Stihl FC 90 Product Instruction Manual - Page 12

English Warning! Before you start work, examine the area for stones, glass, fence wire, metal, trash or other solid objects. The cutting attachment could throw objects of this kind. Warning! During cutting, check the tightness and the condition of the cutting attachment at regular short intervals with the engine and attachment stopped. If the behavior of the attachment changes during use, stop the engine immediately, wait until the cutting attachment stops, and check the nut securing the attachment for tightness and the blade for cracks, wear and damage. Warning! A loose blade may vibrate, crack, break or come off the edger, which may result in serious or fatal injury. Make sure that the cutting attachment is properly tightened. Use the wrench supplied or one of sufficient length to obtain the proper torque. If the blade loosens after being properly tightened, stop work immediately. The retaining nut may be worn or damaged and should be replaced. If the blade continues to loosen, see your STIHL dealer. Never use an edger with a loose cutting attachment. Warning! Replace a cracked, bent, warped, damaged, dull or worn out blade immediately, even if damage is limited to superficial cracks. Such attachments may shatter at high speed and cause serious or fatal injury. Warning! When using your edger, avoid cutting close to fences, sides of buildings, tree trunks, stones or other such objects that could cause the power tool to kick out or could cause damage to the blade. Warning! If the blade or deflector becomes clogged or stuck, always shut off the engine and make sure the cutting attachment has stopped before cleaning. Grass, weeds, etc. should be cleaned off the blade at regular intervals. Warning! To reduce the risk of unintentional rotation of the cutting attachment and injury, always shut off the engine before replacing the cutting attachment. Warning! The gearbox becomes hot during operation. To reduce the risk of burn injury, do not touch the gear housing when it is hot. Warning! The muffler and other parts of the engine (e.g. fins of the cylinder, spark plug) become hot during operation and remain hot for a while after stopping the engine. To reduce risk of burns do not touch the muffler and other parts while they are hot. Warning! To reduce the risk of fire and burn injury, keep the area around the muffler clean. Remove excess lubricant and all debris such as pine needles, branches or leaves. Let the engine cool down sitting on concrete, metal, bare ground or solid wood away from any combustible substances. Warning! Never modify your muffler. The muffler could be damaged and cause an increase in heat radiation or sparks, thereby increasing the risk of fire and burn injury. You may also permanently damage the engine. Have your muffler serviced and repaired by your STIHL servicing dealer only. USING THE CUTTING ATTACHMENT For an illustration of the cutting attachment and instructions on proper mounting see the chapter on "Replacing the Cutting Blade" in your instruction manual. 10 FC 90