User Manual

25
Troubleshooting
Tone is not clear and pitch is poor.
• e valves are dirty.
➞
Clean the valves.
• ere is a large dent or air is leaking from
the trumpet.
• e mouthpiece doesn’t t the mouthpiece
receiver and air is leaking.
➞
Contact the dealer from whom you pur-
chased the instrument.
• e felt or cork is damaged.
➞
Contact the dealer from whom you pur-
chased the instrument.
No sound.
• e holes in the piston are not aligned with
the holes in the valve casing.
➞
Make sure the number stamped on the
piston matches the number stamped on the
valve casing.
e pistons are sluggish.
• Dirt has accumulated between the pistons
and valve casings.
➞
Clean the inside of the valve casing.
• Dropping or hitting the piston has damaged
it.
➞
Do not use the instrument with a damaged
piston.
Contact the dealer from whom you pur-
chased the instrument.
• e piston or valve casing is corroded.
➞
Contact the dealer from whom you pur-
chased the instrument.
e valve slide is stuck and cannot be
removed. e slide is sluggish.
• Dirt has accumulated between the valve slide
and inner tube.
➞
oroughly remove dirt and apply some
slide grease that matches the type of slide,
or apply some tuning slide oil.
• Dropping or hitting the slide has caused a
dent, or the slide was bent while cleaning.
➞
Contact the dealer from whom you pur-
chased the instrument.
e screw is too tight and cannot be
removed.
• e screw is corroded.
• Dropping or hitting the instrument has dam-
aged the screw.
➞
Contact the dealer from whom you pur-
chased the instrument.
Air does not pass thorough the instru-
ment.
• e piston is in the wrong valve casing.
➞
Set the piston into the proper valve casing.
e mouthpiece cannot be removed.
• e instrument was dropped or hit with the
mouthpiece attached. Or, the mouthpiece
was inserted with force.
• e instrument has been left for a long
period of time with the mouthpiece inserted
in the instrument.
➞
Contact the dealer from whom you pur-
chased the instrument.
e instrument makes a strange sound
when played.
• Solder on the instrument has come loose, or
a foreign object is inside it.
➞
Contact the dealer from whom you pur-
chased the instrument.
e piston makes a metallic noise when
pressed.
• e felt is torn or lost.
➞
Please contact the dealer from whom you
purchased the instrument.
• e cover on the piston valve or valve casing
is loose.
➞
Firmly tighten the covers.
• e piston’s shaft is bent.
➞
Please contact the dealer from whom you
purchased the instrument.