Check the oil, then disconnect the pressure switch so it can’t shut it down. I would also test the oil pressure with a gauge before disconnecting the switch. Take a good look at the wire, if it shorts to ground, that would shut it down.
3M Speedglass is what I use. Nice big windows and side view works well with my progressive glasses . Works for scaling slag and grinding as well as welding. It was on the pricey side, but well worth it in my opinion. It replaced my 40 year old Jackson which was fine until I got older and needed...