Setting The Mouthpiece - Yamaha Cornets Owner's Manual

■ 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 tun-
ing slide oil.
* Do not apply too much oil.
2.
Hold the piston down and move the slide
in and out a few times.
3rd valve
* 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. Also, apply a small
amount of oil to the trigger's shaft and screw.
Tuning slide oil
3rd valve slide
Before You Play
■ CAUTION—Preventing The
3rd Valve Slide From Falling
Off.
On instruments fitted with a stopper screw,
make sure the screw is tight.
Stopper screw

■ Setting The Mouthpiece

Insert the mouthpiece into the mouthpiece
receiver so that the mouthpiece is not loose
in the receiver.
Mouthpiece
* Never force the mouthpiece into the
mouthpiece receiver. The mouthpiece may
become jammed making removal difficult.
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