60 amp voltage regulator burned up

[05blackduramax]

I just happen to check my voltage output the other day and it was 32.4. I did a bunch of reading and ordered a new 60 amp voltage regulator. I installed it today and still getting 32 volts with the voltage screw all the way down. The brushes looked good to me.

 

[papakb]

Turning the control potentiometer CCW increases the voltage! Turning it CW decreases it. Something else is wrong because normally you don't have that kind of adjustment range. Have you checked for AC on the output? You might have a bad diode pack that's frying the regulator. There are 2 of them inside, one positive and one negative. They do occasionally fail and are replaceable.

Make sure to blow out any carbon dust thats built up in the housing while your in there.

 

[05blackduramax]

Iam not getting any ac voltage. If I turn the potentiometer clockwise it goes to 38 volts bc. Ccw it goes to 32 vdc.

 

[05blackduramax]

Iam not getting any ac voltage. If I turn the potentiometer clockwise it goes to 38 volts bc. Ccw it goes to 32 vdc.

01.4 volts on ac to 00.5 volts ac