Yamaha YTR-8335RGS Owners Manual - Page 7

Before You Play ■ Applying Oil To The Valve Slides 1. Depress the piston that corresponds to the slide that you want to apply oil and partially remove the slide. Apply a few drops of tuning slide oil. Tuning slide oil ■ Setting The Mouthpiece Insert the mouthpiece into the mouthpiece receiver so that the mouthpiece is not loose in the receiver. Mouthpiece * Do not apply too much oil. 2. Hold the piston down and move the slide in and out a few times. 3rd valve 3rd valve slide * If you remove or replace the valve slide without holding the piston down, the drop or buildup of air pressure in the pipe can cause poor piston function or damage to the inside of the pipe. * The pistons must be oiled for them to function properly and smoothly. After applying slide oil to valve slides equipped with a spring type slide trigger, hold the piston down and move the slide in and out a few times as you did before to distribute the oil evenly. ■ CAUTION­-Preventing The 3rd Valve Slide From Falling Off. On instruments fitted with a stopper screw, make sure the screw is tight. Stopper screw * Never force the mouthpiece into the mouthpiece receiver. The mouthpiece may become jammed making removal difficult. About the slide stopper Some instruments are supplied with a silicon Yamaha Slide Stopper to prevent accidental removal of the tuning slides. The stopper can be left in place when playing and used in other configurations as shown below. When shipped Example-1 Example-2 * Make sure that the ring is hooked on securely to prevent it from coming unhooked. * Wash with water when necessary. * Do not expose the product to any heat source, high temperature, or direct sunlight. * Keep out of reach of young children. * In rare instances, oil may seep from the silicon rubber. This has no affect on product quality or the instrument. 19