The older brushed machines needed the brush's pulled and the dust blown out of the housins once or twice a year. The motor on the tool changer is the same still. Tool changer motor relays go south and start popping fuses. Never seen a spindle motor go bad, but have replaced a couple spindle cartridges on abused machines. Do not let the gearbox run out of oil, that's a 3k ouch. Thrust bearings on the X axis go out and it sounds like the screw is bad but it's notAre there any typical problems with the spindles or electronics?
Sent from my LG-H820 using Tapatalk
Most of the stuff that goes wrong on these is a couple hundred to fix if you know what you are doing.