Husqvarna 327PT5S Owners Manual - Page 27
Cooling system
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MAINTENANCE cause fire if directed against dry and combustible material. Cooling system To keep the working temperature as low as possible the machine is equipped with a cooling system. 4 Some mufflers are equipped with a special spark arrestor 3 screen. If your machine has this type of muffler, you 2 should clean the screen at least once a week. This is best done with a wire brush. 1 On mufflers without a catalytic converter the screen should be cleaned weekly, or replaced if necessary. On mufflers fitted with a catalytic converter the screen should be checked, and if necessary cleaned, monthly. If the screen is damaged it should be replaced. If the screen is frequently blocked, this can be a sign that the performance of the catalytic converter is impaired. Contact your dealer to inspect the muffler. A blocked screen will cause the machine to overheat and result in damage to the cylinder and piston. See also instructions under the heading Maintenance. CAUTION! Never use a machine with a defective muffler. WARNING! Mufflers fitted with catalytic ! converters get 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! 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, more often in demanding conditions. A dirty or blocked cooling system results in the machine overheating which causes damage to the piston and cylinder. 1153411-49 Rev. 8 2012-02-16 English - 27