Power
There are numerous types of forklifts which are powered by propane gas. Forklifts which use propane are easy to refill. The gas is stored in 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 mixes with air. The throttle of the forklift is used to control the vapor flow. A spark plug fires up the vapor and air mixture creating pressure which moves the pistons. The pistons run the hydraulic pump and turn the wheels.
As the kinds of forklifts that are powered by propane have low emissions and are clean burning, they are best to be used in warehouses and other buildings.
Hydraulics
The hydraulic system of the forklift is what allows it to lift and transport really heavy stuff from place to place. 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, that lifts 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 an automobile, a forklift utilizes its rear wheels to pivot, which enables the forklift to quickly pivot on a tight radius.