Gents, FWIW, I have a TriEx W-51 (laying in the yard, still) with the
factory installed winch still mounted to it. It's a worm gear driven hand
winch made by a company called 'Valley.' Google tells me that, likely, the
manufacturer was a firm now known as Valley Industries.
I am ever so hopeful that the W-51, once it's in the air, with this Valley
winch is easier to get up and down than my US Tower TX-455 with it's twin
K-1550's. Yikes! The TX-455 is scheduled for a winch transplant (I bought
a used Thern worm gear drive, heavy duty winch with a drill drive adaptor)
----- Original Message -----
From: "Tom Anderson" <email@example.com>
To: "Al Williams" <firstname.lastname@example.org>; <email@example.com>
Sent: Monday, August 04, 2008 1:38 PM
Subject: Re: [TowerTalk] Using a drill to install (Lay over - Raise) US
> I originally had a (2 actually)Fulton K-1550 winch on
> my TriEx W51 crank up tower for raising and lowering
> the tower's top 2 sections only. I replaced them with
> a Fulton K-2550, because of the horrendous squeal from
> the K-1550s disc pads, etc. (which had been replaced
> when the first set completely deteriorated in the wx
> outside. I tried just replacing the pads, but could
> never get the K-1550 even apart no matter how much
> force, etc. I applied, so I got a second 1550 and the
> problem was still there, although the pads have lasted
> much longer.
> The squeal was so loud my neighbors would come outside
> and see who/what was screaming in the neighborhood.
> I'm surprised someone didn't call the police.
> Finally gave up and replaced it.
> Apparently TriEx formerly used a mechanical locking
> winch with the W51. A friend of mine who has a W51 a
> few years older than mine has a "mechanical" winch
> that is geared and he says that's what came with it
> from TriEx. No pads, no squeal. Its all gears.
> 73 de
> Tom, WW5L
> --- Al Williams <firstname.lastname@example.org> wrote:
>> ----- Original Message -----
>> From: "Richard (Rick) Karlquist"
>> Sent: Monday, August 04, 2008 8:14 AM
>> > I replaced the K2550 on my TRX-100HD with a W3000.
>> It decreased the
>> > cranking effort from extremely difficult to
>> difficult. (With the K2550,
>> > raising the tower was truly an athletic event.)
>> The drill has
>> > enough torque (rated 410 inch lbs) to lower the
>> tower, but it cannot
>> > raise the tower from a horizontal position. Of
>> course, once the
>> > tower is tilted up a ways, then the drill can take
>> I replaced the k1550 winch with a k2550 winch but it
>> was still pretty
>> difficult to crank so I modified the raising
>> (layover) pulley arrangement by
>> adding two more pulleys to get the mechanical
>> advantage. Now it is much
>> easier to crank but takes a lot of crank turns which
>> means that I am lifing
>> my arm weight much more. I have been using a 1/2
>> drill that works fine
>> (after I manually get the tower lifted up a bit) and
>> of course it is easier
>> to lower the tower. I have never seen smoke from
>> the brake pads or heard
>> any squeal protest.
>> I am curious as to whether the pressure on the
>> brakepads ( hence less squeal
>> and smoke) is decreased if the weight that the winch
>> is lifting is reduced.
>> Perhaps a mechanical engineer can answer this (or
>> other qualified person!)?
>> TowerTalk mailing list
> TowerTalk mailing list
TowerTalk mailing list