Yamaha Cornets Kullanıcı El Kitabı - Sayfa 6
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Before You Play
Handling the Instrument
As the trumpet is made of thin metal, handle the instrument carefully. Do not apply any
excessive force, or bump the instrument so as to dent or damage it.
■ Applying Oil
Apply oil to the pistons
1.
Unscrew the valve cap and pull the piston
straight out of the valve casing until about
half of the valve piston is exposed.
2.
Apply a few drops of valve oil on the pis-
ton.
Piston
* Do not apply too much oil.
3.
Slowly, return the piston into the valve cas-
ing. At this time, make sure the number
stamped on the piston is facing the mouth-
piece. After the valve cap is tightened firmly,
move the piston up and down a few times
to distribute the oil over the piston evenly.
Number
* If all pistons have been removed from the
valve casings, make sure the number
stamped on the piston matches the
number stamped on the casing before
returning the piston into the valve casing.
* The pistons must be oiled for them to
function properly and smoothly.
18
Applying Oil To The Rotors
(Rotary Trumpets Only)
1.
Hold the lever down and remove the valve
slide.
* If the valve slide is removed without
holding the lever down, air pressure in the
pipe drops creating a suction that can
Valve oil
cause poor rotor function or damage to the
inside of the pipe.
2.
Apply some rotor oil to the rotor and then
move the lever a few times to distribute the
oil evenly.
* To keep oil from mixing with the slide
grease or dirt inside of the pipe, hold the
oil container's spout so that is does not
come into contact with the inner walls of
the pipe.
* Since the oil container's spout is metallic,
be careful not to let the spout come into
direct contact with the rotor.
3.
Hold the lever down and replace the valve
slide.
* If you replace the valve slide without
holding the lever down, pressure built up
inside the pipe can cause poor rotor
function or damage to the inside of the
pipe.
Rotor oil