Yamaha Cornet Manual do Proprietário - Página 10

Procurar online ou descarregar pdf Manual do Proprietário para Instrumento musical Yamaha Cornet. Yamaha Cornet 16 páginas. Owner's manual

Maintenance

■ Once or twice a month main-

tenance

●

Piston and valve casing maintenance

The trumpet's valves are designed with very little

clearance between the piston and the casing there-

fore, it is very important that these precision parts

be handled with care.

Wrap the cleaning rod with gauze leaving

no bare metal exposed.

Cleaning rod

Gauze

* Exposed metal can result in damaged valve

casings or pistons.

Remove dirt from the inside of the valve

casings.

Remove dirt from the pistons.

Return the piston to its corresponding valve

casing.

After confirming that the number stamped

on the piston matches the number stamped

on the valve casing, carefully insert the pis-

ton straight into the valve casing with the

number stamped on the piston facing the

mouthpiece. Do not rotate the piston in the

valve casing.

Number

Apply valve oil to the piston.

* Do not apply too much oil.

* If air does not pass through the instrument

when the piston is fully depressed, the

piston may be placed in the wrong valve

casing. Make sure that the numbers

stamped on the piston and valve casing

match.

The piston is the most important part of

the trumpet.

Never treat the pistons roughly,

drop the piston, or let the piston fall,

etc. If the piston becomes damaged

or dented, never return it to the

valve casing. Contact the dealer from

whom you purchased the instrument.

Valve oil