Maybe climb the tower and try to move the antenna while someone runs the
control box?
-----Original Message-----
From: Wayne Kline <w3ea@hotmail.com>
To: towertalk <towertalk@contesting.com>; kz8e <kz8e@wt.net>
Sent: Tue, Oct 4, 2016 8:52 am
Subject: Re: [TowerTalk] T2X rotor stuck
The sticking of the TX2 in the south position either CCW or CW is a know issue.
Mater of fact it can occur in any position if parked there for long periods
of time .
As stated by a few. jumping out the limit switch and rocking it back and
forth to overcome the "STUCK BRAKE WEDGE" I at first put a label maker
tape on the 40 meter and 20 meter TX2's " DO NOT GO FULL SOUTH " Over
time I rebuilt two TX2 and the new brake wedges. I filed off the SHARP edge
to a smooth
radius. This trick minimized the Stuck brake wedge syndrome but did not 100%
eliminate it .
The finial fix was to install two Green Herring rotor control boxes and set the
rotation stop 175 deg and 355 deg.
Wayne W3EA
________________________________
From: TowerTalk <towertalk-bounces@contesting.com> on behalf of Earl Morse
<kz8e@wt.net>
Sent: Tuesday, October 4, 2016 8:27 AM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] T2X rotor stuck
Mine does that all the time, especially if I haven't been in the shack for a
while. First time it did it I changed it out only to find out that it worked
flawlessy on the bench. The sticking doesn't seem to be related to end of
rotation but rather just not having been used in a while.
I think a little pressure on the brake wedge holds it in the brake cog. Have
someone release the brake while you go outside and see if you can hear the
clank of the brake dropping. If so, then the brake is good and you have
something going on with the motor.
I have had good luck with telegraphing the brake while rocking the rotor with
the CW/CCW switches to get the brake to drop out. It's a hassle but so is
climbing the tower and changing out the rotor.
As for preventing it, I guess you could grease the cog but if the grease sets
up it will make it even harder to retract.
Earl
N8SS
>
>> On 10/3/2016 7:19 PM, Mike wrote:
>> Hello,
>>
>> Got a T2X rotor hung up in the south position. Can not get it free by
>> trying to get the rotor to move in the other direction or even trying to go
>> in the initial direction that got it stuck and then quickly going in the
>> reverse direction.
>>
>> My rotor is near the top of a 130 ft tower. The phase reversal capacitor
>> is located next to the rotor eliminating being able to bypass the rotation
>> safety switches.
>>
>> I do have a backup T2X, but would be nice to free up the stuck rotor so
>> wouldn't have to climb. Any suggestions on what can be done from the
>> ground to free up the rotor?
>>
>> Also, any suggestions on how to keep the rotor sticking in the south
>> position from reoccurring?
>>
>> 73,
>> Mike, K4GMH
>> _______________________________________________
>>
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