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楽器 Yamaha YTR2330のPDF オーナーズマニュアルをオンラインで閲覧またはダウンロードできます。Yamaha YTR2330 16 ページ。 Trumpet/cornet/flugelhorn/ rotary trumpet
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Maintenance
■ Once a week maintenance
Piston and valve casing maintenance
●
The trumpet's valves are designed with very little
clearance between the piston and the casing there-
fore, it is very important that these precision parts be
handled with care.
1.
Wrap the cleaning rod with gauze leaving no
bare metal exposed.
Cleaning
rod
Gauze
* Exposed metal can result in damaged valve casings
or pistons.
2.
Remove dirt from the inside of the valve cas-
ings.
3.
Remove dirt from the pistons.
22
4.
Return the piston to its corresponding valve
casing.
After confirming that the number stamped
on the piston matches the number stamped
on the valve casing, carefully insert the piston
straight into the valve casing with the number
stamped on the piston facing the mouthpiece.
Do not rotate the piston in the valve casing.
Number
5.
Apply valve oil to the piston.
* Do not apply too much oil.
* If air does not pass through the instrument when
the piston is fully depressed, the piston may be
placed in the wrong valve casing. Make sure that
the numbers stamped on the piston and valve
casing match.
The piston is the most important part of
the trumpet.
Never treat the pistons roughly, drop
the piston, or let the piston fall, etc. If
the piston becomes damaged or dented,
never return it to the valve casing. Con-
tact the dealer from whom you purchased
the instrument.
Valve oil