[Yaesu] G-800DXA Issues

[PAUL PIERCEY]

Hi Dave,

I thought of that but it tends to work when it's cold and dry. It has broken free in the past few minutes and has almost full range of movement. The temp is -2C and sunny.

It worked fine when I had a smaller diameter mast but I replaced it when it snapped off a few months back. The new mast is larger and has surface rust. It may be rubbing on the guide on the tower between the rotor plate and the thrust bearing plate or it may be getting some moisture in these areas and that is freezing enough to limit the movement.

My basic question is should the rotator be so weak as to be unable to break free of that? I checked the gaps in the tower guide and they weren't so bad as to restrict the rotation before the winter.

When the mast snapped off, I was forced to either leave it all down or repair it as best I could in winter weather so the job was not as good as I would have liked. I will be doing a complete refit of the rotator assembly in the spring but it's really annoying now HI. Perhaps I will replace the rotor cable at that time as well.

Thanks -- Paul VO1HE


----- Original Message ----
From: Dave N9WQ <n9wq at charter.net>
To: vo1he at rac.ca
Sent: Sunday, February 10, 2008 1:40:24 PM
Subject: Re: [Yaesu] G-800DXA Issues

try replacing the cable... it sounds like a resistance problem whaer-as the 
voltage drop at the rotor might be to great .???????
----- Original Message ----- 
From: "Paul J. Piercey" <p.piercey at nl.rogers.com>
To: <yaesu at contesting.com>
Sent: Saturday, February 09, 2008 9:15 PM
Subject: [Yaesu] G-800DXA Issues


>
> I have G-800DXA that I got about 6 months ago. I find that if the temp 
> goes
> to around 0C, it freezes in position. Right now, as I type this, it will
> only rotate through 15 degrees in either direction before stopping. The 
> mast
> is fairly close to the tower mounts but, from what I can tell, does not 
> rub
> on it. I have a thrust bearing as well.
>
> Basically, it seems like the rotator doesn't have enough torque to turn if
> there is a slight resistance. If the wind is blowing at an angle to the
> beam, it tends to stutter as it rotates. Perhaps there is a bit of ice
> holding it in place but it has happened when the temp is above 0 as well. 
> We
> have had pretty cold temps (-12 to -15C) over the past few weeks and it
> worked fine when it was cold.
>
> I had an issue with the cable and had to repair it but that didn't seem to
> affect the operation until it started getting colder. It was working this
> morning and afternoon but I turned it to put the beam into the wind and 
> now
> it's stuck.
>
> Anyone have any issues like this with a similar rotator? I had a G-400RC 
> and
> it never stuck in place like this one.
>
> 73 -- Paul VO1HE
>
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