Pneumatic post driver - GIF

[BuffaloJohn]

Had one for a few years, fantastic driver. I made a modification though. I inserted an air inflation valve inline with the air hose (like HF 68272, 61380, 56830). There was about 8ft of hose between the valve and the Mansaver. The valve acts as a deadman switch, but more importantly, you don't have to try to flip the switch on the moving Mansaver as it goes up and down.

Sold it recently to another fellow who is putting in a new fence.