Good point, John. I'd forgotten about that NA motor quirk. Here's what the dealer manual says about the motor height: "The motor height is adjustable and it is important to line up the grooves on the pulley with the grooves on the platter. Make sure the table is leveled first. If you need to raise or lower the motor, do so by pushing on the motor itself. It is snug in its housing, but it will move."
You shouldn't need to loosen the screws holding the motor to the housing to do this.
You shouldn't need to loosen the screws holding the motor to the housing to do this.