Roger,
It can't hurt to give it a try and see if it turns. I am hoping to find the
problem a little closer to ground level if I am lucky!
Thanks,
Todd
N4JRZ
--- On Tue, 9/7/10, Roger (K8RI) <K8RI-on-TowerTalk@tm.net> wrote:
From: Roger (K8RI) <K8RI-on-TowerTalk@tm.net>
Subject: Re: [TowerTalk] Ham Rotor Question
To: towertalk@contesting.com
Date: Tuesday, September 7, 2010, 1:23 PM
On 9/7/2010 11:47 AM, Jon Pearl - Laptop wrote:
> Hi Todd.
>
> Being a cubical quad user for many, many years I found myself folding over
> the tower with the boom aimed in all sorts of directions for obvious
> reasons. Since the quad is an three dimensional I always found that I had
> to climb a ladder to reach a broken wire or to even approach the mast or
> rotator. Large yagis are really no different in some respects, in that the
> longest element is always poking into the dirt - limiting how far down the
> tower lays.
>
> Your current situation dictates that you either find a wiring problem and
> fix it with the tower in a vertical position or loosen the saddle clamps on
> the boom-to-mast plate and rotate the antenna by hand so that you can fold
> your tower over to get to the rotator as you've done in the past. The
> reduction gearing of the Ham-M won't allow you to rotate it by hand.
I've always found the ham series very easy to rotate by hand with hardly
any resistance although I've not done it to all of them. However you do
have to release the brake first and it needs power for that. I have one
of the newer ones (still pretty old) apart on the bench and it turns
quite easily.
73
Roger (K8RI)
> Once you've gotten your rotator concerns out sorted out, the NN4ZZ Tilt
> Plate may be an option for you (for ground level maintenance, anyways) --
> http://nn4zz.com/tiltplate.htm. ; Your boom will still nest parallel to the
> earth but upon tower tilting, the boom and elements will slowly rotate to
> maintain a horizontal position that should allow you to fold your tower down
> to a point easily accessible to you while you're on the ground. No more
> ladders.
>
>
> 73,
>
>
> Jon Pearl - W4ABC
> www.w4abc.com
>
>
>
>
> ----- Original Message -----
> From: "Todd Coulter"<Coulter@bellsouth.net>
> To:<towertalk@contesting.com>
> Sent: Monday, September 06, 2010 9:37 PM
> Subject: [TowerTalk] Ham Rotor Question
>
>
>> I am presently having an issue with my Ham-M rotor. It is not rotating in
>> either direction and I am probably going to have to take it down for
>> repairs. I have eliminated the rotor controller as a possible problem by
>> swapping the current controller with a known good controller and the same
>> problem exists. It indicates the current direction, but will not rotate. I
>> will next eliminate the cable before taking the rotator down, but I think
>> it
>> is probably the problem.
>>
>> In order to make the lowering of the tower easier, I would like to
>> manually
>> rotate the rotator by hand. Is it possible to push and hold the brake
>> release button on the controller and rotate the rotator by hand?
>>
>> If this is possible, is the rotator fairly easy to rotate manually, or
>> does
>> it require significant effort as I would like to do this with a stout
>> stick
>> while standing on the roof?
>>
>> Thanks in advance for any help.
>>
>>
>> 73's
>>
>> Todd
>> N4JRZ
>
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