Stihl FS 88 Instruction Manual - Page 12
W mmg, Warning, Warn'ng, Important adjustments, amlng, Waming
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W mmg! When using rigid blades, avoid cutting close to fences, sides of buildings, tree trunks, stones or other such objects that could cause the brushcutter to kick out or could cause damage to the blade. STIHL recommends use of the nylon line heads or Polycut head for such jobs. In addition, be alert to an increased possibility of ricochets in such situations. Do not operate using the starting throttle lock as you do not have control of the engine speed. See section of your owner's manual on the proper use of the slide control. If the cutting tool or deflector becomes clogged or stuck, always turn off the engine and make sure the cutting tool has stopped, before cleaning. Grass, weeds, etc. should be cleaned off the cutting tool at regular intervals. Warning! During CUlling, check the tightness and the condition of the cutting tool at regular intervals. If the behavior of the tool changes, stop the engine immediately, and check the nut securing the tool for tightness and the cutting tool for cracks and damage. Replace cracked, bent, warped, dam aged or dull cutting tools immediately. Such tools may shatter at high speed and cause serious or fatal injury. Warn'ng' A loose blade may cause the blade to vibrate, crack, break or come off the brushcutter, which may result in serious or fatal injury. Make sure that the blade 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. Never use unauthorized parts to secure the blade. If the blade continues to loosen, see your STIHL dealer. Never use a brushculler with a loose blade. Important adjustments amlng' To reduce the risk of personal injury from loss of control or contact with the running grass cutting blade, do not use a grass cutting blade with incorrect idle adjustment. At correct idle speed, the grass cutting blade should not move. For directions to adjust idle speed, see the appropriate section of your owner's manual. If you cannot set the correct idle speed, have your STIHL dealer check your brushcutter and make proper adjustments or repairs. Waming' Never touch a rotating cutting tool with your hand or any part of your body. It continues to rotate for a short period after the throttle trigger is released (flywheel effect).