Title: Collins 51s-1 tuning drive shaft Post by: N9AXl on March 10, 2023, 11:19:54 AM I was cleaning this to deal with the slippage. When I reassembled
this it doesn’t seem to catch. The shaft is just rotating. I reset the backlash gears per the instruction I found here. The shaft rotates if I turn the gears inside so the gear on the shaft seems placed right on the dial gear. I’m seeing strange things on this radio. Could someone please confirm all the parts are there and the order of assembly of this is correct? I’m thinking I have to really tighten this nut to get everything correct. I attach a photo with my order of assembly from 1 to 5. It’s possible someone did a kludge repair but the Collins manual doesn’t break out this piece by part Title: Re: Collins 51s-1 tuning drive shaft Post by: AB3L on March 15, 2023, 09:26:34 PM The Collins Collectors Association website has a Manuals section in it.
https://www.collinsradio.org/cca-collins-technical-archives/collins-radio-equipment-manuals/ Work your way down to the 51-S1 section then head to section 6. On page 43 there is a blowup of the gear train. Hope it leads you somewhere! Good luck. Bob AB3L Title: Re: Collins 51s-1 tuning drive shaft Post by: AB3L on March 15, 2023, 09:35:58 PM Woops, sorry, didn't see that you have been here already!
Title: Re: Collins 51s-1 tuning drive shaft Post by: N9AXl on March 15, 2023, 09:58:03 PM Thanks. I did get that figured out. Of course, I now AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
have five other problems with this I’ll need to work out. I documented everything on the Collins Radio Collector Facebook page for anyone interested. |