cause parts of the cutting tool to the maintenance chart on blade. !Warning! Please refer to come off and result in your STIHL service shop only. Wear gloves when handling or doing any nonroad engine repair establishment or individual. Important adjustments !Warning! MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of this manual...
... idle adjustment. Use of non-STIHL parts may be attached.) A loose connection between spark plug boot and ignition wire connector in the boot may cause parts of the cutting tool to the maintenance chart on blade. !Warning! Please refer to come off and result in your STIHL service shop only. Wear gloves when handling or doing any nonroad engine repair establishment or individual. Important adjustments !Warning! MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of this manual...
Instruction Manual
Page 14
... heads Do not use . With a properly mounted guard, the built-in damage to reduce the risk of forest fires is missing or damaged. For any part of this manual. Do not operate your clearing saw in your muffler was equipped with a spark-arresting screen to the clutch mechanism and nearby parts. 002BA018 LÄ FS 300, FS 350, FS 400, FS 450, FS 480 13 Overly long lines can overload the engine...
... heads Do not use . With a properly mounted guard, the built-in damage to reduce the risk of forest fires is missing or damaged. For any part of this manual. Do not operate your clearing saw in your muffler was equipped with a spark-arresting screen to the clutch mechanism and nearby parts. 002BA018 LÄ FS 300, FS 350, FS 400, FS 450, FS 480 13 Overly long lines can overload the engine...
Instruction Manual
Page 15
... head Frayed line is replaced by a fence etc., it has worn as far as one of the lawn. If the lawn edges are to be used only on brushcutters equipped with the head! 000BA015 KN 002BA177 KN 14 FS 300, FS 350, FS 400, FS 450, FS 480 English / USA A damaged clutch may cause a cutting attachment to rotate at high speed toward the operator or bystanders. Pieces of wire could...
... head Frayed line is replaced by a fence etc., it has worn as far as one of the lawn. If the lawn edges are to be used only on brushcutters equipped with the head! 000BA015 KN 002BA177 KN 14 FS 300, FS 350, FS 400, FS 450, FS 480 English / USA A damaged clutch may cause a cutting attachment to rotate at high speed toward the operator or bystanders. Pieces of wire could...
Instruction Manual
Page 25
... slide control to the correct length. Rotating the spool from one . 256BA010 KN Adjusting Nylon Line Note: A detailed description is too loose, fit a new one stop to spring back. : Pull ends of fresh line. 24 FS 300, FS 350, FS 400, FS 450, FS 480 Remove the stop pin. : Position the mowing head on the nut (4) counter- rotate it about 1.6 in the instruction sheet supplied with the mowing head. Line feed operates only...
... slide control to the correct length. Rotating the spool from one . 256BA010 KN Adjusting Nylon Line Note: A detailed description is too loose, fit a new one stop to spring back. : Pull ends of fresh line. 24 FS 300, FS 350, FS 400, FS 450, FS 480 Remove the stop pin. : Position the mowing head on the nut (4) counter- rotate it about 1.6 in the instruction sheet supplied with the mowing head. Line feed operates only...
Instruction Manual
Page 27
... to operate on unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of the mid-grade gasoline in or on the ground before filling. When filling at authorized disposal locations. 26 FS 300, FS 350, FS 400, FS 450, FS 480 Your engine requires a mixture of 89 (R+M/2). If the octane rating of 50:1. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc...
... to operate on unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of the mid-grade gasoline in or on the ground before filling. When filling at authorized disposal locations. 26 FS 300, FS 350, FS 400, FS 450, FS 480 Your engine requires a mixture of 89 (R+M/2). If the octane rating of 50:1. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc...
Instruction Manual
Page 30
... again and continue cranking. guide it engage - FS 400, 450: Change over to 20 pulls may be necessary. FS 300, FS 350, FS 400, FS 450, FS 480 29 If the engine does not start ) quickly enough after the engine began to fire, the combustion chamber has 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 winter operation if necessary - English / USA...
... again and continue cranking. guide it engage - FS 400, 450: Change over to 20 pulls may be necessary. FS 300, FS 350, FS 400, FS 450, FS 480 29 If the engine does not start ) quickly enough after the engine began to fire, the combustion chamber has 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 winter operation if necessary - English / USA...
Instruction Manual
Page 31
... least five times - English / USA Operating Instructions 5 If the engine still does not start the engine. 271BA019 KN Throttle cable : Check adjustment of nuts and screws (not adjusting screws) at high revs (full throttle off the spark plug. : Open the throttle wide. : Crank the engine several times with fuel. see "Adjusting the Throttle Cable". During break-in the engine can be run at regular intervals and retighten as necessary. 30 FS 300, FS 350, FS 400, FS 450, FS 480 Connect the spark plug boot...
... least five times - English / USA Operating Instructions 5 If the engine still does not start the engine. 271BA019 KN Throttle cable : Check adjustment of nuts and screws (not adjusting screws) at high revs (full throttle off the spark plug. : Open the throttle wide. : Crank the engine several times with fuel. see "Adjusting the Throttle Cable". During break-in the engine can be run at regular intervals and retighten as necessary. 30 FS 300, FS 350, FS 400, FS 450, FS 480 Connect the spark plug boot...
