[chipsinpan]

John ,
I was gone today , but I will check tomorrow where the tool home is .
That is quite odd that the control will rotate the drum thru MDI if there is no way to orient the spindle . There is supposed to be a steel plate under the belts , and mounted to the spindle . It is a steel washer about 4" in dia X 3/8 thick . It has a half circle milled out in one place . This is where the roller mounted to the end of the air cyl pops out and locks the spindle . Then the prox sw reads that the air cyl is out all the way , and tells the control to continue the tl chg .
Do you have the books for the machine ?
look up the code for spindle orient ( I think its G19 )
MDI that and see what happens.
Inside the back door of the elect cabinet there should be a machine set up book and a copy of the machine parameters on a disc.
If they installed a new VFD box , there is a long list of codes that need to be set on the box itself . I cant help ya there .
I am more a nuts & bolts guy . If you need more help with missing parameters , then I hope some of the others jump in here to help out .
I just ran over to the shop to check : M19 is the command for spin orient
utilities/tl chgr should bring up CW- CCW- HOME if yours does not have the HOME , then perhaps someone disabled it .
Scavenged it for parts maybe ? I think you have a manual tool change partner , with a tool drum to store your tools in .
Earlier I said that you need air to rotate the drum . This is not true . The moter to rotate is electrical . Only the air cyl to swing the arm is air .
CHIP