I recently purchased a Bridgeport Series II Interact II w/ a Heidenhain TNC 151 CNC control. Everything is in great working condition but I am not able to start the spindle or adjust speed by use of the NC control. I can manually start the spindle and adjust the speed by the manual switches on the mill, but not with the NC control. I can stop the spindle from the NC control (M5 command). When I command the spindle to start (M3) a solid * will appear in the program line and then will begin to flash.
I have a feeling that there is an issue with the oiling system (Interlube, SIEBE) which is not allowing the system to go into a valid operating mode. The pressure gage on the oiling systems indicates that oil pump does not actuate on start up of the machine. I am assuming that the oiling system should actuate on startup before it is allowed to go into a normal operating mode. When I manually actuate the pump the system will hold pressure and then bleed off which appears to be correct. Does this make sense as to why the NC control will not allow the spindle to start if the oiling system is not working properly?
Any help is greatly appreciated.