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Troubleshooting
Tone is not clear and pitch is poor.
• The valves are dirty.
➞ Clean the valves.
• There is a large dent or air is leaking from
the trumpet.
• The mouthpiece doesn't fit the mouthpiece
receiver and air is leaking.
➞ Contact the dealer from whom you pur-
chased the instrument.
• The felt or cork is damaged.
➞ Contact the dealer from whom you pur-
chased the instrument.
No sound.
• The 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.
The 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.
• The piston or valve casing is corroded.
➞ Contact the dealer from whom you pur-
chased the instrument.
The valve slide is stuck and cannot be
removed. The slide is sluggish.
• Dirt has accumulated between the valve slide
and inner tube.
➞ Thoroughly 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.
The screw is too tight and cannot be
removed.
• The 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.
• The piston is in the wrong valve casing.
➞ Set the piston into the proper valve casing.
The mouthpiece cannot be removed.
• The instrument was dropped or hit with the
mouthpiece attached. Or, the mouthpiece
was inserted with force.
• The 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.
The 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.
The piston makes a metallic noise when
pressed.
• The felt is torn or lost.
➞ Please contact the dealer from whom you
purchased the instrument.
• The cover on the piston valve or valve casing
is loose.
➞ Firmly tighten the covers.
• The piston's shaft is bent.
➞ Please contact the dealer from whom you
purchased the instrument.
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