Power
Numerous forklifts are made to operate on propane gas. Forklifts which utilize propane are simple 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 the vapor combines with air. The throttle of the forklift is utilized to control the vapor flow. A spark plug fires up the vapor and air mixture producing pressure that moves the pistons. The pistons run the hydraulic pump and turn the wheels.
Forklifts that use propane are suggested for use inside warehouses and other buildings because they are clean burning with low emissions.
Hydraulics
What enables a forklift to raise and move heavy things from one location to another is the hydraulic system. A pump, tubes and cylinders 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 operator lowers the forks, the hydraulic fluid flows out of the cylinders and back in the pump.
Steering
Where maneuverability is required, propane forklifts are the most suitable. Unlike an automobile, a forklift utilizes its back wheels to pivot, that enables the forklift to pivot fast on a tight radius.