Translating the manual

**Robin Hewitt** · 10-07-2012

Hmmm!

Found the safety guard circuit relays and they are truly unwell. I'm looking at 6A 3 pole c/o relays and only 2 out of 9 normally closed contacts actually buzz through.

Close up piccy shows they are full of gunge, probably plastic residue.

This isn't arcing causing the problem, most of the nc contacts aren't even used. These 6A relays drive nothing more than other relays or LED's.

Next problem, they are archaic, not listed by RS, Farnell or Rapid. Do I try and clean them or bodge in equivalents???

**irving2008** · 10-07-2012

Originally Posted by Robin Hewitt

Hmmm!

Found the safety guard circuit relays and they are truly unwell. I'm looking at 6A 3 pole c/o relays and only 2 out of 9 normally closed contacts actually buzz through.

Close up piccy shows they are full of gunge, probably plastic residue.

This isn't arcing causing the problem, most of the nc contacts aren't even used. These 6A relays drive nothing more than other relays or LED's.

Next problem, they are archaic, not listed by RS, Farnell or Rapid. Do I try and clean them or bodge in equivalents???

These are open chassis relays??? Otherwsie how did they get gunged? If the contacts are ok, I'd go for cleaning them. Can you swap to another contact pair? What relays are they?

**Robin Hewitt** · 10-07-2012

Not open chassis but still gunged. The second board has 2 similar relays, different make... 2 out of 6 contacts connect on that one.

I wonder if there are any on e-bay? I will have a look tomorrow.