[TowerTalk] Orion Rotor Indication Trouble

[Les Kalmus]

Jim,

Having gone through a rebuild earlier this year, I suggest you also 
replace the limit switches while you have the beast apart.
Make sure the motor brushes are not worn and its bypass capacitors are good.
M2 recommends a particular white lithium grease for the gear train. I 
bought the stuff they recommend (special order from a distributer) but 
it tends to melt. I would use a heavier grade next time.
You can get similar or better from McMaster Carr like their part number 
1394K3 <javascript:TargetLink('TR936','tr','PT9361','1394K3');>  or similar.
To waterproof the case, put a film of grease on the edge of each half of 
it when you reassemble.
Take pictures of each step when disassembling so you don't have a 
problem later.

Les W2LK

wa5zup wrote:
> I suspect that you have a bad reed switch in the rotor.
> M2 sells them for $25.
> I am pretty sure you can not replace it on the tower, I might be wrong.
> Getting the rotor out and down to replace it will be the hard part.
> If you do that, I suggest testing it completely on the ground, before
> putting it back up.
> 73 John wa5zup
>
> -----Original Message-----
> From: towertalk-bounces at contesting.com
> [mailto:towertalk-bounces at contesting.com] On Behalf Of Jim Harvey
> Sent: Friday, October 09, 2009 9:27 PM
> To: 'TOWERTALK'
> Subject: [TowerTalk] Orion Rotor Indication Trouble
>
> After a tower rebuild this summer my Orion rotor began giving me
> intermittent direction indication readings. The unit will quit turning
> normally and will only turn in very small increments and not indicate
> direction correctly. When it does come back to life the controller must be
> reprogrammed and then it will be fine for awhile only to start the cycle
> over again. M2 recommended using shielded cable for the sensor lines so I
> used some RG59 for each lead and thought that the problem had been fixed.
> Unfortunately this past week the trouble has appeared again. In addition to
> the change to shielded cable I have also tried another control box with the
> same results. Has anyone else experienced this? Is there a fix?
>
> Thanks,
>
> Jim N0AV
>
>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>