Yamaha YEB-201MS 소유자 매뉴얼 - 페이지 19

{카테고리_이름} Yamaha YEB-201MS에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Yamaha YEB-201MS 31 페이지. Alto (tenor) horn/baritone/ euphonium/tuba/sousaphone

Th e piston makes a metallic sound

when moved.

• Th e felt is torn or lost.

 Replace the felt with a new one.

• Th e screws on the piston valve or valve casing

are loose.

 Firmly tighten the screws.

• Th e piston shaft is bent.

 Contact the dealer from whom you pur-

chased the instrument.

Th e rotor lever makes a metallic sound

when moved.

• Th ere is contact or scraping with the lever's

springs.

 Oil the lever mechanisms with lever oil.

• Th e lever comes into contact with the pipes.

 Contact the dealer from whom you pur-

chased the instrument.

• Th e screws are loose.

 Firmly tighten the screws.

• Th e rotor and valve casing have come loose.

 Contact the dealer from whom you pur-

chased the instrument.

Water leaks from the slides.

• Not enough grease.

 Apply grease to the slides.

Troubleshooting