Shaft Repair

[marnav1]

Hello Friends,
Looking for the hard to find shaft coupler 376-0050-00/0051 (they are very similar) for a Tek T935a unit. Also would like to clean those stepped switches in the input section (ChA and B) but how to get the covers off? I see some nuts but I dont see how to access them, not sure how Tek managed it. Any help would be appreciated thanks.

[jpanhalt]

Pictures of what you are trying to disassemble  would help.

Is this item from eBay the shaft coupler?
https://www.ebay.com/itm/235738638186

Will generic flexible 1/8" (~3 mm) couplers work?

[Gregg]

Without any details given by the OP, the first place I would look is McMaster-Carr: https://www.mcmaster.com/

[Ian.M]

That looks like to notched metal collars with grubscrews, round the ends of a piece of plastic with two bushings to fit the shafts with a cranked flexture joining the two halves.   The metal collars are very unlikely to be broken so its likely that you can simply model the plastic part, taking measurements from the broken original and 3D print a replacement, preferably in a tough flexible material like PETG.

[marnav1]

Trying to post a picture. I dont know how. Working on it.

[jpanhalt]

Are you using a desktop/laptop?  I don't know how to use a smartphone.

You need to save the picture to a suitable location, like desktop or other folder.  Go to "attachments and other options."  Select choose file.  Default is end-of-post  expandable thumbnail.  That is the simplest.  You cannot simply cut and paste, but you can try dragging it into the area shown in attachments.

[Dougmc]

Does it look like the 376-0053-00/384-0360-00 on this site
https://www.smcelectronics.com/tekpart.htm

[Dougmc]

https://www.sphere.bc.ca/oldsite/test/tek-parts/tek-knobs.html
It's on this page same as the ebay pix above
Doug

[timeandfrequency]

Hello marnav1,

Could any compatible part sold by Ali match with the broken one ?

[marnav1]

I actually found a coupler. Trying to post a pic of the board I'm working on so I can clean the switches. There is an aluminum cover that needs to be removed, I cannot see how Tek put it together. Will post when I figure the pic out.

[marnav1]

Here is the board. How to remove those covers? I can include more pics if needed, but there is no room to loosen the bnc connectors or the other nuts. I'm curious to know how Tek managed it.