Power
Numerous forklifts are designed to run on propane gas. Forklifts that use propane are easy 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 control the vapor flow. A spark plug fires up the air and vapor mixture creating pressure that makes the pistons move. The pistons run the hydraulic pump and turn the wheels.
Propane powered forklifts are suggested for use inside warehouses and other buildings because they are clean burning with low emissions.
Hydraulics
The forklift's hydraulic system is what allows it to raise and move really heavy things from location to location. Cylinders, a pump and tubes make up the hydraulic system. The pump forces dense fluid in the tubing and into the cylinders. The build up of pressure pushes a piston, that 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 needed, propane forklifts are the most suitable. Unlike a car, a forklift makes use of its rear wheels to turn, which allows the forklift to turn fast on a tight radius.