I worked industrial maintenance for several years, with nothing beyond 30-something years' experience as an auto mechanic for qualifications- - - -no formal certifications whatsoever. Along the way, I picked up experience working with 3-phase 440 volt electricity, plumbing, pipe fitting, maintenance welding, hydraulics, pneumatics, and digital machine controllers. Fortunately, I was working for companies where strict trade separation was not enforced by the union communists.
Jerry
