OEM K3V180DT-9N09 Excavator Main Pump | replacement parts

Piston Assembly: The piston assembly is responsible for generating hydraulic pressure by reciprocating within the cylinder block.

Due to constant movement and exposure to high pressures, the pistons can wear out or develop cracks. Replacing the piston assembly ensures optimal pump performance and prevents hydraulic fluid leakage.

Cylinder Block: The cylinder block houses the pistons and controls the flow of hydraulic fluid. It is subjected to intense pressure and can experience internal corrosion or damage. If the cylinder block is compromised, it can cause reduced pump efficiency or complete failure. Installing a new cylinder block maintains the hydraulic system's integrity.

Valve Plate: The valve plate regulates the flow and direction of hydraulic fluid within the pump. Over time, the valve plate can become worn, leading to fluid leakage or improper flow control. Replacing the valve plate helps maintain the correct flow rates and prevents pressure inconsistencies.

Swash Plate: The swash plate converts the rotational motion of the pump shaft into linear motion for the pistons. Continuous movement and contact with the pistons can cause wear or scoring on the swash plate surface. Replacing the swash plate ensures smooth piston operation and prevents loss of power.

Shaft Seal Kit: The shaft seal kit comprises various seals and gaskets that prevent hydraulic fluid from leaking along the pump shaft. These seals can degrade over time, leading to fluid loss and potential pump damage. Installing a new shaft seal kit helps maintain the proper fluid level and prevents contamination.

Bearings: The main pump contains several bearings that support rotating components and reduce friction. Continuous use and exposure to high loads can cause bearing wear or failure. Replacing worn or damaged bearings prevents excessive vibration, prolongs pump life, and ensures smooth operation.

O-rings and Seals: O-rings and seals are critical for maintaining a leak-free hydraulic system.

These small but vital components can deteriorate due to high pressures, temperature fluctuations, or chemical exposure. Replacing worn or damaged O-rings and seals prevents fluid leakage and maintains system efficiency.

Drive Shaft: The drive shaft transfers power from the engine to the pump, enabling its operation. If the drive shaft becomes damaged or worn, it can affect the pump's performance or result in complete failure. Replacing the drive shaft ensures a reliable power transmission and prevents downtime.

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