Yamaha YSL-448G Owner's Manual - Page 13

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Oil the water key

Neglecting to oil the water key can result

in poor function of the water key.

Use a fine gauze cloth to clean in tight places.

●

Stringing the Rotary Valve

Wrap the string as shown in the illustration

below then fasten the string in place with the

small string screw. After the string is secured,

use the small screw A to adjust the lever posi-

tion.

String screw B

Lever linkage

Caring for the Instrument

■ Twice Yearly Maintenance

●

Cleaning the instrument

Prepare a brass soap water solution.

Mix 1 part brass soap with between 10 and

15 parts warm water (30° C to 40° C). Re-

move the tuning slide and slide sections

before placing the instrument in the soap

water solution.

Apply some brass soap solution to a flex-

ible cleaner and use the cleaner to clean

the inside of the instrument.

After cleaning the instrument, use clean

water to thoroughly rinse out the brass soap

water solution. After that, apply some slide

grease to the tuning slide and reassemble.

Rotor stem

screw

String screw A

* Contact your dealer when the rotary valve

needs cleaning.

Outer Slide

* Use a cleaning rod wrapped with gauze to

clean out the inside of the inner slide.

Tuning slide