[Collins] 30L-1 advice needed
Dr. Gerald N. Johnson
geraldj at weather.net
Sun May 8 10:11:44 EDT 2011
Usually wafer switches with the double flatted shaft have a notch in the
flat on once side of the hole only, used for alignment when pulling the
shaft like in a 32S or 75S. I'm not sure that's the case in the higher
power switch wafer in your picture. I have not been into a 30L-1 so I
can't be sure that is a help. Perhaps you can visually see the switch
wafers and circuits at an extreme band, 80 or 10 and match them there
and adjust the coupler. Typically the set screws in the coupler would
rest on a flat. If you pull back the coupler you should see the mark
from the end of the setscrew also, match those to the coupler.
73, Jerry, K0CQ, Technical Adviser to the Collins Radio Association.
On 5/7/2011 9:28 PM, frankshughes at aim.com wrote:
>
>
> Hi,
> I fixed the power switch in my 30L-1!
> It had become "welded" in the "ON" position.
>
> Took it apart, polished the contacts smooth again, ready to go.
> http://i180.photobucket.com/albums/x257/fish1_07/rocker_switch_side.jpg
> http://i180.photobucket.com/albums/x257/fish1_07/rocker_switch_top.jpg
> http://i180.photobucket.com/albums/x257/fish1_07/spring_loaded_wipers.jpg
> http://i180.photobucket.com/albums/x257/fish1_07/fixed_contacts.jpg
> http://i180.photobucket.com/albums/x257/fish1_07/movable_contacts.jpg
>
>
> But I subsequently caused one problem that I can not find the solution for in the manuals or schematics.
>
> I had to take out the band switch& associated linkage to get to the power switch.
>
> http://i180.photobucket.com/albums/x257/fish1_07/bandswitch_shaft.jpg
>
> I managed to get the front band wafer switch out of sync with the matching wafer switch in the back of the chassis.
> The front and rear switches connect via a fiberglass shaft and coupler.
>
> There must be a procedure for re-synchronizing these, but I just can't locate it, can anyone please provide some guidance?
>
> 73,
> Frank
> KJ4OLL
>
>
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