Hot sale HPV118 Excavator Main Pump | replacement parts

Piston Assemblies: Piston assemblies play a crucial role in generating hydraulic pressure by reciprocating within the pump housing.

If a piston assembly becomes damaged or worn out, it can lead to decreased pump performance. Replacing piston assemblies ensures optimal pump efficiency and hydraulic system functionality.

Cylinder Block: The cylinder block houses the pistons and controls the flow of hydraulic fluid within the main pump. If the cylinder block is damaged, it can result in leakage and reduced pump performance. Replacing the cylinder block helps maintain proper sealing and ensures efficient fluid flow within the main pump.

Valve Plate: The valve plate directs the flow of hydraulic fluid to different sections of the main pump. It contains control valves that regulate fluid movement and pressure. Over time, the valve plate may develop cracks or wear, causing fluid leakage and decreased pump efficiency. Replacing the valve plate restores proper fluid flow and improves overall pump performance.

Shaft and Bearings: The shaft and bearings provide support and stability to the moving parts of the main pump. Continuous operation and high pressures can lead to wear or damage to these components. Replacing the shaft and bearings ensures smooth rotation of the internal parts, reducing friction and extending the pump's lifespan.

Seals and O-Rings: Seals and O-rings are essential for preventing fluid leakage within the main pump.

They create a tight seal between different parts, such as the cylinder block, valve plate, and housing. Over time, seals and O-rings can deteriorate, resulting in leaks and reduced pump efficiency. Replacing these seals and O-rings helps maintain the integrity of the hydraulic system and prevents fluid loss.

Drive Coupling: The drive coupling connects the main pump to the engine or motor, facilitating power transfer. If the drive coupling is damaged or worn out, it can lead to power transmission issues and reduced pump performance. Replacing the drive coupling ensures a secure and efficient connection between the pump and the power source.

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