This is quick video on how the pump jack scaffolding works. There is a brake release where you hold it down with your foot and you can crank them down. I started siding with ladders and ladder jacks 20 years ago, then upgraded to a wooden pump jack system, then shortly after to aluminum pump jacks. Without them, I wouldn’t work by myself. As you can see the guardrail/workbench holds all of the material needed for the entire wall saving any up & down trips to grab materials and gives me a workben