Shopsmith Forums

I reoiled again, separated motor sheaves by compressing spring to put more slack into belt, and tried powering up again. This time motor stayed on and I was able to turn speed control dial and vary output shaft speed. Finally! I did notice that the porkchop gear teeth are a little rough so that ...

I bought used 1986 Mark V 510. It would run at slow speed only due to idler sheaves frozen on shaft. I broke sheave trying to disassemble and ordered and installed complete replacement idler shaft assembly along with new style eccentric bushing. After cleaning speed control and installing I turn ...

OK, I took your advice and removed the complete idler shaft assembly from the machine. The contol sheave is still stuck solid on the shaft in the low speed position. I have tried using wooden wedges to drive the sheaves apart with no luck. I have sprayed the whole thing with PB blaster which is ...

I'm not familiar with what they are called, but I think both belts had been changed by the previous owner.
thanks,
Ed

I am near Greensboro, NC and just bought a used Mark V 1986 vintage and the speed control does not work. I found the wire loop was off along with the roll pin down under the motor. I got it back on but because the control sheave is stuck tight, when I start motor and turn speed control handle, it ...