Assessments - 3, GPA: 4.3
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Facilidade de uso
Low speed jet L If the engine run unstable on idle, adjest the L jet clockwise respectively anticlockwise until the engine runs smoothly. Fine adjustment of the idle speed T Adjust the idle speed screew T clockwise respectively anti- clockwise until an idle speed of 2300 rpm is reached. High speed jet H Apply full throttle. Adjust the H jet clockwise respectively anti- clockwise until a racing speed of 5800-6000 rpm is reached and the engine runs smoothly. Correctly adjusted carburetor When the carburetor is correctly adjusted the machine will accelerate without hesitation and burble a little at maximum speed. If the low speed jet L is set too lean it may cause starting difficulties and poor acceleration. If the high speed jet H is set too lean it will result in less power, less performance, poor acceleration and/or damage to the engine. If both the L and H jets are set too rich it will results in acceleration problems or too low a working speed. 14 – English English – 15 MAINTENANCE Muffler The muffler is designed to reduce the noise level and to direct the exhaust gases away from the operator. The exhaust gases are hot and can contain sparks, which may cause fire if directed against dry and combustible material. The muffler is equipped with a special spark arrestor screen. The spark arrestor screen should be cleaned once a month. This is best done with a wire brush. To remove the spark arrestor screen proceed as follows: Remove the screws to the capillary tube and exhaust pipe. Loosen the muffler’s 2 screws and remove the muffler. Pull out the spark arrestor screen and clean using a wire brush. Replace the spark arrestor screen if it is defective. CAUTION! Never use a machine with a defective muffler. Cooling system To keep the working temperature as low as possible the machine is equipped with a cooling system. The cooling system consists of: 1 Air intake on the underside of the blower. 2 Nozzle for cooling the cylinder 3 Cooling fins on the cylinder. 4 Cooling air conductor (directs cold air over the cylinder). 5 Emergency cooling nozzle Clean the cooling system with a brush once a week, more often in demanding conditions. A dirty or blocked cooling system results in the machine overheating which causes damage to the piston and cylinder. Check that the nozzles are not blocked. Spark plug The spark plug condition is influenced by: • Incorrect carburetor adjustment. • An incorrect fuel mixture (too much or incorrect type of oil). • A dirty air filter. These factors cause deposits on the spark plug electrodes, which may result in operating problems and starting difficulties. If the machine is low on power, difficult to start or runs poorly at idle speed: always check the spark plug first before taking any further action. If the spark plug is dirty, clean it and check that the electrode gap is 0.020 inch (0.5 mm). The spark plug should be replaced after about a month in operation or earlier if necessary. CAUTION! Always use the recommended spark plug type! Use of the wrong spark plug can damage the piston/cylinder. ! WARNING! The muffler gets very hot during use and remain so for some time after stopping. This also applies at idle speed. Contact can result in burns to the skin. Remember the risk of fire! 5 1 4 3 2 16 – English MAINTENANCE Air filter The air filter must be regularly cleaned to remove dust and dirt in order to avoid: • Carburettor malfunctions • Starting problems • Loss of engine power • Unnecessary wear to engine parts • Excessive fuel consumption. Clean the filter every 40 hours, or more regularly if conditions are exceptionally dusty. Avoid contact with hot surfaces on muffler, cylinder etc. Contact can result in burns to the skin. Cleaning the air filter Dismantle the outer cover with the help of the four fasteners holding the outer cover. Loosen the two fasteners holding the air filter cowling and remove the filter. Wash the filter clean in warm, soapy water. The air filter is fitted in the air filter cowling. Ensure that the filter is soaked in oil before refitting it. An air filter that has been in use for a long time cannot be cleaned completely. The filter must therefore be replaced with a new one at regular intervals. A damaged air filter must always be replaced. Oiling the air filter Always use HUSQVARNA filter oil, art. no. 531 00 60-76. The filter oil contains a solvent to make it spread evenly through the filter. You should therefore avoid skin contact. Put the filter in a plastic bag and pour the filter oil over it. Knead the plastic bag to distribute the oil. Squeeze the excess oil out of the filter inside the plastic bag and pour off the excess before fitting the filter to the machine. Never use common engine oil. This would drain through the filter quite quickly and collect in the bottom. MAINTENANCE Maintenance schedule Below you will find some general maintenance instructions. If you need further information please contact your service workshop. Daily maintenance 1 Clean t...
Este manual também é adequado para os modelos :Sistemas de ventilação - 356 BT X-series (1.19 mb)