Yamaha Trombones Owner's Manual - Page 7
Oiling the Rotary Valve - trombone slide oil
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Before Playing 3. Put the outer slide on the inner slide and slide the two sections back and forth several times to distribute the cream evenly. ■ Oiling the Rotary Valve On tenor bass trombones and bass trombones, apply rotor oil directly to the rotary valve through the slide receiver. Bell * The amount of slide cream applied to the slide has an effect on how smooth the slide moves. Experiment with different amounts of cream to determine the optimum amount necessary. * If the slide becomes sluggish while playing, moisten the slide with the water spray bottle. CAUTION! Preventing the Slide From Coming Off The slide consists of outer and inner slide sections. Make sure that the slide lock ring is securely locked to keep the outer slide from accidentally coming off when assembling the instrument, etc. Receiver * Rotor oil adhering to the inside of the receiver can attract dirt and dust to the rotary valve resulting in poor function. Please use caution. Slide Stopper Outer Slide Slide Lock Ring When Locked 21