Re: Rotary Care


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Posted by Rick Denney on April 10, 2003 at 22:33:50:

In Reply to: Rotary Care posted by Jim on April 10, 2003 at 20:37:51:

Congratulations on your new horn.

Get an oil applicator with a needle tip. I bought one from Baltimore Brass that has a medium-weight machine oil in it. With the needle tip, apply the oil to the gap between the front rotor casing bearing and the stop arm so that it rides down into the front rotor bearing. This is the bearing that gets the most wear.

Somewhat less often, you can unscrew the back caps of the rotors and apply the same oil to the rear bearing, which will be obvious without the cap.

The same oil will do fine on the linkages.

Squirt regular valve oil down the leadpipe and let it run down through the valves. This will lubricate the valves (which really shouldn't need it--they should not really touch the casing) and put a coating on the inside of the leadpipe which may help prevent red rot. You should not have to do this all that often either.

If after doing that the valves won't work properly, they need to be taken apart and cleaned. Get a repair technician to show you how to do it--it's not hard but it's also not intuitive.

Rick "who spent two minutes oiling his Miraphone and enjoyed it's perfect operation after two months of sitting in the case" Denney


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