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Anleitung Stihl, modell FS 500, FS 550

Hersteller: Stihl
Dateigröße: 1.69 mb
Dateiname: 8c762f99-90ee-31c4-d5fe-6d978c4229d1.pdf
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Anleitung Zusammenfassung


If the engine doesn’t start: Tank has been run until completely dry : Pull the starter grip slowly with your When the engine begins to fire: right hand until you feel it engage – and then give it a brisk strong pull. : Turn choke knob clockwise, away and then refueled: : Press fuel pump bulb at least 5 times – even if bulb is filled with Do not pull out the starter rope all from g. the way – it might otherwise break. : Press decompression valve button Do not let the starter grip snap back again and continue cranking. – guide it slowly into the housing so As soon as the engine runs: that the starter rope can rewind : Blip the throttle trigger ( 2) – properly. the slide control ( 3) moves to the run position # and the engine returns to idle speed. Make sure the carburetor is correctly adjusted – the cutting tool must not rotate when the engine is idling. Your machine is ready for operation. fuel. : Now start the engine. If you did not turn the choke knob away from g quickly enough after the engine began to fire, the combustion chamber is flooded. FS 500, FS 550 English / USA Operating Instructions : Turn the choke knob away from g. : Set the slide control, interlock lever and throttle trigger to the starting throttle position. : Start the engine by pulling the starter rope firmly – 10 to 20 pulls may be necessary. 5 6 398BA018 KN If the engine still does not start: : Move the slide control to 0 c. : Loosen the screw ( 5) and swing cover out of the way. : Remove the spark plug boot ( 6). : Unscrew and dry off the spark plug. : Open the throttle fully. : Pull the starter rope several times to clear the combustion chamber. : Refit the spark plug. : Connect the spark plug boot. Close the cover and secure it with the screw. : Move the slide control to START. : Turn the choke knob away from g even if the engine is cold. : Now start the engine. Throttle cable adjustment : Check that the throttle cable is properly adjusted – see "Adjusting the Throttle Cable" . During break-in period A factory new machine should not be run at high revs (full throttle off load) for the first 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 during this period. The engine develops its maximum power after about 5 to 15 tank fillings. During operation After a long period of full-throttle operation, allow engine to run for a while at idle speed so that the heat in the engine can be dissipated by flow of cooling air. This protects engine- mounted components (ignition, carburetor) from thermal overload. After finishing work Wait for engine to cool down. Drain the fuel tank. Store the machine in a dry place. Check tightness of nuts and screws (not adjusting screws) at regular intervals and retighten as necessary. FS 500, FS 550 English / USA Cleaning the Air Filter Motor Management 398BA019 KN 1 5 432 Dirty air filters reduce engine power, increase fuel consumption and make starting more difficult. If there is a noticeable loss of engine power : Move the choke knob to g. : Loosen the mounting screws ( 1). : Remove the carburetor box cover ( 2) with felt ( 3) and fabric ( 4) filter elements. : Clean away loose dirt from inside the filter cover and around the filter. : Remove fabric and felt filter elements from the cover. : Knock out the fabric filter element or blow it clear with compressed air. If heavily contaminated: Wash fabric filter in STIHL universal cleaner or a clean, non-flammable cleaning solution (e.g. warm soapy water) and then dry. Always replace a damaged fabric filter element. : Do not wash the felt filter – it may only be knocked out or blown out. Replace damaged or heavily contaminated felt filter element. : Pull out the plug ( 5), clean it and reinstall. : Fit felt and fabric filter elements in the carburetor box cover. : Mount the carburetor box cover in position. Exhaust emissions are controlled by the design of the fundamental engine parameters and components (e.g. carburation, ignition, timing and valve or port timing) without the addition of any major hardware. FS 500, FS 550 English / USA Adjusting the Carburetor LA H L 398BA020 KN The carburetor comes from the factory with a standard setting. This setting provides an optimum fuel-air mixture under most operating conditions. Standard Setting : Shut off the engine. : Mount approved cutting tool. : Check the air filter and clean or replace it if necessary. : Check spark arresting screen* and clean or replace if necessary. : Turn high speed screw (H) counterclockwise as far as stop, i. e. 1/4 turn from max. lean setting. : Turn low speed screw (L) clockwise as far as stop – then back off the screw one quarter of a turn. : Start and warm up the engine. : Adjust idle speed with the idle speed screw (LA) so that the cutting tool does not rotate. Fine Tuning A slight correction of the setting of the high speed screw (H) may be...


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