[TowerTalk] TX-455 holes

Grant Saviers grants2 at pacbell.net
Wed Oct 12 22:26:47 PDT 2011


Just went through the same with a new UST HDX589, 4 bolts per leg and 
wasn't sure I could get even 1 bolt into the rear leg after raising, 
pivoting on the bottom bolts in the front.

However, with some struggle by threading in the first bolt, it did go 
together but did lead me to look for an appropriate 1 1/2" "spud wrench" 
on ebay that has a long tapered tail for hole alignment.  I did find 
that tightening the first bolt made it possible to get in bolt 2, 
tighten it and then bolt 3 etc.

Now I'm searching for the proper torque value for these bolts (1"  
A325).  My engineering calcs from UST have no callouts.  The Portland 
Bolt torque chart says 1063 to 1271 ft-lbs (!!!) which is going to take 
one heck of a torque wrench and several NFL linebackers.  What is really 
necessary?

Another question is what should the base embedded rod nuts be torqued 
to?  They are 1 1/8" A36 threaded rod. If tightening against a leveling 
nut perhaps the bolts specs are the target but would that be too high if 
tightening against the embedded rod?

Grant  KZ1W



On 10/12/2011 9:27 PM, John Hudson wrote:
> Ok this may be irrelevant but I had a old Triesto tower that was damaged and
> I replaced it with a TX-455. The Triesto had 2 bolts in each leg, and when I
> tilted it over I pivoted on the bottom bolts in the front legs
>
>
>
> Now on the TX-455 I installed it today and got the bottom bolts in the two
> front legs in and raised it. Now the TX-455 has 3 bolts in each leg and the
> other  2 holes did not align just perfect. As a matter of fact it was pretty
> much a struggle to get the holes align.
>
>
>
> My question is I looked on line at some photos and looks like some use the
> middle holes to pivot on. Does it matter with three holes? Does it make
> alignment any easier?  Was wondering if anyone else has this issue
>
>
>
> Thanks
>
>
>
> John
>
> KO4XJ
>
>
>
>
>
>
>
>
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