Power
Numerous forklifts are designed to run on propane gas. Forklifts that use propane are very simple to refill. The gas is stored inside 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 combines with air. The throttle of the forklift is used to be able to control the flow of vapor. A spark plug fires up the air and vapor mixture creating pressure that moves the pistons. The pistons turn the wheels and run the hydraulic pump.
Forklifts that use propane are suggested for use inside warehouses and other buildings since they are clean burning with low emissions.
Hydraulics
The hydraulic system of the forklift is what allows it to raise and move really heavy stuff from location to location. Tubes, cylinders and a pump 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 lifts 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 turn fast on a tight radius.