No credit until you take the quiz next period, Bruce. Ron L
-----Original Message----- From: phono-l-bounces at oldcrank.org [mailto:[email protected]] On Behalf Of BruceY Sent: Tuesday, July 15, 2008 3:44 PM To: Antique Phonograph List Subject: Re: [Phono-L] AB's and gear oiling I never imagined that my ill-begotten terminology would generate such a remarkably detailed response. Thanks for the advanced education seminar on the proper lubrication standards of the "Talking Machine". I hope to receive at least 3 continuing education credits for attending this course. Bruce ----- Original Message ----- From: "Greg Bogantz" <[email protected]> To: "Antique Phonograph List" <phono-l at oldcrank.org> Sent: Tuesday, July 15, 2008 3:29 PM Subject: Re: [Phono-L] AB's and gear oiling > The issue with using oil or grease on metal parts is whether it dries > up > and gets sticky over time. This can be especially detrimental on very > low-torque mechanisms such as the escapement or verge of a clockwork. > Also, oiling must be done with the right formula when applied to > non-metallic surfaces such as the fiber gears on some phonographs. Some > people prefer not to oil fiber gears at all. Some fiber gears are > designed > to run dry if they mesh with a highly polished worm gear. But high-torque > gears such as the winding gears where the crank shaft meshes with the > spring > barrel and the output or bull gear on the spring barrel on phonographs > should be lubricated with a heavy oil or grease. These are often > steel-on-steel gears. I restore both clocks and phonos and I usually > grease > the high-torque gears on the spring barrel of phonos and use a 20 weight > or > so oil on all the other metal gears, including the high-speed governor > gears > and pivots. I actually use a mixture of petroleum oil and a PTFE additive > such as "Slick 50" for my middle weight applications. The PTFE works > especially well on sliding surfaces such as the ways that support the > reproducer on cylinder phonos. Sliding surfaces lubricated this way hold > their lubricity for a very long time. > > Clocks have considerably lower torque in their spring barrels, so a > medium weight oil is all that's necessary on them. Then I oil the pivots > and higher speed gears with a very light clock oil. These oils are > designed > not to gunk up and won't get sticky. I do not oil the escapement > mechanism > at all, whether pendulum or balance wheel type, although I do oil their > pivots with the light oil. > > I agree that 3-in-1 oil is not good for these purposes. And WD-40 is a > BAD idea as it gets sticky quite quickly when the solvent evaporates from > it. > > Greg Bogantz > > > > ----- Original Message ----- > From: "Ron L" <lherault at bu.edu> > To: "'Antique Phonograph List'" <phono-l at oldcrank.org> > Sent: Tuesday, July 15, 2008 3:03 PM > Subject: Re: [Phono-L] AB's and gear oiling > > >> Why would oil "ruin" the phonograph? Is it an issue of uneven wear with >> dissimilar materials? >> >> Ron L >> >> -----Original Message----- >> From: phono-l-bounces at oldcrank.org [mailto:phono-l-bounces at >> oldcrank.org] >> On >> Behalf Of Rich >> Sent: Tuesday, July 15, 2008 2:29 PM >> To: Antique Phonograph List >> Subject: Re: [Phono-L] AB's and gear oiling >> >> You do not oil gears except in special cases. Many people are not >> swayed by sound engineering practices and proceed to ruin good >> phonographs. Clocks have brass meshed with steel and so do most >> phonographs. IF you find similar materials meshed with each other then >> an extremely light coat is beneficial. Use a synthetic oil or a clock >> oil. The 3 in 1 oil is crap. >> >> Mike Stitt wrote: >>> The recent thread about the AB MacDonald brings up a good question. >>> Among >>> the many things I collect includes clocks. Now in the world of clocks >>> you >>> never oil gears, no and no. Should you oil gears in phonographs? Would >> the >>> higher rate of speed of the governor be a rationale? Would the presumed >>> higher loads from a larger spring dictate oiling? I do and have oiled >>> phonograph gears. Should we? And break the clock rule? >>> Mike >>> _______________________________________________ >>> Phono-L mailing list >>> http://phono-l.oldcrank.org >>> >>> >> _______________________________________________ >> Phono-L mailing list >> http://phono-l.oldcrank.org >> >> _______________________________________________ >> Phono-L mailing list >> http://phono-l.oldcrank.org > > _______________________________________________ > Phono-L mailing list > http://phono-l.oldcrank.org _______________________________________________ Phono-L mailing list http://phono-l.oldcrank.org
