I added a winch to the top of my LM-470 so I can raise the mast up far
enough to allow easy removal of my T2X (or lower the mast down far enough to
work on the antennas). I also installed a U bolt on the mast a couple of
inches above the top of the rotator to fasten the winch cable to. I run
stacked 4 element monobanders that make the winch almost a necessity. The
winch and mounting is very similar to the one US Tower sells.
Also, my thrust bearing carries the weight of the mast and antennas. I have
found that by suspending the rotator from the mast (rather than having the
weight of the mast on the rotator) the brake wedge does not stick.
I still tear up the gears in the T2X, probably because I reverse the antenna
before it comes to a full stop. I am working on a Rotormapic (recent QST
article) that the software author has included a "rotation reverse delay" at
my request. Never had the gear problem with my old Ham-M, probably because
the motor doesn't have enough torque to strip them when I hit the reverse to
soon.
de Paul, W8AEF
----- Original Message -----
From: "Joe Giacobello, K2XX" <k2xx@swva.net>
To: <towertalk@contesting.com>
Sent: Thursday, December 19, 2002 5:43 PM
Subject: [Towertalk] Rotor Removal from tower: Is there an easier way?
> Well, it looks like the brake on my T2X has finally thrown in the towel.
> I have ordered a repair kit from Champion. However, my main concern is
> getting the rotor out with the minimum amount of surgery.
>
> My tower is an LM-470 and I can do all the work at ladder level. The
> rotor is mounted on a rotor mounting plate a few feet below the top of
> the tower. As I see it, my only option is to either loosen the set
> screws on the thrust bearing or unbolt the bearing from its mounting
> plate and pull the mast out just far enough to allow me to pass the
> unbolted rotor out the first clear opening in the tower framework. Are
> there any other options? (I have a terrible habit of missing the
obvious.)
>
> Also, does anyone have any pointers for replacing the brake?
>
> 73 and Tnx for your help.
>
>
> Joe
>
> _______________________________________________
> AN Wireless Self Supporting Towers at discounted prices,
> See http://www.mscomputer.com
>
> Wireless Weather Stations now $349.95. Call Toll Free,
> 888-333-9041 for additional information.
> _______________________________________________
> Towertalk mailing list
> Towertalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
|