Exam Tables & Chairs Forums

Updated  Nov 17 2025
2 Replies

Hi all. Was doing a shroud replacement on one of these. Upon adjusting the height to get the shroud (which was pretty crunched) started hearing a grinding noise, then a bit of a pop. 

Looks like the actuator is still working, the worm gear still moves when triggered, but the base no longer moves. Seems like the collar that the worm gear engages may have snapped. 

I've replaced the entire motor and actuator on these when they've gone out, but this one still seems to be fully functional. 

Question: is there a replacement for just the cuff/collar or even the gear portion or does the entire thing need to be swapped out? 

Question 2: Is this common? I've done the shrouds multiple times and haven't experienced it. It didn't seem to take much force as in I only lowered the table about 2 inches and it went. 

Any input is appreciated, thanks!   

Equipment: Midmark 626 Exam Table

RE: Midmark - 625
Updated  Sep 18 2025
1 Reply

I have an MPI 1111 HUT and everything is working, but the table height. I can hear the column attempt to move up and down when I press the hand controller (leading me to believe it isn't the hand controller), but then there is no movement. Any ideas?

RE: Medical Positioning - RR Hut Table
Updated  Sep 9 2025
6 Replies

I have a unit, recently replaced base motor & now foot rest sounds like it is engaged, but foot rest is stuck in up position.

RE: Midmark - Ritter 75 Evolution
Added  Sep 9 2025
0 Replies

I have a unit that sounds like it is engaging, but foot rest is stock in “up” position. Dices?

Equipment: ritter 75

RE: Midmark - Ritter 75 Evolution
Updated  Aug 7 2025
2 Replies

Looking for hydraulic pump replacement

Equipment: Midmark 119

RE: Midmark - 119
Updated  Aug 5 2025
5 Replies

Hello, I'm trying to replace one of the smaller parts on the arms. 
Is there any service manuals or parts list for these beds beyond the big add-ons?

RE: Biodex - Echo Pro
2 Replies

Good morning, I have a midmark 224 exam table that is in the down position and won't elevate with the foot remote. This is a "wired" remote and plugs in. I used the foot remote on another working exam table and the remote elevated and lowered with no issues, so I disregarded the need for a new remote. I raised the bed manually with my drill and 5/16th and replaced the "Base up", "Base down" and the "limit switch".  When I plug the power cord back in, I hear the beeps from the control board. Then as soon as I plug in the foot control, the bed automatically lowers without me pressing any button. when I removed the foot remote, the lowering stops. Anyone have this issue before.

Equipment: Midmark 224 Exam table

RE: Midmark - Ritter 223
2 Replies

We have a Biodex echo exam table that is working well except there is a creaking/sqeaking sound when raise lower the bed. The sound seems to be coming from the hydraulic piston when at certains levels raising or lowering the bed. 

A new bed is not an option. 
I will assess again for other areas of metal on metal that need white lithium grease.

Thoughts on a minimal amount of white lithium grease to the hydraulic piston? Based on what I read elsewhere on Medwrench, this is not a good choice?????

Thank you. 

RE: Biodex - Echo Pro
Updated  Jun 12 2025
1 Reply

leak on foot cylinder - any advise on repair?

Equipment: ritter 75-015

RE: Midmark - Ritter 75 Evolution
2 Replies

So the chair will not go up or down using either the hand or foot switch - pulled of the back floor cover - and the error code was 02 03 - I removed the lower seat upholstery and cover - but I do not see any number - is there somewhere else I should look to narrow down the problem

Equipment: MIDMARK 630

RE: Midmark - 625

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