Product Overview

The 3G2806, 3G2807, 4J2401, 4J8478, 4J8481 30VQ CAT Hydraulic Vane Pump Parts Repair Kit is a high-quality aftermarket solution designed to restore the optimal performance of your Caterpillar (CAT) hydraulic vane pumps. This comprehensive repair kit, specifically tailored for the 30VQ series, ensures reliable operation and extends the service life of your hydraulic systems. Manufactured to meet or exceed OEM specifications, our kit provides a cost-effective and dependable alternative for maintaining your heavy machinery.

Product Parameters

• Part Numbers: 3G2806, 3G2807, 4J2401, 4J8478, 4J8481

• Pump Series Compatibility: 30VQ Series CAT Hydraulic Vane Pumps (also compatible with various Vickers Vane Pump series where applicable for CAT equipment)

• Type: Hydraulic Vane Pump Repair Kit / Cartridge Kit

• Material: High-grade alloys and durable sealing materials for longevity and performance

• Interchangeability: Direct replacement for OEM parts, ensuring seamless fit and function

• Performance: Engineered for optimal pressure, flow, and efficiency in demanding hydraulic applications

• Contents: Typically includes vanes, rotor, cam ring, pressure plates, seals, and other essential components for a complete overhaul (actual contents may vary by specific kit configuration)

Product Advantages and Selling Points

• Superior Quality: Manufactured with precision using robust materials to ensure durability and extended operational life, matching or surpassing OEM standards.

• Cost-Effective Solution: Provides a high-performance alternative to expensive OEM replacements, significantly reducing maintenance costs without compromising quality.

• Enhanced Performance: Restores hydraulic pump efficiency, pressure, and flow, ensuring your machinery operates at its peak capacity.

• Comprehensive Kit: Includes all necessary components for a thorough repair, simplifying the maintenance process and reducing downtime.

• Wide Compatibility: Designed for specific CAT pump series, ensuring perfect fit and reliable operation across a range of heavy equipment.

• Reliability: Engineered for demanding applications, offering stable and consistent hydraulic power under various operating conditions.

Applicable Equipment

This repair kit is suitable for various Caterpillar (CAT) heavy machinery and equipment utilizing the specified 30VQ series hydraulic vane pumps. Key applications include:

• CAT Wheel Loaders: Such as 944, 950, 960, 963, 973, 966C, 966D, 966E.

• CAT Crawler Loaders: Including D8H, D8K, D7E.

• CAT Backhoe Loaders: Models like 446B, 446D.

• CAT Tractors: Including D10N, D10R, 58L, 59L, 59N.

• CAT Excavators: Such as E336GC.

• Also compatible with relevant Vickers Vane Pump series (V10, V20, 35VMQ, VMQ35) used in CAT equipment.

Application Scenarios and Case Studies

Hydraulic vane pumps are vital components in a wide array of heavy-duty applications, providing the necessary power for various functions. Our repair kit ensures these critical systems remain operational.

Typical Application Scenarios:

• Construction Sites: Powering the hydraulic systems of excavators, loaders, and backhoes for digging, lifting, and material handling.

• Agriculture: Used in large agricultural machinery for functions like steering, lifting implements, and operating hydraulic motors.

• Mining Operations: Essential for heavy mining equipment where robust and reliable hydraulic power is critical for continuous operation.

• Industrial Manufacturing: Employed in various industrial hydraulic presses, machinery, and automation systems requiring steady and controlled fluid power.

• Waste Management: Powering compactors, balers, and other hydraulic equipment in waste processing facilities.

Case Study Example:

A construction company experienced frequent pressure drops and reduced lifting capacity in their CAT 966E Wheel Loader. Diagnostic checks revealed significant wear on the vanes and cam ring of the hydraulic pump. Instead of a costly full pump replacement, they opted for our 30VQ series repair kit. After installation, the loader's hydraulic system was restored to full operating pressure and flow, allowing it to efficiently handle heavy loads, significantly improving productivity and saving substantial repair costs. The easy interchangeability and comprehensive nature of the kit minimized downtime, getting the equipment back to work quickly.

Related Similar Products

Beyond this specific kit, we offer a range of repair solutions for other CAT hydraulic vane pump series and related components. These include:

• CAT Hydraulic Vane Pump Cartridge Kit 1U3953A / 1U-3953A: Compatible with CAT Wheel Loaders (e.g., 944, 950, 960, 963, 973) and Crawler Loaders (D8H, D8K, D7E).

• CAT Hydraulic Vane Pump 4T6847: For CAT 966D 966E Wheel Loaders.

• CAT Hydraulic Vane Pump 6E5831: Found in various construction machinery.

• CAT Hydraulic Vane Pumps 121-3409, 2H-6338, 4J-0520, 175-7904: General CAT hydraulic pump components.

• Vickers V10, V20, 35VMQ, VMQ35 Series Cartridge Kits: Commonly used in conjunction with or as replacements for certain CAT hydraulic pump applications.

• Other Vane Pump Repair Kits: Covering a broad spectrum of hydraulic vane pump models and manufacturers.

These products are designed for specific hydraulic pumps found in similar heavy equipment, including excavators, loaders, bulldozers, and industrial hydraulic systems.

Common Installation and Maintenance Issues & Solutions

Proper installation and regular maintenance are crucial for the longevity and efficiency of hydraulic vane pumps. Here are common issues and their solutions:

1. Fluid Contamination

Issue: Dirty fluid is the most common cause of premature wear, leading to damaged vanes, rotors, and seals. Contaminants can be abrasive particles, water, or metal chips.

Solution: Implement stringent filtration protocols. Regularly check and change hydraulic fluid using high-quality oil with proper anti-wear additives. Do not assume new fluid is clean; filter it if necessary. Ensure the reservoir is clean and sealed.

2. Cavitation and Aeration

Issue: Air bubbles forming (cavitation) or air entering the system (aeration) can cause significant damage due to implosion, leading to noise, vibration, and component erosion.

Solution: Maintain correct fluid levels in the reservoir. Inspect suction lines, fittings, and seals for air leaks. Ensure proper pump inlet conditions and avoid excessive vacuum pressure. Bleed air from the system if necessary.

3. Wear and Tear

Issue: Continuous operation leads to wear of internal components like vanes, rotor, cam ring, and seals, reducing pump efficiency and pressure.

Solution: Conduct regular inspections for wear. Replace worn or damaged components promptly using high-quality repair kits. Lubricate moving parts during assembly and ensure the correct oil viscosity.

4. Overheating

Issue: Excessive heat damages seals and degrades hydraulic fluid, leading to component failure and reduced lubrication.

Solution: Monitor operating temperature. Ensure sufficient fluid levels. Verify the cooling system (e.g., oil cooler) is clean and functioning correctly. Check for flow restrictions and use the specified type and viscosity of hydraulic fluid.

5. Leaks

Issue: External leaks indicate failing seals, gaskets, or loose connections, leading to fluid loss and potential air intrusion.

Solution: Regularly inspect all connections, fittings, and seals for signs of leakage. Replace worn or damaged seals/gaskets immediately. Ensure all fasteners are tight and properly torqued during installation.

6. Incorrect Installation

Issue: Improper alignment, loose fasteners, or incorrect assembly of cartridge components can lead to premature pump failure, noise, and reduced performance.

Solution: Always follow the manufacturer's installation guidelines meticulously. Ensure all components are correctly aligned and secured. Verify the correct direction of rotation for the cartridge assembly before startup.