Yes, I'm the clown

[jumper1961]

Long ten hour night, just got program right, I hit the reset to start from the begining. Unfortunately, the 4020 was getting the next tool. So the tool arm is rotated to the spindle and tool pot. Can anyone tell me how to get out of this mess?

[dcoupar]

You should be able to look on top of the machine. Locate the ATC drive motor. Take off the fan cover. There should be a paint can lift handle type thing that will release the ATC brake if you lift it up. Then rotate the fan slowly to turn the motor until the arm retracts to it's home position. Re-lock the brake, and you should be back in business. There might be another method outlined in your Instruction Manual, as well.

[Philm]

This should work...
1. Restore Power (It is not necessary to Zero return the machine)
2. On the Automatic Tool Changer (ATC) box at the back of machine, set switch to
manual.
3. In MDI key in M39; and press the start button. (This starts maintenance mode and
allows you to use the 2 keys for rotating the tool magazine as jog keys for the tool
changing arm.)
4. Turn mode switch to JOG
If you have a tool in the spindle make sure that the tool is unclamped (Green light on). If not, manually press tool unclamp button.
5. Using the jog keys (on the ATC box) move the tool changer arm to home position (you will have to press the key several times). Carefully watch the tool that is being placed in the spindle. Once it is in position in the spindle manually press tool clamp before proceeding otherwise the tool will drop. Finish pressing the jog key until the arm is at home position.
6. Turn mode switch to MDI
7. In MDI key in M19; and press the start button (spindle orientation)
8. Key in M41 (will complete 1 complete tool change)
9. Set APC box back to Auto.
10. Check to make sure that you have the correct tool number in spindle before
continuing.
To display tool register
Press SYSTEM ? PMC ? PMCPRM ? DATA ? G.DATA
Page to show parameters D450 & D452

D450 Head Tool (shows tool number in spindle)
D452 Next Tool (shows tool number in waiting pot)

[jumper1961]

Thanks for the help, I'll let you know if I get a chance to use it.

[dcoupar]

Glad you're hanging out here Phil. Keep up the good work.