Husqvarna 323P4 Operator's Manual

Also see for 323P4, 325P4, 325P5: Operator's manual Operator's manual Operator's manual Operator's manual

English – 25MAINTENANCECooling systemTo keep the working temperature as low as possible themachine is equipped with a cooling system.The cooling system consists of:1 Air intake on the starter.2 Fins on the flywheel.3 Cooling fins on the cylinder.4 Cylinder cover (directs cold air over the cylinder).Clean the cooling system with a brush once a week, moreoften in demanding conditions. A dirty or blocked coolingsystem results in the machine overheating which causesdamage to the piston and cylinder.Spark plugThe spark plug condition is influenced by:• Incorrect carburettor adjustment.• An incorrect fuel mixture (too much or incorrect type ofoil).• A dirty air filter.These factors cause deposits on the spark plug electrodes,which may result in operating problems and startingdifficulties.If the machine is low on power, difficult to start or runs poorlyat idle speed: always check the spark plug first before takingany further action. If the spark plug is dirty, clean it and checkthat the electrode gap is 0.5 mm. The spark plug should bereplaced after about a month in operation or earlier ifnecessary.CAUTION! Always use the recommended spark plug type!Use of the wrong spark plug can damage the piston/cylinder.Check that the spark plug is fitted with a suppressor.Two-piece shaftThe drive shaft end in the lower shaft should be lubricatedwith grease every 30 hours. There is a risk that the drive shaftends (splined coupling) on models with two-piece shafts willseize if they are not lubricated regularly.Air filterThe air filter must be regularly cleaned to remove dust and dirtin order to avoid:• Carburettor malfunctions• Starting problems• Loss of engine power• Unnecessary wear to engine parts.• Excessive fuel consumption.Clean the filter every 25 hours, or more regularly if conditionsare exceptionally dusty.Cleaning the air filterRemove the air filter cover and take out the filter. Wash itclean in warm, soapy water. Ensure that the filter is dry beforerefitting it.An air filter that has been in use for a long time cannot becleaned completely. The filter must therefore be replaced witha new one at regular intervals. A damaged air filter mustalways be replaced.If the machine is used in dusty conditions the air filter shouldbe soaked in oil. See instructions under the heading Oiling theair filter.1432