Scotchbrite pads and WD40 (and elbow grease) work really we ll for cleaning
aluminum.
Roger, I believe you, but you are the only person I know who's had problems
with nylock nuts. I think you got a bad batch.
Chris
KF7P
On Jan 11, 2016, at 7:42 AM, Roger (K8RI) on TT wrote:
> I rebuilt, or more like, reassembled a C19XR. Tubing cleaner brushes work
> very well at removing the crud from ~4" from the ends. A few brass barrel
> brushes with the extensions powered with an electric drill motor will easily
> go the 6 or 8 inches inside the tube ends which should be more than
> enough,. Use the swabs (2 or 3" long) to apply your lube and antioxidant of
> choice. They will easily coat the inside uniformly. The ultra-fine Scotch
> Bright pads do a real nice job on the outside of the matching tube.
> I didn't get it up soon enough so now I need to replace three tubes on one
> end of the 20 meter reflector. Someone (not me) ran into the reflector with
> one of the rear wheels of a zero turning radius lawn mower
>
> My work won't look near as nice as the projects shown. I only cleaned the
> mating surfaces for tubes and straps. Insulators were in good shape.
> I have lots of SS rivets and screws. As I mentioned in another post. I like
> the Nylock nuts, but they just don't last around here.
>
> 73
>
> Roger (K8RI)
>
>
> On 1/11/2016 Monday 9:11 AM, Tom_N2SR via TowerTalk wrote:
>> Nice work!
>> One thought about cleaning aluminum. A few years ago, I posted here looking
>> for a way to clean up aluminum that was sitting in the dirt. Someone
>> suggested HVAC coil cleaner. I was able to get a small container of the
>> stuff, and WOW does it work. It's very caustic, and you'll have to wear
>> good gloves and old clothes, but it works extremely well, and it's probably
>> much cheaper than the Locktite product you used. I used the coil cleaner
>> straight, applied it with old rags (they will disintegrate as you used
>> them!), let it sit a bit, and use the garden hose to spray the stuff off.
>> The booms and tubing looked 100% better. Not like brand new "polished"
>> tubing, but still much better than having it look grungy.
>> Tom, N2SR
>>
>> From: Howard Hoyt <hhoyt@mebtel.net>
>> To: towertalk@contesting.com
>> Sent: Sunday, January 10, 2016 11:03 PM
>> Subject: Re: [TowerTalk] Force 12 rebuild
>> Hi all,
>>
>> All the talk about older Force 12 linear loading vs. Tornado coil
>> upgrades inspired me to rebuild a 20-yr old C-4SXL I have had stored in
>> pieces for a few years. I took some pictures along the way, and you can
>> read about the process here:
>>
>> https://proaudioeng.com/force-12-c-4sxl-rebuild/
>>
>> I appreciate all the knowledge I have gained from this group that helped
>> me with the project, your comments and abuse are welcomed.
>>
>> Cheers & 73,
>>
>> Howie - WA4PSC
>> _______________________________________________
>>
>>
>>
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>>
>> _______________________________________________
>>
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>>
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>
>
> --
>
> 73
>
> Roger (K8RI)
>
>
> ---
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