I'm working out the details to go look at an 1100 series 3 next week, what are some important things I should look out for? Supposedly it's been used enough to have needed the axis steppers replaced and the tool changer on it has its control board fried. Not real sure what that last bit would mean for operation but apparently it makes parts just fine without that board.

Are these mills prone to wear at certain points that I can inspect? If it has backlash, can that be adjusted out?