Yamaha Cornets Owner's Manual - Page 9
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Maintenance
■ After playing
After playing, make sure that moisture or dirt is removed from the instrument using
the method described below.
●
Valve slide maintenance
1.
Depress the piston that corresponds to the
valve slide you want to clean, and remove
the slide.
3rd valve slide
3rd valve slide stopper screw
* If you remove the valve slide without
holding the piston down, air pressure in
the pipe drops creating a suction that can
cause poor piston function or damage to
the inside of the pipe.
* If the instrument is equipped with a slide
stopper screw, loosen the screw before
removing the slide.
2.
Remove moisture from the slide. Also, re-
move moisture from the water key.
Water key
* Valve slides are made of brass or nickel
silver that is excellent at resisting
corrosion however, corrosion may appear
if moisture is left in the instrument for an
extended period of time. Please use
caution.
Main tuning slide
●
Other maintenance
Apply some valve oil to the pistons and move
the piston up and down a few times, the same
as you do before playing the instrument.
Likewise, apply some rotor oil to the rotors on
rotary trumpets and move the levers a few times.
* Do not apply too much oil.
●
Body maintenance
Gently wipe the surface of the instrument with
a polishing cloth. If dirt or tarnish is obvious,
the following products can be used.
For lacquer finishes
Polishing cloth + lacquer polish
For silver plate
Silver cloth + silver polish
For a beautiful shine, polish the instrument with
a silicone cloth.
Valve oil
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