unimig 3003si information

[paulpic]

Hi all.
I bought a 2nd hand unimig 3003is (415v) and all works ok.I just have 2 questions to ask and hope somone can help me.
1. At the bottom on the left side of the machine there is 2 sockets for earth clamp to connect to,What are the differences in the socket i dont notice any difference when welding
2.Would anyone know where or if electrical dwg are available

 

[GrahamGKD]

Hi,
For the earth socket question, have a look at this thread:

http://www.mig-welding.co.uk/forum/showthread.php?t=22818&highlight=inductance

I'm guessing your two returns are high and low inductance (in fact the thread linked to from the one I linked to mentions a unimig)?

Graham.