Mcode for Neutral spindle 520AM on Mighty Comet??

[acrodave]

Anyone know the M code to put the spindle into neutral on a Mits 520AM which is on a Mighty Comet?

The spindle is in neutral when the machine is started, but once it goes into high, or low, "gear" with an "S" command, I can't figure out how to return it to neutral when I try to indicate a hole position.

Thanks

Dave

[1000ee-monarch]

Try M40.

Often on a turning center with a 2-speed gearbox: M40 is neutral, M41 is low gear, M42 is high gear.

[acrodave]

Thanks ..... I'll try this tomorrow when I get back to the shop..

Dave

[acrodave]

well ...... M40,41,and 42 don't do anything.......

Dave