Husqvarna 545 Operation Manual - Page 34

MAINTENANCE Lubricating the bar tip sprocket Lubricate the bar tip sprocket each time you refuel. Use the special grease gun and a good quality bearing grease. Recommended settings: Bar 13"-15": Minimum flow Bar 16"-18": Medium flow Bar -20": Maximum flow WARNING! The engine must not be ! running when making adjustments. Cooling system Needle bearing lubrication The clutch drum has a needle bearing on the output shaft. This needle bearing must be lubricated regularly (once a week). When lubricating, remove the clutch cover by loosening the two bar nuts. Lay the saw on its side with the clutch drum upwards. Lubrication involves grease being squirted into the centre of the crankshaft using a grease gun. 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 starter. 2 Air guide plate. 3 Fins on the flywheel. 4 Cooling fins on the cylinder. 5 Cylinder cover (directs cold air over the cylinder). Adjustment of the oil pump. The oil pump is adjustable. Adjustments are made by turning the screw using a screwdriver or combination spanner. The machine is supplied from the factory with the screw set to middle position. Turning the screw clockwise will reduce the oil flow and turning the screw anti-clockwise will increase the oil flow. 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. Note! The cooling system on a chain saw with catalytic converter must be cleaned daily. This is particularly important on chain saws with catalytic converters, because the higher exhaust temperature requires efficient cooling of the engine and the catalytic converter unit. +- 34 - English