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Facilité d'utilisation
29 Other Adjustments You can change the stroke from long to short by changing the position of the bearing stopper screw on the YHR-567GDB. (Open F is shown in the illustration.) The 4th lever on the YHR-667V/VS, YHR-668D/ND, YHR-567/567GDB can be adjusted to better fit the players hand size and position. Use a screw driver and adjust the lever length as shown in the illustration below. Bearing stopper screw Install here for Open Bb. * When the bearing stopper screw is installed near the rotating center, the stroke will become short. When the screw is installed far from the rotating center, the stroke will become long. 30 Options . Eb Crook (optional) This optional main tuning slide is designed for the YHR-314 and transforms the single F horn into an Eb horn so that you can play Eb parts without transposing. The crook is designed so that the horn fits in the case when it is attached. Main Tuning Slide Eb Crook When using the Eb crook, the 1st through 3rd valve tuning slides should be pulled out a little. 31 Options . F Natural Slide (optional) Attached to the YHR-322’s 4th valve slide the F natural slide offers the sound of an open F horn. It enhances clarity in the mid-low range such as C (actual F) or G (actual C) and stable intonation. The F Natural Slide is designed so that the horn fits in the case when attached. F Natural Slide 32 Tone is not clear and pitch is poor. • Dirt has accumulated inside the tubing. . Use the procedure described in the “Valve Slide Maintenance” section and wash out the insides of the tubing. • The water key cork is cracked causing air to leak. . Replace the water key cork with a new one. • The mouthpiece is loose and rattles, and air is leaking from around the mouthpiece. • There is a large dent in the tubing, and air is leaking from the ferrules where the tubing connects. • There is a foreign object in the tubing. • Holes in the rotors are not aligned with holes in the valve casing branches. . Contact the dealer from whom you purchased the instrument. The rotors are sluggish. • The string is loose. . Use a screwdriver and tighten the string. • Dirt has accumulated between the valve casing and rotor. • The valve casing is deformed. • The rotary valve was disassembled, then reassembled. . Contact the dealer from whom you purchased the instrument. The valve slide is stuck and can not be removed. The slide is sluggish. • Dirt or dust has accumulated between the outer and inner slides and the valve slide is damaged. . Remove dirt from the slides then apply some slide grease. • Dropping or hitting the slide has created a dent, or the slide was bent while cleaning. . Contact the dealer from whom you purchased the instrument. The screw is too tight and can not be loosened. • The screw is corroded. • Hitting the screw has damaged it. . Contact the dealer from whom you purchased the instrument. The mouthpiece can not be removed. • The instrument was dropped or hit with the mouthpiece attached. Or, the mouthpiece was inserted...
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