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
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.
--- Al Williams <email@example.com> 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!)?
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