The old Volvo MD7A is a little tired and I've got a Beta 13 going in over the next few weeks. To help with the heavy lifting, I built a gantry from a 14' long 2x8', with a 12' long 2x3 glued & screwed to the bottom. One end is supported by a sawhorse arrangement, the other by my old maple tree. The trolley is just a 2x3 with a plywood skirt. Bevel cuts on the end of the 2x3 readily accept the 1" wooden dowel bits I used for bearings. It rolled along pretty smoothly, hand feeding the bearings back into the front end as they popped out the back. It really can't run away like this; it would just skid to a halt as it runs out of bearings after a foot of travel. A simple come-a-long does the actual lifting.
After lifting the 400lb Volvo, the Beta felt like reeling in a flounder. If you need to lift, move, and lower something big, a gantry might be just the thing.



Honestly, this is one of the few trees that actually deserves a hug!

Cheers,
John