Yamaha YSH-411S Руководство пользователя - Страница 14
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Maintenance
After Playing
After playing the instrument, make sure that moisture or dirt is removed from it using the
procedure described below.
Valve slide maintenance
1.
Depress the piston or lever that corresponds to
the valve slide you want to clean, and remove
the slide.
* Removing the valve slide without holding the piston
down creates a drop in air pressure within the pipe,
creating a suction which can result in poor piston
function or damage to the inside of the pipe.
2.
Remove moisture from the slide. Also, remove
moisture from the water key.
Water Key
* Th e valve slides are made of brass or nickel silver
which are both excellent at resisting corrosion.
However, corrosion may appear if moisture is left
in the instrument for an extended period of time.
Please use caution.
14
Oil the pistons
As done before playing the instrument, apply some
valve oil to the pistons and move them up and
down a few times. (See page 8)
Oil the rotors (Rotary tuba only)
As done before playing the instrument, apply some
rotor spindle oil to the rotors and move the levers
a few times. (See page 8)
Water Pot Maintenance
(YEP-842 Euphonium only)
1.
Slide the water pot to the left or right to release,
then slide it down to remove.
water pot
2.
Remove any moisture or oil from the water pot
onto a cloth, etc. Clean the inside of the water pot
with running water.
3.
Align the holes on the water pot with the nipples
on the bottom of the valve casings then, as you
did when removing the water pot, slide it to the
left or right (either direction is OK) to reattach.
Nipple