Kenmore PowerMate Canister Model 116, powermate not working?

I have taken vacuum apart and cleaned it. Cleaned powermate completely. Belt is good. Switch has three settings: Off/Floor/Carpet. When I select Floor I get nothing, no suction and no power to the powermate. When I select Carpet I get suction but powermate does not work. I have also tried this with the powermate JR attachment with the same results. I put a volt meter on where switch connects to powermate attachment and I am getting Off-0v, Floor-0V, Carpet-120v which seems correct. I should be getting suction when switch is on Floor but I do not. I should be getting suction and powermate brush spinnig when switch is on Carpet but I only get suction. Anyone have any ideas on what is wrong?

Thanks,
Mark

mmilchuk@optonline.net