31N8-10051 hydraulic pump

The 31N8-10051 is a part number for a hydraulic pump used in Hyundai excavators, specifically in the R225-9A model. It is an axial piston hydraulic pump manufactured by Kawasaki Heavy Industries.

Here's some information about the 31N8-10051 hydraulic pump

Key Characteristics

Displacement 112 cubic centimeters per revolution (ccrev)

Control Type Dual flow path (DTP) for independent control of two hydraulic circuits

Pressure Rating High-pressure rating (specific value might vary depending on the exact model variant, but likely around 35 MPa or 5076 psi)

Function

The 31N8-10051 hydraulic pump serves as the main hydraulic pump in the Hyundai R225-9A excavator. It provides the necessary hydraulic power to operate various functions of the excavator, including

Arm and bucket movement Enables precise control for digging, lifting, and dumping operations.

Track drive Allows for maneuvering and positioning of the excavator.

Blade control (if equipped) Provides accurate control for grading and clearing tasks.

Attachment operation (breakers, augers, etc.) Supplies hydraulic power for various attachments.

Applications

The 31N8-10051 hydraulic pump is specifically designed for the Hyundai R225-9A excavator. However, similar Kawasaki hydraulic pumps with different part numbers might be used in other Hyundai excavator models within the 14-ton to 18-ton size class.

Verification

To confirm if the 31N8-10051 pump is the exact model used in your specific excavator, it's recommended to consult your excavator's operator's manual or contact a Hyundai dealership for verification. The manual should have a specifications section listing the part number of the hydraulic pump.

Maintenance and Replacement

Regular maintenance is crucial for the optimal performance and longevity of the 31N8-10051 hydraulic pump. Here are some general maintenance tips

Refer to the operator's manual It specifies the recommended type and viscosity of hydraulic oil, oil change intervals, filter replacement schedules, and fluid level checks.

Use high-quality hydraulic oil Following the manufacturer's recommendations ensures proper lubrication and protects the pump components.

Change the oil and filter regularly Clean oil and filters prevent contamination and maintain optimal performance.

Inspect the pump for leaks and damage Look for leaks, loose connections, or visible damage on the pump housing and surrounding components. Address any issues promptly to avoid further problems.

If the hydraulic pump needs replacement, opt for a genuine Kawasaki 31N8-10051 pump or a high-quality equivalent from a reputable manufacturer. Non-genuine replacements may compromise performance, reliability, and safety. Consult a qualified technician for pump replacement, as it involves specialized tools and procedures.

Safety Precautions

Hydraulic systems operate at high pressures and can cause serious injuries if not handled properly. Always follow safety procedures when working on the hydraulic system

Depressurize the system before any maintenance or repairs.

Wear appropriate personal protective equipment (PPE) such as gloves, safety glasses, and sturdy footwear.

Consult qualified technicians for complex procedures.

By following these tips, you can maintain the 31N8-10051 hydraulic pump in your Hyundai R225-9A excavator and ensure its optimal performance and longevity.

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