Power
There are numerous kinds of forklifts that are operated by propane gas. Propane-powered forklifts are very simple to refill. The gas is stored inside a pressurized tank on the truck's back. 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 utilized to be able to control the flow of vapor. A spark plug ignites the mix of vapor and air producing pressure that makes the pistons move. The pistons turn the wheels and run the hydraulic pump.

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

Hydraulics
The forklift's hydraulic system is what allows it to lift and move very heavy stuff from location to location. Cylinders, a pump and tubes make up the hydraulic system. The pump forces dense fluid through the tubing and into the cylinders. The pressure build up 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 necessary, propane forklifts are the most suitable. Not like an automobile, a forklift utilizes its back wheels to turn, that enables the forklift to rapidly pivot on a tight radius.