Stihl FS 490 C-M Instruction Manual - Page 36
Operating Instructions
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English Stopping the Engine N Depress the momentary contact stop switch - the engine stops - release the stop switch - it springs back to the run position. Other Hints on Starting Starting for first time N Depress the throttle trigger - do not press down the throttle trigger lockout. If engine speed increases or the cutting attachment rotates: N Go to section "Stopping the Engine". N Go to "Adjusting the Throttle Cable". If the engine speed does not increase, your machine is ready for operation. 6BA024 KN 002BA485 KN At very low outside temperatures N Set the engine to winter operation if necessary, see "Winter Operation". N If the machine is very cold (frost on machine), allow the engine to warm up in the Start } position after starting until normal operating temperature is reached. Warning: The cutting attachment runs. If the engine does not start N Check that all settings are correct. N Check that there is fuel in the tank and refuel if necessary. N Check that the spark plug boot is properly connected. N Repeat the starting procedure. Engine is flooded N Move the choke lever to F and continue cranking until the engine runs. Fuel tank run until completely dry N After refueling, press the manual fuel pump bulb at least five times - even if the bulb is filled with fuel. N Now start the engine. Operating Instructions 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 the engine to run for a short while at idle speed so that engine heat can be dissipated by the flow of cooling air. This protects enginemounted components (ignition, carburetor) from thermal overload. After Finishing Work Storing for a short period: Wait for the engine to cool down. Empty the fuel tank and keep the machine in a dry place, well away from sources of ignition, until you need it again. For longer out-ofservice periods - see "Storing the Machine". 34 FS 460 C-M, FS 460 C-M L, FS 490 C-M, FS 490 C-M L