More the latter than the former. You can apply way more than 40 lbs - your
entire body weight if it's a vertical lift.
I think the one I have (made in the USA) is rated for 2000lb max. That's with
using the built in pulley that gives you a 2:1 advantage in addition to the
ratchet. My recollection is that picking up a V8 engine (straight, 1:1) with
transmission attached as a dead lift worked up a sweat.
Al
AB2ZY
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Rick Karlquist
Sent: Friday, September 23, 2011 7:49 PM
To: k3hx@juno.com
Cc: towertalk@contesting.com
Subject: Re: [TowerTalk] Maasdam "Powr Pull"
A question for you come along experts.
I saw some come alongs at the Chinese tool store (you know the one) that
claimed to pull some huge weight like 8 tons. Assuming the user applies 40
lbs, this is a 400:1 mechanical advantage, not counting friction. This is hard
to believe. Is this true of these or even the American equivalents? Or is
this specsmanship where it moves an 8 ton boat onto a trailer or something like
that?
Rick N6RK
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