Broken stud terminals on Mulitplus-II

Hi All

I have recently experienced broken stud terminals on the Mulitplus-II 8kVA and 10kVA 48V 230V units. When tightening the nuts with a torque wrench the AC studs break almost with no force.

I see there is a lot about this in the old forum:
https://communityarchive.victronenergy.com/questions/42235/multiplus-ii-battery-terminal-bolt-snapped-sheared.html

Any else seeing this?

Yes. Just happened too me on a 48v/8k. What was your resolution please?

Had to pay to have it repaired.

@munga It could be that the torque wrench is not properly calibrated. Did you check before first use and depending on frequent use do so once in a while?

It happened to me just yesterday as well.

I’m wondering if there’s a DIY fix for this issue.

My problem looks exactly the same as in the pictures shown in the community archive (see the first post in this thread).

Is it correct that the threaded section of the M6 screw — the part that shears off — is simply screwed into an M6 nut that’s glued to the board?
If so, it should be possible to unscrew and replace it fairly easily, right?

Or is there actually a screw head on the reverse side of the board that needs to be removed instead?

Thanks in advance for any input!

It is really do you have the tooling. 100w soldering iron won’t be able to remove the stud. It is well soldered at the back of the pcb. Also the stud is not the normal one you can get from a hardware store.

Not glued unless something has changed from the last one i looked at