Husqvarna 576 XP AutoTune Owners Manual - Page 30

MAINTENANCE General The user must only carry out the maintenance and service work described in this manual. More extensive work must be carried out by an authorized service workshop. Carburetor adjustment Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions. AutoTune If the engine is equipped with AutoTune, manual adjustment of the carburettor's H and L needles and the T-screw no longer applies. Both needles and the T-screw have been removed. AutoTune is a function that adjusts the carburettor electronically, always resulting in optimal adjustment. Function • The carburetor governs the engine's speed via the throttle control. Air and fuel are mixed in the carburetor. The air/fuel mixture is adjustable. • The automatic adjustment of the carburettor means that the engine is adapted to local conditions, e.g. the climate, altitude, petrol and the type of 2-stroke oil. This function is controlled by AutoTune. Conditions CAUTION! There is an integrated speed governor in the ignition system that limits the maximum speed to 13600 rpm. When the speed governor is activated, you will get the same sound experience as when the chain saw 4cycles. Correctly adjusted carburetor A correctly adjusted carburettor means the machine accelerates without hesitation and it four-strokes a little at full throttle. In addition, the chain should not rotate when idling. Checking, maintaining and servicing chain saw safety equipment Note! All servicing and repair work on the machine requires special training. This is especially true of the machine′s safety equipment. If your machine fails any of the checks described below we recommend you to contact our servicing dealer. Chain brake and front hand guard Checking brake band wear Brush off any wood dust, resin and dirt from the chain brake and clutch drum. Dirt and wear can impair operation of the brake. Regularly check that the brake band is at least 0.024 inch (0.6 mm) thick at its thinnest point. Checking the front hand guard Make sure the front hand guard is not damaged and that there are no visible defects such as cracks. Move the front hand guard forwards and back to make sure it moves freely and that it is securely anchored to the clutch cover. 30 - English