Power
There are many kinds of forklifts that are operated by propane gas. Forklifts that utilize propane are very easy to refill. The gas is stored inside a pressurized tank on the rear of the truck. 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 vapor flow. A spark plug fires up the vapor and air mixture producing pressure that moves the pistons. The pistons turn the wheels and run the hydraulic pump.
Since the types of forklifts which are operated by propane have low emissions and are clean burning, they are suitable to be used within warehouses and other buildings.
Hydraulics
What allows a forklift to lift and transport heavy objects from one place to another is the hydraulic system. 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 lifts the forks. When the operator lowers the forks, the hydraulic fluid flows out of the cylinders and back into the pump.
Steering
Propane forklifts work well where maneuverability is needed. Not like an automobile, a forklift utilizes its rear wheels to pivot, which allows the forklift to quickly turn on a tight radius.