From the bottom plate and place the foot of the tool against it.
How to install scissor floor j.
How to install a screw jack to level your floor by james carey morris carey if your home is built on expansive soil and thus subject to regular movement a screw jack can be used in lieu of solid wood posts between the concrete piers in the crawlspace and the girders that support the floor joists.
Install self drilling tech screws either phillips or hex head through the snap clamps.
To use the scissor for plumbing a wall tack a cleat to the subfloor about 6 ft.
Allow for a 3 8 inch gap along both walls to allow for expansion of the flooring.
Measure the width of the room from this wall and divide the distance by the width of the planks.
A scissor jack is operated simply by turning a small crank that is inserted into one end of the scissor jack.
Release the clamp keeping the other scissor door pipe out of the way and let it hang vertically near the other one.
Lay a piece of cut plastic over the opposite side now and wrap it around the vertical scissor door pipe evenly.
This crank is usually z shaped.
Next open the arms of the scissor until its raised end can be firmly wedged against the top plate of the stud wall.
When this crank is turned the screw turns and this raises the jack.