Shaft Repair - Page 1
Forum section: electronics / repair

author: marnav1
author_rank: Contributor
timestamp: December 07, 2024, 05:07:17 pm
content: 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.

author: jpanhalt
author_rank: Super Contributor
timestamp: December 07, 2024, 05:17:42 pm
content: Pictures of what you are trying to disassemble would help.Is this item from eBay the shaft coupler?https://www.ebay.com/itm/235738638186Will generic flexible 1/8" (~3 mm) couplers work?

author: Gregg
author_rank: Super Contributor
timestamp: December 07, 2024, 06:15:16 pm
content: Without any details given by the OP, the first place I would look is McMaster-Carr:https://www.mcmaster.com/

author: Ian.M
author_rank: Super Contributor
timestamp: December 07, 2024, 07:10:07 pm
content: 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.

author: marnav1
author_rank: Contributor
timestamp: December 07, 2024, 07:44:58 pm
content: Trying to post a picture. I dont know how. Working on it.

author: jpanhalt
author_rank: Super Contributor
timestamp: December 07, 2024, 08:04:34 pm
content: 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.

author: Dougmc
author_rank: Contributor
timestamp: December 08, 2024, 02:07:46 am
content: Does it look like the 376-0053-00/384-0360-00 on this sitehttps://www.smcelectronics.com/tekpart.htm

author: Dougmc
author_rank: Contributor
timestamp: December 08, 2024, 02:25:59 am
content: https://www.sphere.bc.ca/oldsite/test/tek-parts/tek-knobs.htmlIt's on this page same as the ebay pix aboveDoug

author: timeandfrequency
author_rank: Frequent Contributor
timestamp: December 08, 2024, 09:35:56 pm
content: Hello marnav1,Could any compatible part sold byAlimatch with the broken one ?

author: marnav1
author_rank: Contributor
timestamp: December 15, 2024, 09:31:08 pm
content: 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.

author: marnav1
author_rank: Contributor
timestamp: December 15, 2024, 09:41:32 pm
content: 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.