Hi Eddie 49, thanks for all of your help.
I have contacted Schneider technical, spoke to Andy Hinckley, who is very knowledgeable on contactors.
He checked all the details on the original and cross referenced it and found it is an ac coil shown by the frequency of an ac voltage.
I have just...
Cross Reference Has anyone tried these as replacements CA 3-12 contactor
Suggested Replacements For Obsolete Sprecher + Schuh Products
Contactors
Description
Date Obsoleted
Suggested Replacement
CA1(U) Contactors
03/1992
CA7...
my contactor is the same as Motorcyclist has shown in his photo, thanks Eddie49,I can't find anything to determine whether its ac or dc.This is the information on the new contactor I fitted which causes the chattering
Can anyone advise where I can purchase a dc one'
Thanks eddie49 and all for your response, this migwelding site is superb.
I will double check the contactor I have fitted and see what its got on it and let you know later.
Thanks to all involved for your advice, after checking the circuits as advised by Eddie 49 and making a new bush for the variac controlling the voltage all seems to be working.
When I tested the diodes the right one was0.6 the left one was 0.47 I hope these readings are ok.
Again thanks for your...
Thanks for your help.
I removed and tested the two diodes on the aluminium plate and got no reading either way.
When I hold in the contactor in nothing happens, I will have another look while testing using your advice.
sorry to seem ignorant, down to no experience, can you tell me which is the rectifier?
Also have you any idea where I can purchase new brushes for the rheostat
Sorry to be a nuisance, yet again.
everything seems to be working now contractors wire feed and gas but I now find I have no spark, any suggestions please.
Removed the plastic case and held in relay, wire feed roller continues to work but contactor drops out, but roller continues to work without trigger pulled in. Tried new relay still the same as original fault