Bridgeport EZ Trak Lubrication System

I have a 1994 Bridgeport EZ Trak SX and have been trying to find information on the lubrication system. I've spent several hours on forums and the internet with very little success. What I would really like to see is a diagram of the routing and connection of the pressure fed lubrication tubing. I'm not sure, but I'm assuming that the ball screw nuts are pressure fed. I have not been able to physically see if there are lubrication tubes going to the ball nuts on my machine. The machine ways seem to be getting adequate lubrication, but the X axis ball screw doesn't seem to be very well lubricated. I'm hoping to be able to verify that the system is or is not working properly without tearing the machine apart. I have the BP manual for the machine, but it doesn't give any detailed information about the lubrication system. Can anyone point me in the right direction to find this information ?

Thanks in advance for any assistance.

Ted