We have a 1986 slant turn 30-atc m/c with a T3 controller. We have revived after a 7 year slumber. When we put in a M3 or M4 command in MDI the spindle starts up no problem but when we try to run a simple program it will not start up. The program hangs but when we put it in dry run the X & Z will move to complete the program. No Alarms!!! Any help would be appreciated.