It can split one line of fluid into two, three, or more. What happens when there is a very heavy load for the forklift to lift? That’s when the Flow Divider comes into play. The pump creates the pressure that moves the fluid through the hydraulic forklift system. Tubing pumps the hydraulic fluid into a reservoir. Resistance is introduced to run the fluid through the hoses and connections on the different components that are powered via hydraulic pressure. As the hydraulic lines put pressurized fluid into the tube, the rod is pushed out as the fluid looks for the path of least resistance. The cylinders are sealed tubes with an inserted rod. They supply the pressure necessary to move hydraulic fluid through the system and move pistons up and down. They’re fed by fluid hoses with a high pressure pump at the end. Giant pistons on the front of forklifts are responsible for hydraulic pressure. While air can be compressed, liquids cannot, so when you exert pressure in a confined space, you create hydraulic pressure. The same principle is at work in forklift hydraulics. If you’ve ever put your finger over a hose while it’s running at full blast, you’ve experienced the power of hydraulic pressure. With the basics of the forklift hydraulic system explained, let’s dive into some of the most frequently asked questions about this technology: How Do Hydraulics Work in a Forklift? Synthetic fluids are useful for high temperature and high-pressure systems. Petroleum-based fluids are customized to the hydraulic system with additives and are the most popular. Water-based fluids are fire-resistant but do not provide as much lubrication as the other types. The types of fluids used in hydraulic forklifts include water-based fluids, petroleum-based fluids, and synthetic fluids. The return line completes the forklift hydraulics cycle. This part is considered a critical safety component of hydraulic forklift hydraulic pressure. Protects the hydraulic system from too much pressure. Without a control valve, forklift hydraulic pressure would be useless. Starts and stops the direction of fluid and controls where the fluid moves using spools. The pump consists of a pair of rotating gears that push the fluid in the opposite direction of the rotation. Produces a constant flow of hydraulic fluid to supply the control valve. īesides the tank, the components of the forklift hydraulic system include: The Pump That’s what holds the forklift hydraulic fluid. In most forklifts, the tank is integrated into the frame of the vehicle. In terms of the forklift hydraulic system, the pistons raise the forks and keep them lifted until the hydraulic pressure is released by the operator. The piston cannot move in the opposite direction unless the pressure is released. That transfers energy into the piston, forcing it upward. That pressure forces the liquid against a piston on the other side of the container. Hydraulic presses put pressure on a small amount of liquid to create a large amount of power.Ĭonfined liquid has pressure on it from one side. It all depends on special pressurized fluid used to power the engine of a car or machine. Understanding how a forklift hydraulic system works is simpler than you might expect. If you are a heavy equipment operator, it’s important to understand how these forces work and the different parts that go into them. Since their invention, hydraulic forklifts have helped people get difficult, heavy work done.
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