Rotor Maintenance; Valve Slide Maintenance - Yamaha Cornets Owner's Manual

● Rotor maintenance
(Rotary trumpets only)
1.
Remove the rotary valve cap and apply some
rotor spindle oil to the place to the spindle
in the center of the rotor.
Rotor spindle oil
2.
Apply some rotor spindle oil to point where
the rotor rotates. Replace the rotary valve
cap and move the lever a few times to dis-
tribute the oil evenly.
3.
Apply some lever oil to the lever shaft.
Lever oil
Maintenance
● Valve slide maintenance
1.
Apply a thin coating of slide grease to the
main tuning slide, 2nd valve slide, and valve
slides that are not equipped with a slide trig-
ger.
2.
Slide the main tuning slide back and forth a
few times to distribute the grease evenly.
3.
On the 1st and 3rd valves, which are
equipped with slide triggers, apply a small
amount of tuning slide oil to the tuning
slides.
Tuning slide oil
3rd Valve Slide
Slide grease
Main tuning slide
Main tuning slide
Apply here.
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