Servo motor broke, great.

[coinmaster32]

I seem to go through these like socks. This is my 3rd one in 1 year. I walked up to the dish and the motor on the servo as just spinning, does anyone have an extra?

 

[putney]

yep! are you nearby?

 

[greg47]

Unless your a channel jumper and use the channel change button hard you should not be going through that many servo's. As a former Bud dealer my experince has shown that servo's going bad like that typically means the feed is not positioned correctly on the dish and the servo's is having to work harder to keep correct polarity. I was a channel jumper, and I always got at least 3 years on my servo's.

 

[tdti1]

My first servo lasted the life the the c-band only feed, and was still working when I swapped it out with a c/ku feed, that was good for years then I swapped it for a wideband c/ku feed, this one had a defective servo died in a week, swapped it out and been running for the past 3-5 years or so? You should not have this problem, something is very wrong there.

 

[Cadsulfide]

Any binding, or stickiness in the the bushing the feedloop goes through?

 

[turbosat]

Servo motor is burning up because it sounds like its running against the stops, aka improperly positioned feedhorn. Some of the old analog receivers keep power going to the servo motor, and if its already skewed to 90degrees one way or the other, it'll sit there and keep trying to move the probe, eventually to its demise. Twist the feedhorn so the little arrow on the polarity motor housing is lined up with your north/south axis of the dish at true south.

 

[coinmaster32]

I did. I took the servo apart, and something in the circuitry went haywire, because I hooked it up to my receiver, and it will flip to the other the other polarity, flip back around, and then spin. This servo was bad from the get go, because It did not start working until it got real cold.

 

[turbosat]

Ok, that is entirely possible too. I haven't had many bad ones, luckily. I did learn that two of my analog receivers, which I still use to move some dishes, have a feature on them called Seek>which was used to look for a VC2 signal automatically, if the user failed to leave the receiver on a scrambled analog channel. Without the update hits on the old scrambling system, the decoder would stop working. But the seek feature worked even if the receiver was turned off, and I would notice the polarotor motor spinning every 2 minutes or so while I was outside by the dishes one day. I had no idea that they did that, and I'm sure that contributed to wearing those little servos out.