"Leon Fisk" wrote in message
...
On Fri, 4 Oct 2019 09:52:39 -0700 (PDT)
Davej wrote:

...
Make sure you consider the wheels. Those were pretty tiny (diameter)
on
the scissor unit you linked to. It wouldn't take much of a crack in
the
floor to hang it up. Even worse if you need to move it with a lot of
weight on board...

--
Leon Fisk
Grand Rapids MI

My 2000# Spreuer shop crane came with hook-end steel rollers similar
to a pallet jack, which were useless off pavement. I added four
surplus 8" x 1-3/4" cast steel wheels that helped a lot, but they
still dig in when towing it with a 1200# load.

The mast end rests on a 3-wheel trailer tongue jack that lifts it to
hitch up to the tractor, then retracts. You can buy spare wheels for
them (or your own project), which is why it has 3 instead of 1.