I use a log dolly to move logs to my mill. Here's a photo of it with maybe a 22" log
It has a 2000 lb manual winch; a little hard to see as it's on the other side of the spine, just before the diagonal. The cable goes through a pulley at the top of the arch and loops under the log to a ring off center on the arch. This arrangement should cut the force in the cable in half, so if a log weighs 1000 lbs the cable on each side of the log should have 500 lbs on it. Well, I tried picking up a 2300 lb log the other day and the winch wouldn't do it; in fact the teeth stripped on one of the gears.
So, how do I need to rig this to be able to lift logs over 2000 lb with a 2000 lb winch? Thanks.
John