Pneumatic roof lift assemblies posted in observatories.
How to use a jack pneumatic roof lift.
Over the decades there have been many car jack designs used by automakers or sold in stores ranging from scissor jacks also known as screw jacks to hydraulic floor jacks bottle jacks and even pneumatic car jacks that lift the vehicle with compressed air.
When closed the roof rests on a 1 4 thick x 1 2 wide.
Often a support structure is required.
The air coming out of the pipe fills the bag and voilĂ .
A hose attaches from the exhaust to a big sack placed under the car.
With the column half leaning toward me i put the top of the other column half under the rafter that i want to lift.
The exhaust air jack lifts a vehicle using emissions coming from the tailpipe.
Ducts air conditioning pipe handling steel.
As you pull down on the handle of a hi lift jack the bottom pin is held in position and the top pin moves up the bar.
Combine roof jacks with a roofing ladder.
Great for tight spaces.
For duct jack rigging repairing equipment lifting indoors or outdoors on roofs or buildings.
Up to 10 stories depth.
Portable hvac maintenance roof crane hoist for hvac lifting.
To lift the roof i put the bottom half of the two piece column where i want it on the porch floor.
In this case we were able to.
Install ac units heating cooling.
Place two 4 by 4 or 6 by 6 inch beams parallel to each other about 24 inches apart.
Now as shown in the drawing i snap the two halves together lifting the roof.
Note that above the pins in the lever are locked in the up position.
Another poster requested details.
The photos below show one of the lift assemblies in both the open and closed positions.
With using the pro lift we managed to set all the equipment for this project with a little boom truck and transporting the equipment across the roof to the curbs.
Continue alternating the beams until reaching the necessary height.
To remove a jack when you re done with it tap up with a hammer to disengage the jack from the nails.
Place two more beams perpendicular to the first on top of the ends of the first beams.
Over in another thread i mentioned that the roof on my current observatory is lowered onto a perimeter seal when closed to prevent dirt and insect intrusion.
To drive the nails in so they don t poke through the roofing slip a flat pry bar under the shingle and over the nailhead and pound the nail down.