Assessments - 4, GPA: 4.5
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The cooling system consists of: 1.An air intake on the starter unit. 2.Cooling fins on the flywheel. 3.Cooling fins on the cylinder 4.Cylinder cover (leads cold air onto the cylinder). Clean the cooling system using a brush at least once a week, in difficult conditions more often. A dirty or blocked cooling system leads to the engine overheating resulting in damage to the cylinder and piston. Air filter The air filter should be cleaned regularly removing dust and dirt to avoid: • carburetor malfunction • starting problems • reduced engine power • unnecessary wear to engine parts • abnormal fuel consumption Clean the filter after every 25 hours or more regularly if operating conditions are exceptionally dusty. Cleaning the air filter Dismantle the air filter cover and remove the air filter. Wash in clean, warm soapy water. Ensure that the filter is dry before refitting. An air filter used for a long period of time can never be cleaned completely. Therefore it is necessary to replace the filter from time to time with a new filter. A damaged air filter must always be replaced. 1 2 3 4 18 – English MAINTENANCE Spark plug The condition of the spark plug is affected by: • An incorrect carburetor setting. • An incorrect fuel mixture (too much or faulty oil). • A dirty air filter. These factors cause deposits on the spark plug electrode that may result in malfunction or starting difficulties. 0,5 mm If the machine is low on power, difficult to start or runs poorly while idling always check the spark plug first. If the spark plug is dirty, clean it and at the same time check that the electrode gap is 0.5 mm. The spark plug should be changed after about one month of operation or earlier if necessary. NOTE! Always use the recommended type of spark plug. An incorrect spark plug can damage the cylinder/piston. Angle gear The angle gear is filled with a sufficient quantity of grease at the factory. However, before using the machine you should check that the angle gear is filled to 3/4 with grease. Use special grease. Normally, the grease does not need to be changed except when repairs are carried out. Two-part shaft The end of the drive axle in the lower shaft should be lubricated with grease every 30 hours. There is a risk that the drive axle ends (splined coupling) on two- part shafts jam if they are not lubricated regularly. NOTE: Use only HUSQVARNA replacement parts. Use of other brands of replacement parts can cause damage to your unit or injury to the operator or others. Your warranty does not cover damage or liability caused by the use of accessories and/or attachments not specifically recommended by HUSQVARNA. Maintenance schedule Below you will find some general maintenance instructions. Daily maintenance • Check throttle trigger and throttle trigger lockout function. • Check stop switch function. • Check that blade/trimmer head does not rotate at idling. • Clean the exterior of the machine. • Check that the harness is undamaged. • Check the guard for damage or cracks. • Change the guard in case of impacts or cracks. • Check the trimmer head for cracks and chips or damage. Replace if necessary. • A non-balanced blade/trimmer head induces heavy vibrations that may damage the machine. • Check that the locking nut is sufficiently tightened. • Check that nuts and screws are sufficiently tightened. Weekly maintenance • Check the starter, especially cord and return spring. • Clean the carburetor area. • Clean the exterior of the spark plug. • Remove it and check the electrode gap. • Adjust it to 0,5 mm (.020"), or change the spark plug. • Clean the cooling fins on the cylinder and check that the air intake at the starter is not clogged. • Check that the angle gear is filled with grease up to 3/4. Use special grease. • Clean the air filter. • Clean or replace the muffler’s spark arrest screen (only mufflers with a catalytic converter). Monthly maintenance • Clean the fuel tank. • Clean the exterior of the carburetor and the space around it. • Clean the fan and the space around it. • Check fuel hose for cracks or other damage. Change if necessary. • Change fuel filter in fuel tank. • Check clutch, clutch spring and clutch drum for wear. Change if necessary. • Check electrical wires and connections. • Change the spark plug. • Change the airfilter. • Check and clean the muffler’s spark arrest screen if necessary (only mufflers with a catalytic converter). English – 19 TECHNICAL DATA Technical data 225L/LD 227L/LD 232L Engine Cylinder capacity, cu. in/cm3 1,55/25,4 1,64/26,9 1,88/30,8 Cylinder bore, inch/mm 1,34/34 1,38/35 1,38/35 Stroke length, inch/mm 1,10/28 1,10/28 1,26/32 Recommended max. speed, rpm 11 000-11 700 11 000-11 700 11 000-11 700 Idling speed, rpm 2 700 2 700 2 700 Speed of output axle, rpm 10 000 10 000 10 000 Max. engine output, acc. to ISO 8893 0,9 kW/ 9 000 rpm 1,0 kW/ 9 000 rpm 1,1 kW/ 8 400 rpm Catalytic converter muffler Yes Yes Yes Speed-regulated ignition system Yes Yes Yes Ignition system Manufact...
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