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You should get in
the habit of oiling you valves every time you use your instrument.
This example is shown with a trumpet. Other brass instruments
with
piston
valves
use
the same procedure. Oil valves one at a time in order to reassemble
the instrument correctly.
- Make sure you have the following supplies: (a) valve oil (b)
shop rag
- Loosen the valve cap counter-clockwise and remove the valve
assembly from the valve casing. Wipe the valve off using the shop
rag.
- Apply oil in three locations. Make sure to do this over the
shop rag in order that excess oil does not create a mess. Replace
the valve assembly into the valve casing. Do not force it, but
turn it around in the casing to ensure even coverage.
- Trumpets only
-Turn the valve cap clockwise until you hear a *click*.
This ensures that the valve is properly aligned in the
valve
casing. The *click* is the sound of the valve guide (4a)
aligning in the casing's groove. Other brass instruments
will align this
guide visually before performing the next step. In most
cases this guide is nylon (4b) and can be easily damaged
if care is
not used.
- Tighten the valve cap clockwise until snug. The valve should
be quiet during operation. Clicking may result if the valve cap
is not snug enough.
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