Yamaha YOB-431 Manual do Proprietário - Página 11
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■ Twice Yearly Maintenance
●
Cleaning the Instrument
1.
Prepare a brass soap water solution using
between 10 to 15 parts warm water (78°F to
88°F) and 1 part brass soap. Before putting
the instrument into the solution, remove the
valve slides.
2.
Apply some soap water solution to the brush
on the end of flexible cleaner and use the
cleaner to clean the inside of the instrument's
tubing.
3.
After cleaning the instrument, use clean
water to thoroughly rinse out the dirt and
soap.
Maintenance
4.
After completely removing all moisture with
a gauze, apply oil and grease.
Take Care When Cleaning Inside of the In-
strument
Never dismantle the rotors. Also, when rinsing
the tubing with water, run water through the
main tuning slides in the opposite direction of
the airflow. If water is run through the instru-
ment from the mouthpiece, dirt can become
clogged in the valves causing the valves to be-
come sluggish.
5.
Apply some soap water solution to a mouth-
piece brush and insert it into the throat to
clean the mouthpiece, then thoroughly rinse
it out with clean water.
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