DIYAPASON-L Digest #872 - Tuesday, September 2, 2003
 
Blower Reassembly
  by <Kzimmer0817@aol.com>
Re: Organ Report - Stoplist in Stone
  by "Larry Chace" <RLC1@etnainstruments.com>
RE: [Residence Organs]  Blower Reassembly
  by "atos" <atos@stirlingprop.com>
 

(back) Subject: Blower Reassembly From: <Kzimmer0817@aol.com> Date: Tue, 2 Sep 2003 22:12:53 EDT   Guys,   The following is a quote from the Blower Rebuilding page: (http://atos.stirlingprop.com/kbase/century/blowerrestor.htm)   "The shaft seal has four basic parts(picture shaftseal.jpg). The part on = the left is the gasket that goes against the blower plate. The second part = from the left is the steel plate that makes up the blower side of the seal. The = third part from the left is the actual shaft seal. It is made of course hair = felt that is very hard. It does not rotate with the shaft. The last part is the =   steel plate that makes up the motor side of the seal. On the motor shaft = there is also a hard leather disc that help keeps any air that does get past the = shaft seal from getting into the bearings (shaftseala.jpg). This disc rotates = with the shaft. On this blower there are actually two discs."   1. I guess I'm wondering what the first gasket is made of. I tho't it = was thick felt as well. Can anybody give me the kind of felt (thickness and = other parameters) that one tends to use for these seals?   2. As I removed the dividers, the edges appeared to have felt on them as well. This site doesn't say anything about replacing the felt. Can = somebody help me here - again, with specifics.   Sincerely, Keith      
(back) Subject: Re: Organ Report - Stoplist in Stone From: "Larry Chace" <RLC1@etnainstruments.com> Date: Tue, 2 Sep 2003 22:45:40 -0400   Keith Zimmerman's project seems to be making good progress. Enlisting "professional help" (Rich Schneider, in this case), is probably a very = wise choice. I know that he can do fine things with "experienced" pipework.   While Keith says that the stoplist is "cast in stone", I'd like to wonder out loud about that Dulciana that isn't going to be used -- might it be a possible addition to the Great, something nice and gentle for quite practice or for accompanying small Swell combinations? (I had an opportunity recently to hear just how useful such a stop can be in the context of some religious services, though I understand that Keith's instrument won't have that particular application.) I've always thought that it might be interesting to try using a Dulciana as a soft 8' and also as a sorta kinda principal-ish 2' (especially if the rank is voiced with some rise in volume towards the top).   A comment about SAMs -- Reisner units, at least their older ones, use the metal frame as a common point for three things: the ON magnet, the OFF magnet, and the movable contact. That means, in most cases, that you have to feed +12v (or whatever) to the frames, and so your combination action has to pull the individual magnet lines down to ground in order to move = the stoptabs, so you should check that your intended combination action can do so.   If you use the nice metal mounting strips that Reisner made, then you need to be careful about the use of fuses (in order to comply with the NEC). Again, depending upon the details of your combination action, you might want to have no more than 8 or 10 or so SAMs mounted on a common frame (and, therefore, being feed from a single fuse).   It is possible that newer Reisner SAMs don't have these problems. (The = 132 of them in my console, however, *do*! Groan...)   Larry      
(back) Subject: RE: [Residence Organs] Blower Reassembly From: "atos" <atos@stirlingprop.com> Date: Tue, 2 Sep 2003 22:16:05 -0500   Here is the address of Phil Underwood, the person who wrote the article. mozart@liljasper.com I don't know if he monitors this list but I have cc'd him so he is aware = of your question.     John DeMajo President - ATOS-SMGC Chapter   -----Original Message----- From: DIYAPASON-L@pipechat.org [mailto:DIYAPASON-L@pipechat.org]On Behalf = Of Kzimmer0817@aol.com Sent: Tuesday, September 02, 2003 9:13 PM To: diyapason-l@pipechat.org Subject: [Residence Organs] Blower Reassembly     Guys,   The following is a quote from the Blower Rebuilding page: (http://atos.stirlingprop.com/kbase/century/blowerrestor.htm)   "The shaft seal has four basic parts(picture shaftseal.jpg). The part on the left is the gasket that goes against the blower plate. The second part from the left is the steel plate that makes up the blower side of the = seal. The third part from the left is the actual shaft seal. It is made of = course hair felt that is very hard. It does not rotate with the shaft. The last part is the steel plate that makes up the motor side of the seal. On the motor shaft there is also a hard leather disc that help keeps any air that does get past the shaft seal from getting into the bearings (shaftseala.jpg). This disc rotates with the shaft. On this blower there = are actually two discs."   1. I guess I'm wondering what the first gasket is made of. I tho't it was thick felt as well. Can anybody give me the kind of felt (thickness = and other parameters) that one tends to use for these seals?   2. As I removed the dividers, the edges appeared to have felt on them = as well. This site doesn't say anything about replacing the felt. Can somebody help me here - again, with specifics.   Sincerely, Keith