[amsat-bb] Re: G-5500 stuck problem

Dee morsesat at optonline.net
Thu Jan 1 15:06:33 PST 2009

Michael Hatzakis Jr MD wrote:

>Have a G-5500 and suddenly the rotor stops moving clock-wise past 180.  I
>stood under it and it makes no particular noises at that point, just stops
>perfectly at 180.  Was working the day before and flawlessly for the last 4
>It stops so quietly, it almost sounds like the limit switch or the
>controller is stopping the motor.  The elevation works perfectly and the
>rotation works fine from zero to 180.  If it were a bad gear or something
>like that, I would expect it to grind or make some funny sounds
>It is a royal pain to take the thing down; any ideas on debugging without
>taking the thing down?
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I cannot evaluate this, however, mine stops at 180 clockwise or 
counterclockwise.  You must have put it up with 180 as the
middle of the rotation.  Make sure none of your cables have become loose 
and is preventing this from turning.  Insure that 0 degrees is still 
correctly pointing
as I've seen the lower unit slip on the pipe (if it is installed this 
way) from loose bolts.
Good luck and let us know what you do find as the problem.
Dee, NB2F

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