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STIHL FS 400, 450

Instruction Manual

Summary of Contents for FS 400

Page 1: ...STIHL FS 400 450 Instruction Manual...

Page 2: ......

Page 3: ...any queries concerning this product Your Dr Nikolas Stihl Guide to Using this Manual 2 Safety Precautions and Working Techniques 2 Approved Combinations of Cutting Attachment Deflector Limit Stop and...

Page 4: ...w you how to operate your machine or attend a special course in its operation Minors should never be allowed to use a power tool Keep bystanders especially children and animals away from the work area...

Page 5: ...se of genuine STIHL tools and accessories They are specifically designed to match the product and meet your performance requirements Never attempt to modify your power tool in any way since this may i...

Page 6: ...he engine until leak is fixed Before Starting Check that your power tool is properly assembled and in good condition refer to appropriate chapters in the instruction manual Check the fuel system for l...

Page 7: ...ngine starts Your power tool is a one person unit To reduce the risk of injury from thrown objects do not allow other persons within a radius of 15 meters of your own position even when starting Check...

Page 8: ...educe the risk of accidents stop work immediately in the event of nausea headache visual disturbances e g reduced field of vision problems with hearing dizziness deterioration in ability to concentrat...

Page 9: ...cally designed to match your model and meet your performance requirements Metal cutting attachments rotate at very high speed The forces that occur act on the machine the attachment and the material b...

Page 10: ...out exclusively by an authorized STIHL servicing dealer STIHL dealers are regularly given the opportunity to attend training courses and are supplied with the necessary technical information Only use...

Page 11: ...mowing head with nylon line as described in the instruction leaflet WARNING To reduce the risk of serious injury never use wire or metal reinforced line in place of the nylon line STIHL DuroCut Check...

Page 12: ...sk of kickout is greatest when the black area of the rotating cutting attachment comes into contact with a solid object Grass Cutting Blade Use for grass and weeds only sweep the brushcutter in an arc...

Page 13: ...er Blade Suitable for thinning and shredding tough matted grass and scrub To cut wild growth and scrub lower the shredder blade down onto the growth to achieve a shredding effect always keep the cutti...

Page 14: ...g maintain a distance of at least two tree lengths from the next felling site Risk of kickout The risk of kickout is highest in the black area of the blade Do not use this area of the circular saw bla...

Page 15: ...h 13 Approved Combinations of Cutting Attachment Deflector Limit Stop and Harness Cutting Attachment Deflector Limit Stop Harness 21 0000 GXX 0375 A0 9 11 8 13 14 15 9 19 22 23 24 12 16 17 18 20 25 26...

Page 16: ...ezial 250 mm dia 11 Brush knife 305 2 Spezial 305 mm dia 12 Brush knife 300 3 300 mm dia 13 Shredder blade 270 2 270 mm dia 14 Scratcher tooth circular saw blade 200 200 mm dia 15 Chisel tooth circula...

Page 17: ...handlebar at a right angle to the drive tube N Tighten down the clamping screw firmly N Take out the screw 5 the nut 6 remains in the control handle 7 N Push the control handle onto the end of the han...

Page 18: ...ttle this sets the throttle cable correctly Use the Right Deflector WARNING Deflector 1 is approved for mowing heads only and must therefore be mounted before fitting a mowing head WARNING Deflector 2...

Page 19: ...the gearbox 6 N Insert the screws 7 and tighten them down firmly Fitting the Skirt When using mowing heads The deflector for metal mowing attachments 1 must be equipped with the skirt 2 when you use m...

Page 20: ...to loosen and remove the nut 2 clockwise N Remove the rider plate 3 and thrust washer 4 where fitted Checking the Thrust Plate The thrust plate is necessary for mounting all cutting attachments to th...

Page 21: ...e grass shield and the cutting attachment mounting hardware at regular intervals Also check for contamination when changing the cutting attachment and clean thoroughly if necessary N Remove all cuttin...

Page 22: ...r 4 teeth may point in either direction these cutting attachments must be turned over regularly to help avoid one sided wear The cutting edges of the grass cutting blades 255 8 1 and 250 40 Spezial 2...

Page 23: ...r 2 convex side must face up N Fit the guard ring 3 N Block the shaft N Screw the mounting nut 4 on to the shaft counterclockwise and tighten it down firmly WARNING If the mounting nut has become too...

