Hot sale K3V140DT-9N09 Excavator Main Pump | replacement parts

Piston and Cylinder Block: The piston and cylinder block assembly forms the heart of the main pump.

It converts mechanical energy into hydraulic pressure. Replacing worn-out pistons or damaged cylinder blocks is essential for maintaining efficient hydraulic power generation.

Valve Plates: Valve plates are critical for controlling the flow of hydraulic fluid within the pump. Over time, valve plates may develop cracks or wear, leading to pressure loss and reduced performance. Replacing valve plates helps restore proper fluid flow and pressure regulation.

Swash Plate: The swash plate is responsible for converting the rotating motion of the pump shaft into linear motion of the pistons. It controls the pump's displacement and determines the volume of hydraulic fluid delivered. If the swash plate becomes damaged or worn, it can cause erratic pump operation. Replacing the swash plate is necessary to maintain smooth and accurate pump performance.

Bearings: Bearings support the rotating components of the main pump, such as the drive shaft and swash plate. Continuous operation and heavy loads can cause bearing wear or failure. Replacing worn bearings ensures proper alignment, reduces friction, and extends the pump's overall lifespan.

Shaft Seal and O-Rings: Shaft seals prevent hydraulic fluid leakage and maintain pressure within the pump. O-rings provide sealing between different pump components. If the shaft seal or O-rings become worn or damaged, it can lead to fluid leaks and decreased pump efficiency. Replacement of these seals and O-rings is essential to prevent leaks and maintain optimal pump performance.

Drive Shaft: The drive shaft connects the main pump to the engine or motor, transmitting power to drive the pump. Over time, the drive shaft may experience fatigue or damage due to high torque and vibration. Replacing a worn or damaged drive shaft is crucial to ensure reliable power transmission and prevent catastrophic failure.

Control Valve: The control valve regulates the flow and direction of hydraulic fluid within the main pump. It enables the operator to control various machine functions. If the control valve malfunctions or develops internal leaks, it can cause erratic pump operation or loss of control. Replacing the control valve helps restore precise control and efficient hydraulic system operation.

Seals and Gaskets: Various seals and gaskets are used throughout the main pump to prevent fluid leakage and maintain system integrity.

Over time, these seals can deteriorate or become damaged, leading to leaks and reduced performance. Regular replacement of seals and gaskets is necessary to ensure a reliable and leak-free hydraulic system.

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