How to Repair an Excavator Hydraulic Pump?

How to Repair an Excavator Hydraulic Pump?

Hydraulic pumps are the lifeblood of any excavator. When they fail, operations can come to a standstill. But what causes these failures, and how can you fix them? That’s where Jining Kunpeng comes in, with our expertise in excavator hydraulic pumps.

Excavator hydraulic pumps need regular maintenance and occasional repairs. We will walk you through the process of identifying common problems and providing professional solutions, right from your workshop.

Let us dive into the details and take you through a step-by-step guide to repairing your excavator hydraulic pump, backed by our extensive experience.

What Are the Common Problems with Excavator Hydraulic Pumps?

Leakages, excessive noise, and inefficiency are some of the typical issues with hydraulic pumps. How do you diagnose and fix them?

  1. Leaks: Inspect the seals and connections. Replace the damaged seals or tighten the connections.

  2. Noise: Check for air in the system, and ensure that the oil level is appropriate. Bleed the system if necessary.

  3. Inefficiency: Examine the pump components for wear and tear, and replace them if required.

How Can You Repair the Pump Yourself?

Assess the Damage

Inspect the hydraulic pump for visible damages. Look for cracks, wear, and contamination. Utilize the right tools and manuals for accurate diagnosis.

Remove the Pump

Disconnect the pump from the system and clean it thoroughly. Here’s a guide to disconnecting and cleaning.

Rebuild or Replace Parts

Based on the damage, either rebuild the pump with repair kits or replace the damaged parts.

When Should You Call a Professional?

Not all repairs can be handled in-house. Complex issues or complete failure might require professional intervention. Find a reputable service provider to assist you with your repair needs.

What are the Preventive Measures?

Regular maintenance and adherence to manufacturers’ guidelines can prevent common issues. Implement a routine maintenance schedule and use quality replacement parts.


Repairing an excavator hydraulic pump can be a complex but manageable task with the right knowledge and tools. At Jining Kunpeng, we stand with our clients, offering top-quality excavator hydraulic pump products and insights to ensure smooth operations. For professional assistance, don’t hesitate to contact us.

That’s it. Embrace the quality, reliability, and excellence of Jining Kunpeng.


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