Patrick,
did you get the T73 sorted out? Martin should be able to give you a PDF manual.
i don’t know if the T73 has the oil pump for the movements or the nipples with the push oiler. You need to be consistent about the oiling. And if the saw is not hooked up to good DC you might have to do some cleaning inside occasionally.
the DC servo motors will not take much abuse, if things get dirty or no oil they will fail eventually.

I got some holes in the lower dust shroud of our tilting T26 shaper which eventually caused the DC lifting motor to fail. I was able to raise and lower the shaft with a drill and driver till the new motor arrived. We had a Felder shaper that had a electronic failure on the shaft lifting and was able to run the shaft motor with a 24 volt drill battery.