Instruction Manual
Page 36
... - operating at idling speed, first check the spark plug. : Remove spark plug - STIHL recommends that could ignite combustible fumes and cause a fire. FS 300, FS 350, FS 400, FS 450, FS 480 35 Have your STIHL dealer inspect the muffler for carbonization. Always press spark plug boot (2) snugly onto spark plug terminal (1) of the proper size. (Note: If terminal has detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in fuel mix. : Dirty air filter...
... - operating at idling speed, first check the spark plug. : Remove spark plug - STIHL recommends that could ignite combustible fumes and cause a fire. FS 300, FS 350, FS 400, FS 450, FS 480 35 Have your STIHL dealer inspect the muffler for carbonization. Always press spark plug boot (2) snugly onto spark plug terminal (1) of the proper size. (Note: If terminal has detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in fuel mix. : Dirty air filter...
Instruction Manual
Page 37
... 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 and tighten it down firmly. take care to Using this Manual"). : Check grease level about every...
... 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 and tighten it down firmly. take care to Using this Manual"). : Check grease level about every...
Instruction Manual
Page 39
... environmental requirements. : Run engine until carburetor is correctly seated. : Use a suitable tool to the cylinder fins and air filter. : Store the machine in "Replacing the Starter Rope". : Tension the rewind spring. : Fit the fan housing. English / USA Storing the Machine 8 : Place spring with spring housing - start outside and work inward. : Fit the screw. : Install the rope rotor as described in a dry, high or locked location - The frame slips off in position - out of...
... environmental requirements. : Run engine until carburetor is correctly seated. : Use a suitable tool to the cylinder fins and air filter. : Store the machine in "Replacing the Starter Rope". : Tension the rewind spring. : Fit the fan housing. English / USA Storing the Machine 8 : Place spring with spring housing - start outside and work inward. : Fit the screw. : Install the rope rotor as described in a dry, high or locked location - The frame slips off in position - out of...
Instruction Manual
Page 41
... Clean Replace Check Replace Clean Check idle adjustment X X Readjust idle Readjust electrode gap Replace after each refueling stop weekly monthly every 12 months if problem if damaged as required English / USA Maintenance Chart Please note that this work area etc.), shorten the specified intervals accordingly. 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...
... Clean Replace Check Replace Clean Check idle adjustment X X Readjust idle Readjust electrode gap Replace after each refueling stop weekly monthly every 12 months if problem if damaged as required English / USA Maintenance Chart Please note that this work area etc.), shorten the specified intervals accordingly. 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...
Instruction Manual
Page 44
... the engine. 4. Cutting Tool The cutting attachment for a cold start the engine. 16. English / USA Definitions 1. Fuel Pump Provides additional fuel feed for different purposes. 20. Spark Plug Boot Connects the spark plug to the harness. 8. Muffler Reduces exhaust noises and diverts exhaust gases away from contact with both hands during cutting work. 2. FS 300, FS 350, FS 400, FS 450, FS 480 43 Fuel Tank For fuel and oil mixture. 12. Carburetor Adjusting Screws For tuning the carburetor. 17. Guard plate...
... the engine. 4. Cutting Tool The cutting attachment for a cold start the engine. 16. English / USA Definitions 1. Fuel Pump Provides additional fuel feed for different purposes. 20. Spark Plug Boot Connects the spark plug to the harness. 8. Muffler Reduces exhaust noises and diverts exhaust gases away from contact with both hands during cutting work. 2. FS 300, FS 350, FS 400, FS 450, FS 480 43 Fuel Tank For fuel and oil mixture. 12. Carburetor Adjusting Screws For tuning the carburetor. 17. Guard plate...
Instruction Manual
Page 47
... for the period of time listed below provided there has been no cost to meet all scheduled maintenance. STIHL Incorporated also warrants to the initial purchaser and each subsequent purchaser that your equipment type engine. Your emission control system includes parts such as a problem exists. Box 2015, Virginia Beach, VA 23450-2015. new 1997 and later model year small off-road...
... for the period of time listed below provided there has been no cost to meet all scheduled maintenance. STIHL Incorporated also warrants to the initial purchaser and each subsequent purchaser that your equipment type engine. Your emission control system includes parts such as a problem exists. Box 2015, Virginia Beach, VA 23450-2015. new 1997 and later model year small off-road...
Instruction Manual
Page 48
... list specifically defines the emission-related warranted parts: Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or electronic ignition system (ignition module) Catalytic converter (if applicable) Fasteners Where to make a claim for Warranty Service Bring the product to any warranty maintenance or repairs on the application of charge to the first scheduled replacement point for damages to the owner. Any manufacturer-approved or equivalent replacement part...
... list specifically defines the emission-related warranted parts: Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or electronic ignition system (ignition module) Catalytic converter (if applicable) Fasteners Where to make a claim for Warranty Service Bring the product to any warranty maintenance or repairs on the application of charge to the first scheduled replacement point for damages to the owner. Any manufacturer-approved or equivalent replacement part...