Komatsu Excavator Parts Main Pump PC78US-6

Komatsu Excavator Parts Main Pump PC78US-6

The main pump in an excavator is a crucial component of the hydraulic system. It is responsible for generating hydraulic pressure that powers various hydraulic components, enabling the excavator to perform tasks such as digging, lifting, and moving materials. Here are key points related to the main pump in an excavator:

1. Function: The main pump is the primary hydraulic pump in the excavator's hydraulic system. It pressurizes hydraulic fluid, which is then distributed to control the movement of hydraulic cylinders, motors, and other components.

2. Hydraulic System Control: Excavators use hydraulic systems to control the movement of the boom, arm, bucket, and other attachments. The main pump plays a critical role in providing the necessary hydraulic pressure for these movements.

3. Variable Displacement: Many modern excavators are equipped with variable displacement pumps. This means that the pump can vary the amount of hydraulic fluid it pumps based on the load and requirements of the machine.

4. Piston Pump or Gear Pump: The main pump is typically either a piston pump or a gear pump. Piston pumps are more common in larger excavators due to their higher efficiency, while gear pumps may be used in smaller machines.

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