Power
There are numerous types of forklifts that are powered by propane gas. Forklifts that use propane are simple 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 the vapor combines with air. The forklift throttle is utilized to control the vapor flow. A spark plug ignites the mix of air and vapor creating pressure that makes the pistons move. The pistons run the hydraulic pump and turn the wheels.
Because the kinds of forklifts that are powered by propane have low emissions and are clean burning, they are best to be utilized within other buildings and warehouses.
Hydraulics
What allows a forklift to lift and move heavy objects 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 build up of pressure pushes a piston, which lifts the forks. When the forks are lowered by the operator, the hydraulic fluid flows out of the cylinders and back in the pump.
Steering
Where maneuverability is necessary, propane forklifts are the most suitable. Not like a car, a forklift makes use of its rear wheels to pivot, which allows the forklift to quickly pivot on a tight radius.