Husqvarna 525RX Operation Manual - Page 18

STARTING AND STOPPING Check before starting Starting and stopping Check the blade to ensure that no cracks have formed at the bottom of the teeth or by the centre hole. The most common reason why cracks are formed is that sharp corners have been formed at the bottom of the teeth while sharpening or that the blade has been used with dull teeth. Discard a blade if cracks are found. • Check that the support flange is not cracked due to fatigue or due to being tightened too much. Discard the support flange if it is cracked. Ensure the locking nut has not lost its captive force. The nut lock should have a locking force of at least 1.5 Nm. The tightening torque of the locking nut should be 35-50 Nm. WARNING! The complete clutch cover ! and shaft must be fitted before the machine is started, otherwise the clutch can come loose and cause personal injury. Always move the machine away from the refuelling area and source before starting. Place the machine on a flat surface. Ensure the cutting attachment cannot come into contact with any object. Make sure no unauthorised persons are in the working area. Otherwise there is a risk of serious personal injury. The safety distance is 15 meters. Starting Air purge: Press the air purge repeatedly until fuel begins to fill the bulb. The bulb need not be completely filled. • Check that the trimmer head and trimmer guard are not damaged or cracked. Replace the trimmer head or trimmer guard if they have been exposed to impact or are cracked. Choke: Set the choke control in the choke position. • Never use the machine without a guard nor with a defective guard. • All covers must be correctly fitted and undamaged before you start the machine. WARNING! When the engine is started ! with the choke in either the choke or start throttle positions the cutting attachment will start to rotate immediately. 18 - English