Newholland LS 190 dies constantly

This machine dies constantly but will restart instantly, cuts off 5 or more times whole loading 2 buckets. When the toggle at the fuse panel above your right should is moved , the machine will drive to Peru but the boom and tilt will not function. I have replaced a very sloppy ignition switch,seat belt ,seat belt wire harness, ballast resistor starter saftey interlock behind the seat and repaired many wire insulation rubs looking for shorts. I am now pretty lost and need help I feel I'm hunting a short but have looked almost everywhere

Newholland LS 190 dies constantly