You may remember a painful mathematical post last summer where I described the safety features in the design of my shop-built crane. Don’t worry, there will be no math today! The post I shared last year showed the crane lifting a load via the boom that extends beyond the end and higher than the scaffold on which the crane is built.
The other mode of operation, in fact the reason I built the crane, is that of a bridge crane. In this mode, the hoist lifts loads up into the space between the supports located at the end of the scaffold platform. I built the crane to help unload my utility trailer. In bridge crane mode, the rig is rolled over the trailer. The load is lifted, the trailer is removed, and the load is lowered onto the floor or, as was the case yesterday, onto sawhorses.
This was the first real test of the crane in this mode. I’ll give you the one-liner and then, if you’re interested, a few more details.
“It wasn’t pretty, but it wasn’t painful.”
The slideshow below shows the significant steps in the loading and unloading.
Given that unloading my trailer used to involve me lifting those sheets out of the trailer, carrying them from the driveway into the garage and lifting them onto the sawhorses, I’d say this was a success. I slid the sheets into the trailer at the home center and I used the crane to lift them out of the trailer. Secured them. Setup the sawhorses and lowered the plywood onto the sawhorses. No back pain, shoulder pain, knee pain or damaged plywood. For those that might be concerned, at no time was I under the suspended load.
In preparation for this test, I relocated the crane to the other side of my shop. It’s now closer to the door and much easier to move into the garage. I also installed a ramp over the stairs to the shop so the crane can be rolled in and out. Based on the experience yesterday, I made a simple modification to the crane itself, I raised the height of the platform. While I was able to unload the plywood with ease, I would have liked to have been able to raise the plywood a few more inches. Now I can.
This post is part of Linda G. Hill’s fun weekly series One-Liner Wednesday. If you would like to join in on the fun, you can follow this link to participate and to see the one-liners from the other participants.