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楽器 Yamaha Sousaphone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 Sousaphone 22 ページ。 Owner's manual

The piston makes a metallic

sound when moved.

• The felt is torn or lost.

➞ Replace the felt with a new one.

• The screws on the piston valve or valve

casing are loose.

➞ Firmly tighten the screws.

• The piston shaft is bent.

➞ Contact the dealer from whom you

purchased the instrument.

The rotor lever makes a metallic

sound when moved.

• There is contact or scraping with the

lever's springs.

➞ Oil the lever mechanisms with lever oil.

• The lever comes into contact with the

pipes.

➞ Contact the dealer from whom you

purchased the instrument.

• The screws are loose.

➞ Firmly tighten the screws.

• The rotor and valve casing have come

loose.

➞ Contact the dealer from whom you

purchased the instrument.

Water leaks from the slides.

• Not enough grease.

➞ Apply grease to the slides.

Troubleshooting