Page 24: ...ble in all markets Mixing Fuel NOTICE Unsuitable fuels or lubricants or mix ratios other than those specified may result in serious damage to the engine Poor quality gasoline or engine oil may damage...

Page 25: ...re in the canister before fueling your machine WARNING Pressure may build up in the canister open it carefully N Clean the fuel tank and canister from time to time Dispose of remaining fuel and cleani...

Page 26: ...w your right hip Over long ends of straps may be shortened after completing the adjustment N Attach the spring hook to the machine s perforated strip 3 Find the right attachment point for the cutting...

Page 27: ...own the trigger lockout lever and squeeze the throttle trigger N and hold them in that position N Move the slide control to START and hold it there N Now release the throttle trigger slide control and...

Page 28: ...ress in button to open the decompression valve N Continue cranking until the engine runs As soon as the engine runs N Blip the throttle trigger immediately The slide control moves to the normal run po...

Page 29: ...rst three tank fillings This avoids unnecessary high loads during the break in period As all moving parts have to bed in during the break in period the frictional resistances in the engine are greater...

Page 30: ...ew LA counterclockwise until the cutting attachment stops moving and then turn the screw another 1 2 to 1 full turn in the same direction WARNING If the cutting attachment continues to rotate when the...

Page 31: ...risk of air filter and carburetor icing At temperatures below 10 C in powdery or drifting snow N Remove the standard air filter 1 and install the special filter 2 for winter operation N Push the cover...

Page 32: ...des are badly eroded Install only suppressed spark plugs of the type approved by STIHL see Specifications Removing the Spark Plug N Move the slide control to STOP 0 N Remove the spark plug boot 1 N Un...

Page 33: ...tamination carbonization STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer Use STIHL gear lubricant special accessory for lubrica...

Page 34: ...le see Special Accessories to sharpen dull cutting attachments In case of more serious wear or nicks Resharpen with a grinder or have the work done by a dealer STIHL recommends a STIHL servicing deale...

Page 35: ...s cutting performance during operation If the mowing head is tapped on the ground too often the line limiter blade will unnecessarily cut off unused lengths of nylon line Line feed operates only if bo...

Page 36: ...lacing the blades Keep the instructions for the mowing head in a safe place WARNING To reduce the risk of injury always shut off the engine before installing the blades N Remove the mowing head N Repl...

Page 37: ...ol handle Check operation X X Air filter Clean X X Replace X Manual fuel pump if fitted Check X Have repaired by servicing dealer1 X Pickup body in fuel tank Check X Replace X X X Fuel tank Clean X X...

Page 38: ...uthorized STIHL servicing dealer 2 not in all versions market specific The following intervals apply to normal operating conditions only If your daily work ing time is longer or operating conditions a...

Page 39: ...hat you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer STIHL dealers are regularly given the opportunity to attend training courses and are supplied wit...

Page 40: ...trigger lockout 6 Clamp screw 7 Carrying strip 8 Manual fuel pump 9 Choke knob 10 Filter cover 11 Fuel tank 12 Spark plug boot 13 Decompression valve 14 Muffler 15 Starter grip 16 Carburetor adjustin...

Page 41: ...2 002BA359 KN 1 3 3 6 4 1 4 8 7 002BA361 KN 002BA362 KN 10 9 Specifications Displacement 40 2 cc Bore 40 mm Stroke 32 mm Engine power to ISO 8893 1 9 kW 2 6 bhp at 9 000 rpm Idle speed 2 800 rpm Cut o...

Page 42: ...es For information on compliance with the REACH regulation EC No 1907 2006 see www stihl com reach FS 450 8 930 rpm FS 450 with long shaft 8 930 rpm FS 450 with short shaft 8 750 rpm Spark plug resist...

Page 43: ...ific waste disposal rules and regulations STIHL products must not be thrown in the garbage can Take the product accessories and packaging to an approved disposal site for environment friendly recyclin...

Page 44: ...ed at ANDREAS STIHL AG Co KG Produktzulassung Product Licensing The year of manufacture and serial number are applied to the product Done at Waiblingen 11 03 2016 ANDREAS STIHL AG Co KG Thomas Elsner...

Page 45: ...FS 400 FS 450 English 43...

Page 46: ...FS 400 FS 450 English 44...

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Page 48: ...www stihl com 04582550121B 0458 255 0121 B 0458 255 0121 B englisch G...

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