Power
Numerous forklifts are made to operate on propane gas. Forklifts that use propane are very easy to refill. The gas is stored in a pressurized tank on the back 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 be able to control the flow of vapor. A spark plug fires up the air and vapor mixture producing pressure that moves the pistons. The pistons turn the wheels and power the hydraulic pump.

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

Hydraulics
What enables a forklift to lift and transport heavy stuff 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. Unlike a car, a forklift utilizes its rear wheels to pivot, that enables the forklift to rapidly turn on a tight radius.