On 5/30/2012 4:33 PM, Jay Kesterson K0GU wrote:
> Hi all,
>
> Need some advice on an OR-2800DC that is about 12 years old. Over the
> years apparently the soft metal welded to the top plate, that attaches
> it to the hard steel output shaft, wallowed out creating a lot of play.
> This apparently caused the 1/4" guide bolt to unscrew and damaged the
> inside of the rotator. I replaced the top plate and that got rid of a
> lot of play. But I just opened to rotator to find a mess.
>
> The big gear on the output shaft has lowered down somewhat into the
> rotator. The limit switch pin on the gear has dug into the torque plate:
>
> http://i509.photobucket.com/albums/s339/K0GU/K0GU%20MISC/DSCF1214.jpg
>
> Also the gear itself has ground down the top of the limit switch lever:
>
> http://i509.photobucket.com/albums/s339/K0GU/K0GU%20MISC/DSCF1215.jpg
>
> I believe the gear itself has slipped down the shaft about ~13 mm as
> the shaft looks very shinny for ~13 mm above the gear. If I measure from
> the bottom of the gear to the bottom of the shaft I get approximately 33 mm.
>
> http://i509.photobucket.com/albums/s339/K0GU/K0GU%20MISC/DSCF1216.jpg
>
> The part the shaft sits on rises approximately 7 mm above the torque
> plate:
>
> http://i509.photobucket.com/albums/s339/K0GU/K0GU%20MISC/DSCF1221.jpg
>
> I'm reasonably sure the problem lies with the gear position on the
> output shaft but wonder if anyone can confirm my measurements?? I sent
> M² an Email with all the above info but they suggested I sent it in for
> a $300 repair (plus $100 shipping) and made no comment about my
> measurements. So I would like to verify that it really is the gear on
> the shaft and fix it myself. Despite the look of the torque plate/limit
> switch lever everything seems to be working OK if the 7 mm measurement
> is correct.
>
> 73, Jay K0GU
>
>
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