The problem I'm having with the Cinncinati Milacron Arrow 2100 is i keep getting a draw bar fault alarm, indicating that the draw bar is not fully closed/closing when a tool is in the spindle. One of the remedies for this that the machine is giving me is is to check the air supply to the draw bar. 1st i have no idea where that gauge is, and the manual doesn't specify where either or what type of oil it requires in the tank. all the proximity switches seem to be working correctly displaying that all is good. If anyone can help that would be pretty cool. Thanks!