Changing from single to 2 phase

[Anguz]

Anyone got a welder something like the one below? Want to configure for 400v
I think the links need to be a and b with the 2 lives on the 2 l terminals

 

[Memmeddu]

Anyone got a welder something like the one below? Want to configure for 400v
I think the links need to be a and b with the 2 lives on the 2 l terminalsView attachment 176101 View attachment 176102 View attachment 176101 View attachment 176102 View attachment 176103

Connect both link between A and B that's said on the chart
But if you have a DMM (multimeter) you can read how many ohms you have now between the connection (230/250V ) and connect where you have the double or more ohms
I think that is the way how this works
Phase 1 on L
Phase 2 on L (exactly where the cables are)
You must only move the two brass links as that they can connect only A and B together