3) AIR BREATHER AIR BREATHER The air breather is equipped with the capacity to perform three functions simultaneously-as an air filter, breathing valve, and as a lubrication opening. (1) Preventing negative pressure inside the Preventing negative pressure inside the tank tank The tank is a pressurized sealed type, so negative pressure is formed inside the hydraulic tank when the oil level drops during operations. When this happens, the difference in pressure between the tank and the outside atmospheric pressure opens the poppet in the breather, and air from the outside is let into the tank or prevent negative pressure.
Air breather (2) Preventing excessive pressure inside Preventing excessive pressure inside the tank the tank When the hydraulic cylinder is being used, the oil level in the hydraulic system increases and as temperature rises. If the hydraulic pressure rises above the set pressure, breather is actuated to release the hydraulic pressure inside the tank. 760F6WE22 6-38