[TowerTalk] ProSistel ring rotators

[Jon Zaimes, AA1K]

Hi Steve. 
Son Adam N3TTT and I have installed a bunch of these. Pre-assemble on ground so everything is together in two halves, including the motor. Diagram in the manual is helpful. https://www.arraysolutions.com/pdfs/RR55-UserManual.pdf
Leave leg brackets slightly loose. Then raise and install on tower. This leaves minimal bolting to do on the tower, just putting the U-bolts to the tower legs and putting the two halves together. Use a couple of lanyards to loosely hang in place while you do the bolting. Loctite recommended on the bolt threads holding the ring together.
Toughest part is getting the nuts on the metric bolts that hold the two halves together. Hex nut goes in tight space between the moving and fixed part of ring. Put a piece of Scotch 33 on the end of a 10mm box wrench to hold the nut while you slide it into place.
Use a level before tightening the leg bolts.
Only one climber needed on the tower for the install.
These are nicely machined rotors that work first time, every time. Good value for the money.
We encountered a problem on one of these that had been installed by someone else. It worked fine for several months but then started binding. We were called in to de-bug and observed flat washers had been installed under several bolt heads that were not shown in the manual. Removal of the added washers cured the problem.

73/Jon

Jon P. Zaimes, AA1K
Tower climber for hire
Felton, Delaware
http://www.aa1k.us/
Cell: 302-632-2353 

Reviews of AA1K tower work on eham website: http://www.eham.net/reviews/detail/12922

Hug your favorite tower every day, and always stay connected to it. 

    On Tuesday, August 13, 2024 at 06:50:56 PM EDT, k7lxc--- via TowerTalk <towertalk at contesting.com> wrote:   

 Howdy, TowerTalkians -
     Has anyone installed one of these? How do they go together? On ground or in air installation recommended? Once we get them anyway - hi. Cheers & tnx,Steve      K7LXC
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