Power
There are numerous kinds of forklifts that are operated by propane gas. Propane-powered forklifts 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 the vapor mixes with air. The forklift throttle is used to be able to control the vapor flow. A spark plug ignites the mix of vapor and air creating pressure that moves the pistons. The pistons run the hydraulic pump and turn the wheels.

Since the kinds of forklifts which are operated by propane have low emissions and are clean burning, they are suitable to be utilized in other buildings and warehouses.

Hydraulics
What allows a forklift to raise and transport heavy objects from one location to another is the hydraulic system. Cylinders, a pump and tubes make up the hydraulic system. The pump forces dense fluid in the tubing and into the cylinders. The pressure build up 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 in the pump.

Steering
Propane forklifts work well where maneuverability is required. Unlike an automobile, a forklift uses its rear wheels to pivot, which enables the forklift to pivot quickly on a tight radius.