OEM NX15 Excavator Main Pump | replacement parts

Piston Assembly: The piston assembly is a critical part of the main pump. It consists of pistons, piston rings, and a piston shoe.

These components work together to generate hydraulic pressure, which is necessary for the excavator's hydraulic system to function properly. If any of these parts become worn or damaged, it is essential to replace them to ensure optimal performance.

Cylinder Block: The cylinder block is another essential component of the main pump. It contains multiple cylinders that house the pistons. Over time, the cylinder block can suffer from internal damage or wear. In such cases, replacing the cylinder block is necessary to restore the pump's efficiency and prevent any further damage to the hydraulic system.

Valve Plate: The valve plate is responsible for controlling the flow of hydraulic fluid within the main pump. It consists of various valves, such as the inlet and outlet valves, which direct the fluid to the appropriate locations. If the valve plate becomes worn or damaged, it can lead to a decrease in pump performance. Replacing the valve plate ensures proper fluid flow and efficient operation of the excavator.

Shaft Assembly: The shaft assembly connects the main pump to the engine or motor. It transmits the rotational power from the engine to the pump, enabling it to generate hydraulic pressure. If the shaft assembly becomes bent, damaged, or shows signs of excessive wear, it should be replaced to maintain the pump's functionality and prevent any potential breakdowns.

Seals and O-Rings: Seals and O-rings are crucial for preventing fluid leaks within the main pump. They ensure a tight seal between different pump components, preventing hydraulic fluid from escaping and contaminants from entering the system. Over time, these seals and O-rings may deteriorate, leading to leaks and decreased performance. Replacing them helps maintain the integrity of the hydraulic system and prevents damage to other pump components.

Bearings: The main pump contains various bearings that support the rotating components, such as the shaft and cylinder block. These bearings allow smooth rotation and reduce friction within the pump. If the bearings become worn or damaged, they can cause increased noise, vibration, and decreased pump efficiency. Replacing worn-out bearings is crucial for ensuring optimal pump performance and prolonging its lifespan.

Gaskets: Gaskets are used to create a tight seal between different pump sections, preventing fluid leaks.

They are typically made of rubber or metal and can deteriorate over time. If a gasket fails, it can lead to leaks, reduced pump performance, and potential damage to other components. Replacing worn

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