Hebei Hankai high temp oil seal
2. Remove the Boom Cylinder Start by detaching the boom cylinder from the excavator. This typically involves removing the pins and bolts that secure the cylinder to the boom and the attachment points. Use a hydraulic jack to support the cylinder as you loosen the connections.
excavator boom cylinder seal replacement

The operation of a pressure reducing valve is based on a simple but effective principle. PRVs utilize a spring-loaded diaphragm that senses the downstream pressure. When the downstream pressure rises above a preset level, the valve reacts by closing partially or completely, thereby reducing the pressure entering the system. Conversely, if the downstream pressure drops too low, the valve opens more to allow additional fluid flow, maintaining the desired pressure. This feedback mechanism ensures that the system operates efficiently and safely.