How to change polarity manually?

[Hazelwood]

I have a Chaparral feed horn that controls the polarity of the LNB with a servo motor and the motor is bad.
I'm switching to a voltage controlled LNB but I'd like to switch it from H to V in the meantime.
I've taken the old servo motor off and there's a shaft there.
Does anyone know which way and how far to turn the shaft to switch polarity?

 

[dfergie]

Turn it 90 degrees...if you have sparklys turn a little more...

 

[Hazelwood]

Turn it 90 degrees...if you have sparklys turn a little more...

Thanks, didn't just want to start twisting on it before I asked. :

 

[colbec]

Same thing happened to me. I took off the motor and sealed up the outside with a blob of butyl rubber that remains plastic to hold the sensor in a fixed position and stop water from getting inside. With the shaft fixed I peaked the lnb and marked the outside of the lnb and the scalar ring so that I could reposition it quickly after adjusting. I now use that lnb for a satellite where I am only interested in one polarity. Works great.

 

[dfergie]

Thanks, didn't just want to start twisting on it before I asked. :

Your Welcome

 

[Hazelwood]

Same thing happened to me. I took off the motor and sealed up the outside with a blob of butyl rubber that remains plastic to hold the sensor in a fixed position and stop water from getting inside. With the shaft fixed I peaked the lnb and marked the outside of the lnb and the scalar ring so that I could reposition it quickly after adjusting. I now use that lnb for a satellite where I am only interested in one polarity. Works great.

Good idea.
I'm using a cordless drill to move it until my V-box comes in.
Just want to watch galaxy 11 V tomorrow and Sunday and I have it set on H.

 

[somery]

i have extra servo motors, if you just want one of those i'd be more than happy to send you one?

 

[Hazelwood]

i have extra servo motors, if you just want one of those i'd be more than happy to send you one?

I really appreciate the offer but I don't have a receiver that can work with a servo motor.

 

[Hazelwood]

Thanks, that did the trick.
Hope the new toys to get here soon before I wear out the ladder.