Make that Z223, not Z2223. Thanks, Barry - N4BUQ
On Wed, Sep 4, 2024 at 9:26 AM Barry Scott <[email protected]> wrote: > Well, I don't quite know how it happened, but I can no longer get all the > cams properly aligned. As I mentioned, I've removed the VR counter so > that's one point of reference that I no longer have. > > I had been rotating the MC change gear one click or two and then back and > no problem; however, I think I lost track of which way I had rotated it and > now I can't get back to where 2.000 would normally be displayed by the > counter. > > I'll mention that I've kept the Green Gear in place and, contrary to my > previous comment, that gear does indeed keep the MC and KC gears > synchronized and, given that, I don't know how they're no longer where I > can get them back in sync. > > According to the manual, as part of the complete gear teardown and rebuild > (which I still have not decided to do), one is supposed to be able to > rotate the MC gear CW (which I presume is taken to mean "CW as viewed from > the rear"), until it hits a stop point and then, back up to the nearest > notch which should correspond to 0.000. My presumption is that if I back > off to the 3rd click, that should correspond to 2.XXX and rotating the KC > shaft should eventually get the gears (and cams) in the 2.000 position. > > I found that there is something that causes a "stop" at full CW and full > CCW. I think that stop is happening as a function of the Geneva mechanism > and not the 10-turn stops (which aren't engaged when the RF deck is > removed); however, CW or CCW still won't let me get the gears/cams in their > proper setting and am wondering if I'm now truly "stuck". > > Any help is appreciated. > > Additionally, to avoid getting the transformers' cores wet, I'm removing > the slug racks and transformers while cleaning the gears and, right off, I > found that one of the slugs (for Z2223) was broken. I'm sure that didn't > help performance any. I have it CA glued back together so that should help > when I get this all reassembled. > > Thanks again, > Barry - N4BUQ > > > On Mon, Sep 2, 2024 at 5:55 PM Barry <[email protected]> wrote: > >> While I have the RF Deck out, I'm going to clean and lubricate the gears, >> rollers, etc. Reading the manual, apparently the from "apron" of the gear >> train can be removed without all that much difficulty. If I remove that >> apron, do the gears stay with the main part of the deck or does some of >> them come off with the apron? >> >> I'm asking because, while I'm still considering a complete teardown >> (which is just a bit more daunting than the A model which I've done >> before), it might be good enough if I can maximize the exposure of the >> gears and just settle for cleaning/lubing them in situ. Any comments on >> that? >> >> Thanks, >> Barry - N4BUQ >> ______________________________________________________________ >> R-390 mailing list >> Home: http://mailman.qth.net/mailman/listinfo/r-390 >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[email protected] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > ______________________________________________________________ R-390 mailing list Home: http://mailman.qth.net/mailman/listinfo/r-390 Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
