VPI Support

I have a VPI Signature Classic with an ADS that is giving me a few issues when I set the speed to 45.  I use two belts on the platter. The pulley and spindle have been lubed. The issues only occur when I try the 45 speed, the 33 speed work fine.

The problem is as follows:

With the ADS powered ON and the ADS start switch set to ON, and the ADS speed set to 45, and the turntable start switch set to OFF

The issue is when I depress the turntable switch to ON the platter does not start spinning.  Sometimes it starts spinning, but very slowly if at all.

Also, a continuous noise comes from the pulley area

None of these issues occur when the ADS is powered ON, and the turntable switch set to ON, and the ADS speed set to 45 and the ADS start switch is set to OFF 

When I depress the ADS start switch set to ON the platter start spinning without any issues and no noise from the pulley area.

Any suggestions on how to correct the problem will be greatly appreciated