Re: It Took Me Two Months to Tighten a Nut!
Reply #3 –
Sometimes the problem is almost impossible to diagnose.
I designed and built a machine for a customer. After installation and runoff the machine would run fine--for awhile. Then a forklift would go by and the machine would quit. After their electrician checked the machine it would run for awhile.
Cold spell? The machine would quit. Got so bad the customer wanted to return the machine ($300,000+).
Me, not being an electrician, went to the customer and started tugging on the wires in the electrical control cabinet. (of course I turned the electrical supply off first!)
After tugging on about thirty contacts I found the problem! Their electrician would check the tightness of all the set screws each time he went in the cabinet. But he missed one point where there were two wires in the same terminal block, and the set screw was tight on only one wire so the other wire was loose and causing the problem thru intermittent contact.
It seems that tugging on each wire can aid it the search for a solution. Reliance on a fastener may not be the answer when looking for the solution to a problem.
Glad you found your answer.