Power
Numerous forklifts are designed to run on propane gas. Propane-powered forklifts are really simple to refill. The gas is stored in a pressurized tank on the truck's back. The propane is pushed into the engine, where it is converted into vapor and the vapor mixes with air. The throttle of the forklift is utilized to be able to control the vapor flow. A spark plug ignites the mix of vapor and air producing pressure which moves the pistons. The pistons run the hydraulic pump and turn the wheels.

Forklifts that use propane are suggested for use inside warehouses and other buildings since they are clean burning with low emissions.

Hydraulics
What enables a forklift to raise 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 pressure build up pushes a piston, that lifts the forks. When the operator lowers the forks, the hydraulic fluid flows out of the cylinders and back in the pump.

Steering
Where maneuverability is required, propane forklifts are the most suitable. Not like an automobile, a forklift makes use of its back wheels to pivot, that allows the forklift to quickly pivot on a tight radius.