firemanmike69
Silver Member
I still don't see how disconnecting the batt isolates the PCM from the welding voltage??? It disconnects it from the batteries 12v, but the PCM still has wires hooked to the chassis and various other sensors that may be conducting the welding voltage
Just did some welding on a brand new paver at work with the factory rep from Sweden, his words were " when you weld on my machine you will disconnect battery shut off switch and remove harness from machine controller" that would eliminate any way that stray voltage could find the control computer and damage it. On the other hand on our other equipment it is also the manufacturers recommendation that the controllers be separately unhooked and we never do that, just unhook the batteries and weld away with no problem