Causes of Damage and Repairs to Excavator Hydraulic Pumps

The hydraulic pump in the excavator is an extremely important component of the excavator's hydraulic system. This pump is responsible for supplying hydraulic oil under high pressure to control and perform various functions of the excavator, including digging, lifting, rotating and moving. Over time, long-term use can lead to damage to the pump, so we need to regularly check the pump and detect and correct errors. To better understand the causes of damage and how to repair excavator hydraulic pumps, join Truong Linh Parts to learn through the article below.

1. Causes of damage to excavator hydraulic pumps

The hydraulic pump on an excavator can be broken or damaged for many different reasons. This is because the excavator's operating mode is often in very harsh environments such as dust, outdoors, high and low temperatures, rain and wind, so both the hydraulic system and the pump will be affected when used. used in this environment. Below are some common causes of excavator hydraulic pump failure:

Wear and corrosion: Wear and corrosion are the main causes of hydraulic pump failure. Due to constant pressure and friction, the parts inside a hydraulic pump can wear out over time.

Dirt and dirt: Dirt and dirt can enter the hydraulic system, causing pump parts to clog or fail.

Hydraulic oil of incorrect quality or incorrect type: Using hydraulic oil of incorrect quality or incorrect type can affect the operation of the hydraulic pump.

Pressure too high or too low: Hydraulic pressure that is not properly regulated can cause pump failure.

Improper use: Improper use of the excavator or operating the excavator in extremely harsh conditions can cause damage to the hydraulic pump.

Poor design: In some cases, hydraulic pumps can fail due to poor design or any manufacturing defect.

Engine life span: Hydraulic pumps also have a lifespan and will experience wear. Once the engine has reached its end of life, it may have problems and need to be replaced.

Hydraulic pump loss of pressure: Caused by wear of the working pistons in the cylinder block. Open the suction line. Pressure valve settings are not correct. Poor alignment between pump shaft and motor shaft, etc.

To prevent hydraulic pump failure, perform routine maintenance, use high-quality hydraulic oil, and operate the excavator according to the manufacturer's instructions. In addition, regular inspection and maintenance are important to detect problems early and fix them before they become serious.

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