Linear actuator limit switch replacement/repair

[Sunny Sarkar]

Linear actuator spec.: 400mm stroke, 6000N, 2 limit switches, 5mm/sec, 12V DC supply, BIBUS IP65 casing.

One of the limit switches of my LA (Linear Actuator) seems to have burned out. This happened because I accidentally plugged the LA leads into the AC mains socket (my LA is rated to run at 12V/24V DC). I could guess which limit switch burned-off from the way the relay erratically turned on-off everytime I reached one end of the LA. I would like to know the best way to replace the limit switch at the top-end. I've attached a pic showing the IP65 motor cover off. I want to seek advice before I take any of the motor screws off. How do I reach the limit switch at the top-end of the LA?

And some tips on where I could buy a replacement limit switch would help a lot.

Pics are in attachments.
Thanks!

 

[larry_g]

With the information given I'm coming up with nothing. Your going to have to get to the manufacture probably to get the the information your seeking.

lg
no neat sig line

 

[Sunny Sarkar]

With the information given I'm coming up with nothing. Your going to have to get to the manufacture probably to get the the information your seeking.

lg

So, I managed to disassemble the linear actuator. I'm attaching the pics and marked the limit switch along with the IC present on top of it.
The IC is a passivated rectifier and has the label "S2M MIC" inscribed on it.

The zippy limit switch (push button) has the following inscribed on it:
" 1. 5A 125VAC 2. 10A 250VAC".

Along with my interest in knowing how I could repair the limit switch, I'm more curious on how this electric actuator works. I'm guessing the lead screw is hidden inside the shaft?
Lot of questions and I want this thread to be useful to anyone interested in Linear actuators.