I have a Hardinge, Cobra 42 with a Fanuc 21-T Control. It uses a MagneTek GPD 505 Spindle drive (which failed) I sent that drive off for repair , but was informed that it was unrepairable. We were offered a rebuilt one which we purchased do to the price and long lead time of a new one. We installed it and it seems to be working just not properly like the parameters are not set right. Does anyone out there know what the user parameters for this spindle drive and machine should be ?