[TowerTalk] Removing a K7NV Bracket that doesn't have the Spreader Bolt

[Richard Smith]

 Thanks for the good suggestion, Grant!
73, Rich, N6KT
    On Tuesday, November 29, 2022 at 09:17:24 PM PST, Grant Saviers <grants2 at pacbell.net> wrote:  
 
 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 at kk9a.com <john at 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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