Power
There are numerous types of forklifts which are powered by propane gas. Propane-powered forklifts are easy to refill. The gas is stored in a pressurized tank on the truck's rear. The propane is pushed into the engine, where it is converted into vapor and afterward the vapor combines with air. The throttle of the forklift is used to be able to control the flow of vapor. A spark plug ignites the mix of air and vapor producing pressure that makes the pistons move. The pistons power the hydraulic pump and turn the wheels.
Since the types of forklifts which are operated by propane are clean burning and have low emissions, they are best to be used in warehouses and other buildings.
Hydraulics
What enables a forklift to lift and move heavy things from one place to another is the hydraulic system. A pump, tubes and cylinders make up the hydraulic system. The pump forces dense fluid in the tubing and into the cylinders. The build up of pressure pushes a piston, that raises the forks. When the forks are lowered by the operator, the hydraulic fluid flows out of the cylinders and back in the pump.
Steering
Where maneuverability is necessary, propane forklifts are the most suitable. Unlike a car, a forklift makes use of its rear wheels to pivot, which enables the forklift to turn fast on a tight radius.