Hi, anyone help, I have a running machine not working, pretty sure its the drive motor, I've tested and left connected the 180v dc feed ( from the control board ) but didnt appear to have a neutral from the same board. I connected directly to the main neutral which then lit up my tester correctly but did'nt run the motor. One thing I did notice was a "1. ( or OL)" reading when doing a resistance check until I applied pressure on the motor brush to make better contact. Should the brushes be in contact permanantly?