The type of rotor oil used is important to how well your rotary valve works. Here are a few tips to

help with your oil selections.


1. Not all rotor oils are the same. Use high quality rotor oil. We recommend and use the

Hetman line of oils in our shop.


2. Use oils with n...

Disassembling Thayer Rotary Valves


1. Prepare a clean, soft, lint and dirt free area to work.


2. Remove hand slide and all tuning slides and place bell in work area.


3. Remove all screws and/or strings connected to lever and linkages (note: do not remove the

lever from...

If cleaned often, a simple soap and water cleaning should be enough to maintain a properly working

rotor (we recommend twice a year). Over time, a rotor will develop build up which will result in poor

action. If your rotor has not been cleaned recently, first take your i...

Disassembling a rotary valve is necessary to properly clean and maintain its functionality. Some

players may be nervous about removing a rotor, but quickly become more comfortable with a little

practice. Rotors should only need to be removed for cleaning once or twice a...

Oiling Rotary Valves


Areas which require oiling on a rotary valve.


1. The Rotary Valve Body can be oiled through the shortest tubes leading to the rotor casing. This

is often done through the bell/slide receiver.


2. The Rotary Valve Spindles are oiled in two places (not...

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