Very interesting, very interesting, but would you kindly tell the crowd, how horns owned by professionals as well as by amateur look like after a few weeks or months ? I could tell many stories from what I have seen ...... ===========================================================
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Sunday, March 07, 2004 5:44 AM To: [EMAIL PROTECTED] Subject: [Hornlist] Re: New horn maintenance In a message dated 3/6/04 1:00:28 PM Eastern Standard Time, Michael K writes: > I just recieved my new Yamaha YHR668NDII, and was wondering if I have > to take it into the shop to get the so called "factory dust" cleaned out. > I did clean out a new 668 recently and there was some factory gunk in it, although not as much as some brands. In the US, the manufacturers used to use vapor degreasers to clean the horns, but they had to give them up for envioronmental and health reasons. Conn and Holton are using ultrasonic cleaners but apparently they're not working so well. I've done several new ones recently that were chock full of stuff. The kind of stuff left behind is abrasive so it will wear the valves out prematurely unless it's gotten rid of. Any kind of normal washing, flooding with oil etc. won't do much good. You have to take the valves out and clean the casings, bearings and around the corners where the stuff is lurking. It's not easy to get it all. It will be in such places as the valve cap threads, stop arms, at the edges where tubes are soldered together, in the valve knuckles. Any of it that's left will be loosened up by whatever valve oil you use and will run right back into the valves. As I mentioned, the Yamaha I did recently wasn't as bad, but there was some buffing compound still lurking that had gotten into the valves and was making them act badly. Finding a shop that really understands what's needed won't be easy though! - Steve Mumford _______________________________________________ post: [EMAIL PROTECTED] set your options at http://music.memphis.edu/mailman/options/horn/hans.pizka%40t-online.de _______________________________________________ post: [EMAIL PROTECTED] set your options at http://music.memphis.edu/mailman/options/horn/archive%40jab.org
