Power
There are many types of forklifts which are operated by propane gas. Propane-powered forklifts are really simple to refill. The gas is stored in a pressurized tank on the truck's back. The propane is pushed into the engine, where it is converted into vapor and then the vapor mixes with air. The forklift throttle is utilized to control the flow of vapor. A spark plug ignites the air and vapor mixture creating pressure which makes the pistons move. The pistons power the hydraulic pump and turn the wheels.

Forklifts that use propane are suggested for use in other buildings and warehouses since they are clean burning with low emissions.

Hydraulics
The hydraulic system of the forklift is what enables it to raise and move really heavy stuff from place to place. 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 raises the forks. When the operator lowers the forks, the hydraulic fluid flows out of the cylinders and back into the pump.

Steering
Where maneuverability is needed, propane forklifts are the most suitable. Not like a car, a forklift utilizes its rear wheels to pivot, that enables the forklift to rapidly turn on a tight radius.