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[TowerTalk] Roller bearings, Pins, Tower ID

To: towertalk@contesting.com
Subject: [TowerTalk] Roller bearings, Pins, Tower ID
From: "Pat Barthelow" <aa6eg@hotmail.com>
Date: Tue, 01 Feb 2005 08:30:41 -0800
List-post: <mailto:towertalk@contesting.com>
Folks,

I have found a potential problem, on an older crankup tower, that I am refurbishing. The aluminum roller-guides at each section overlap, have aluminum straight pin-axles. The pins are about 3/8" dia by about 1.5" long, and are secured by (steel) circlips, or (steel) cotter pins The circlips and cotter pins are corroded and need replacing, possibly the complete pin-axles need replacing. The tower is a fairly old Triex. Triex has apparently evolved over the years into Tashjian towers. The tower looks very much like an HDX 555 The trellis work (seen in the picture below) should peg it. The center to center corner distance on the bottom 20' section is 24.5".
See:
http://groups.msn.com/towertrailers/shoebox.msnw?action=ShowPhoto&PhotoID=4


for a closeup photo of the rotor mounting plate, through the trelliswork.
Also, a base view of the tower:

http://groups.msn.com/towertrailers/shoebox.msnw?action=ShowPhoto&PhotoID=8

Are there any exact replacement roller pins available? Also what is the original model number for the Tri-Ex tower?

73, DX, de Pat Barthelow  AA6EG
(831) 646-0388    aa6eg@hotmail.com


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See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.

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