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Re: [TowerTalk] US Tower HDX-689 Sheave replacement

To: Grant Saviers <grants2@pacbell.net>
Subject: Re: [TowerTalk] US Tower HDX-689 Sheave replacement
From: Ray Benny <rayn6vr@cableone.net>
Date: Sun, 10 Mar 2013 23:50:35 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Rich,

I think Tashjian Towers has them, but they are expensive.

Over the years I have pressed out and replaced a half dozen or so of the
bearings from the pulley. They are probably K8 or KP8 bearings. They are
not easy to find, although by now, they probably use a different bearing. I
have about 4 - 5 of the KP8s that I keep as spares. If you want more info
on the process, send me an email or call. If you have any mechanical
ability, and I know you do, they are not at all difficult to replace.

Ray,
N6VR

On Sun, Mar 10, 2013 at 10:16 PM, Grant Saviers <grants2@pacbell.net> wrote:

> I haven't had a pulley off my HDX589 but would assume the sheaves are
> similar since 4 of the 5 tower sections are identical to the 689. Can you
> post some pictures and describe what is wrong with the sheaves?  I'd like
> to know what is in y future.
>
> Grant KZ1W
>
>
> On 3/10/2013 8:58 PM, Richard (Rick) Karlquist wrote:
>
>> According to Skip KJ6Y, the pulley's are custom made for UST.  The
>> bearing in the middle is OTS, but there is a rather involved
>> procedure to press it in without wrecking it, then you have
>> to make a series of dents in it to secure it in place.
>>
>> Have you tried lubricating it to see if you can bring it back?
>>
>> Rick N6RK
>>
>> On 3/10/2013 5:19 PM, Rich Hallman - N7TR wrote:
>>
>>> Im looking for the 5 inch OD Pulley Sheave for the HDX-689. This is for
>>> the ¼ in cable.   I need to order a few of these as I'm replacing all the
>>> cables on the tower right now.  I know US Towers had them, but wanted to
>>> see if anyone else has replaced them from another vendor for a better price.
>>>
>>> Thanks...
>>> Rich
>>>
>>> Rich N7TR
>>> ex KI3V, N3AMK, WB3JOV
>>> www.n7tr.com<http://www.n7tr.**com <http://www.n7tr.com>>
>>> http://www.qrz.com/db/N7TR
>>> Telnet: dxc.n7tr.com N7TR DXCluster
>>>
>>>
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