We may have found other answers which could help you.
Click here for Coupling Kitchenaid ReplaceMy kitchenaid professional series stand mixer won't turn on?
How to disassamble kitchenaid KSM90 mixer?
KM32 Motor Arm Jammed?
Is my motor gone on my kitchen aid classic k45?
kitchen aide mixer model k5-a mixer stuck on high speed?
Blender lights flashing and smoking?