NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Cleaning and protecting my Freiberger
From: Renee Mattie
Date: 2004 Aug 31, 20:37 -0400
From: Renee Mattie
Date: 2004 Aug 31, 20:37 -0400
Ken Gebhart wrote: > Under the heading of not doing anything dumb, I would > recommend not doing two things. > Do not take the arm out of > the frame, or move any screws associated with this area other > than removing a cover to apply lubricant. > Final assembly is done in the factory with the sextant on a > testing machine. > Set screws are adjusted to center the pivot exactly during > the test. Thanks for this warning. One would think, looking at the cover of Bruce Bauer's "The Sextant Handbook", that removing the arm from the frame is OK. > The other area which I would not disturb is the > worm gear, other than to clean and lubricate. I have always > found that to disassemble and re-assemble any kind of gearing > invites the prospect of mismatching of teeth or axes which > results in high and low spots of tactile feedback, new wear > patterns, or other mysterious results that just don't seem right. Thanks for this warning, too. Are you saying that it would be a bad idea to remove the drum from the arm for cleaning, or just that it would be a bad idea to take apart the innards of the drum?