Power
There are many kinds of forklifts which are operated by propane gas. Forklifts which use propane are very 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 afterward the vapor mixes with air. The forklift throttle is used 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 run the hydraulic pump.

Because the kinds of forklifts that are powered by propane are clean burning and have low emissions, they are suitable to be utilized within other buildings and warehouses.

Hydraulics
The hydraulic system of the forklift is what enables it to raise and transport really heavy objects from place to place. Tubes, cylinders and a pump 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 needed. Not like an automobile, a forklift makes use of its back wheels to turn, that enables the forklift to turn quickly on a tight radius.