Roger,
I'm pretty sure he's talking about threading "dimpled" lock nuts onto
the bolts.
-Steve K8LX
On 1/25/2016 7:05 PM, Roger (K8RI) on TT wrote:
ROHN says to enlarge the bolt holes using a taper pin punch. The punch
should leave the galvanizing intact. Open the holes just enough for the
bolts to fit. Never leave the holes so small you have to screw the bolts
is according to the ROHN instructions.
I’ve done a good share of towers over the years – all R45 (soon that
will include a 55) ... both new and used ... and I’m starting to put a
new tower up at my new location. This is R45. It is used. I bought new
Rohn (yes – Rohn) bolts and I’ve never had bolts that were SO tight
before. These have a dimple on one side – actually a set of 3. I’m
sure it’s a self locking mechanism. You can’t thread them on at all
starting with the dimpled face – they won’t go – so I’m pretty sure
I’m doing it the right way ... the small bolts went on with lots of
effort seeming to strip the galvanizing off the bolt as they went on
.. the large ones don’t want to go much more than when the dimple gets
on to the bolt.
Is this correct? Should I expect this much effort now with their new
bolts? Boy if one had to put up a good deal of sticks in a day their
arms would feel it at the end of it. Hate to have to haul an air
wrench up there :>)
Gary
K9RX
[I called Hill Radio, where I got the bolts, and they called Rohn
while I was on the phone (I didn’t talk to Rohn myself) ... Rohn says
yeah they’re tight but should be doable. They also said I’m probably
putting them on backwards – which isn’t possible as you can’t even
thread them on on the dimple side!]
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