I have a SL 500 that will not run. It was purchased new in 1983 and is the latest version of this model. It differs from those sold in England in that it is designed to operate on 208V 3 phase power vs 440V. I have a diagram for the 1970's English version but mine is quite different both physically and electrically. I purchased the machine from a school after it had been removed from service, so I don't know its history. I suspect an interlock problem (it uses up to 5 of them) and need a wiring diagram to trace it. Older versions used a specific color for the entire interlock circuit (violet, I believe) but this one has all red or black wiring. Anyone out there have a diagram?
Thanks, Monty