i have a 1997 cincinnati arrow 500 ,my issue is when i turn on the machine the system loads fine ,after control loads i press machine on button the contactor drops in for about three seconds and drops out ,i then get the alarm 39-99 spindle drive fault ,i had all the drives rebuilt by mike kilroy even had him double check all came back all a ok, i have been working on this machine for years trying to get it going i cant tell you how frustrating it is,has anyone experienced this befor maybe give me a direction to look in,the alarm says to look for a overloaded spindle motor or the regen resister is fault or spindle drive is faulty ,is thair any reset on the spindle motor ,is thair a way to check the regen resister, i sure would be greatfull if some one could steer me in the right direction