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Re: [TowerTalk] Removing a K7NV Bracket that doesn't have the Spreader B

To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: Re: [TowerTalk] Removing a K7NV Bracket that doesn't have the Spreader Bolt
From: Grant Saviers <grants2@pacbell.net>
Date: Tue, 29 Nov 2022 21:17:07 -0800
List-post: <mailto:towertalk@contesting.com>
A pretty handy tool not well known are set up or machinist wedges. Likely ductile iron so pretty tough. 3 sizes from Williams on Amazon

search Williams WG-3 3-Inch Set Up Wedge

Have beaten on mine all the sizes pretty hard.

Grant KZ1W

On 11/29/2022 20:08, Richard Smith wrote:
  Hi John,
Thanks for your response. The K7NV clamps are too corroded to be saved with 
paint.
We are not sure how much the corrosion is holding the clamp to the mast. But I 
think tapping a wedge (a chisel?) into the space may do the trick.
73, Rich, N6KT
     On Tuesday, November 29, 2022 at 07:17:34 PM PST, john@kk9a.com 
<john@kk9a.com> wrote:
Some of the K7NV clamps appear to be just electroplated.  I would paint over
them with zinc enriched paint or whatever you use on the towers to protect
the zinc.

You should be able to spread the clamp with a couple of screw drivers or a
pry bar or two. You could make a wedge and tap it in to spread the clamp.
The clamp should not be difficult to remove unless the corrosion to the mast
is holding it together.

GL,
John KK9A




Richard Smith n6kt wrote:

We have two of the K7NV 2" Mast Clamps installed at our station at PJ4K.
There has been quite a bit of corrosion built up on the Clamp, and we would
like to remove and replace them. The version that we have installed does not
have the Spreader Bolt. I would be interested in suggestions for removing
the clamps.  The mast is 2" galvanized Chrome Moly. They are installed on
OR-2800s at a height of 130'.
Thanks and 73,  Rich, N6KT

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