Kit tool changer arm stuck in mid stroke

[new2kit]

Another problem with our Kit MyCenter2. While doing a tool change our arm has gotten stuck in the mid position, and I can not figure out how to reset.
The machine will not let me zero return axis when I first fire it up. Also the screen displays the letters MT after I try to excute an M6
Does anyone know how to reset the tool change arm?
thanks in advance for any input!

[Eric MFG]

This is a tricky one to fix.
Make sure your Z axis pulse in coder is working. Make sure the tool arm is not stuck on the spindle nose. If so you will have to pick the Z up a bit.

You will have to go into your parameters and also trick the tool change position proximity switches that the tool change operation is in its home state.
(1) On my machine I have to change address (467) from value 0 to value 1. The NC will alarm that’s OK.
(2) Stick a steel object in where the proximity switch is located in the tool change mechanics. The LED on the switch should turn on when the switch is closed.
(3) Above the tool change ARM there will be another proximity switch you will need another steel object to close that switch as well. Use something long don’t want to lose a finger.
(4) Put the machine in Jog mode and jog the arm home.

[agood01]

If you go into maint mode you should be able to jog the arm back into position. Check to see if there are chips around the home position sensor that makes it think it is in home pos.

[DSIF]

Tape a penny on the prox switch and jog the arm through the sequence back to home. Get the book out for the proper sequence steps. You may have to reset the tool numbers back to normal after you get done with the mechanical mess.