Power
Numerous forklifts are made to operate on propane gas. Forklifts that use propane are 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 combines with air. The throttle of the forklift is used to be able to control the flow of vapor. A spark plug fires up the mix of vapor and air producing pressure which moves the pistons. The pistons turn the wheels and run the hydraulic pump.
Because the types of forklifts that are powered by propane have low emissions and are clean burning, they are suitable to be utilized within other buildings and warehouses.
Hydraulics
What enables a forklift to lift and move heavy stuff from one location to another is the hydraulic system. Tubes, cylinders and a pump 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 in the pump.
Steering
Propane forklifts work well where maneuverability is necessary. Unlike an automobile, a forklift utilizes its rear wheels to pivot, which enables the forklift to quickly pivot on a tight radius.