Power
There are numerous kinds of forklifts which are powered by propane gas. Forklifts that use propane are really easy to refill. The gas is stored inside a pressurized tank on the truck's rear. The propane is pushed into the engine, where it is converted into vapor and then the vapor combines with air. The throttle of the forklift is utilized to control the flow of vapor. A spark plug fires up the air and vapor mixture creating pressure that moves the pistons. The pistons run the hydraulic pump and turn the wheels.

Propane powered forklifts are suggested for use in other buildings and warehouses since they are clean burning with low emissions.

Hydraulics
What enables a forklift to raise and move heavy objects from one location to another is the hydraulic system. A pump, tubes and cylinders make up the hydraulic system. The pump forces dense fluid through the tubing and into the cylinders. The build up of pressure pushes a piston, which raises the forks. When the forks are lowered by the operator, the hydraulic fluid flows out of the cylinders and back into the pump.

Steering
Where maneuverability is required, propane forklifts are the most suitable. Unlike an automobile, a forklift makes use of its back wheels to turn, that allows the forklift to rapidly turn on a tight radius.