User Manual

19
Troubleshooting
 e piston makes a metallic sound
when moved.
•  e felt is torn or lost.

Replace the felt with a new one.
•  e screws on the piston valve or valve casing
are loose.

Firmly tighten the screws.
•  e piston shaft is bent.

Contact the dealer from whom you pur-
chased the instrument.
 e rotor lever makes a metallic sound
when moved.
•  ere is contact or scraping with the lever’s
springs.

Oil the lever mechanisms with lever oil.
•  e lever comes into contact with the pipes.

Contact the dealer from whom you pur-
chased the instrument.
•  e screws are loose.

Firmly tighten the screws.
•  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.