P3100 P5100 P7600 Series Hydraulic Pump | P3100C586MZZF15-87 | Wheel Loader Gear Pump

LIC Hydraulic’s P3100, P5100, and P7600 Series high-pressure cast iron gear pumps are the definitive “heavy-duty” solution for wheel loader hydraulic systems. Based on the legendary three-piece construction, these pumps are engineered to survive the most demanding digging and lifting cycles. Specifically designed for models like P3100C586MZZF15-87, we guarantee 100% Drop-in Interchangeability with original OEM parts. Featuring high-tensile cast iron bodies and hardened alloy gears, these units are rated for continuous operation at 3000 PSI. Every pump is 100% factory performance-tested under simulated load conditions to ensure peak efficiency and zero-defect reliability for global mining and construction machinery.

Technical Specifications (Bulleted List)

• Series Models: P3100, P5100, P7600 Series (Axial Piston/Gear technology)

• Max Continuous Pressure: 210 bar (3000 PSI)

• Peak Pressure: 241 bar (3500 PSI)

• Max Rotation Speed: 2400 RPM

• Housing Material: High-tensile Gray Iron for maximum structural rigidity.

• Configuration: Available in Single, Tandem, or Triple section designs.

• Shaft & Mounting: Standard SAE Splined or Keyed shafts with multi-bolt flange options.

Key Technical Advantages

• Rugged Cast Iron Construction: The gray iron body offers superior fatigue resistance and lower thermal expansion than aluminum alternatives, preventing internal bypass even under thermal and pressure spikes.

• Pressure-Balanced Wear Plates: Utilizing advanced hydrostatic balance technology, these plates automatically compensate for axial clearances, maintaining >90% volumetric efficiency throughout the pump’s life.

• Heavy-Duty Journal Bearings: Designed with reinforced sleeve bearings that absorb the radial shocks and vibrations inherent in loader breakout operations, drastically extending MTBF (Mean Time Between Failures).

• Tandem Pumping Capability: Modular architecture allows for stacking multiple pump sections on a single drive shaft, enabling independent flow for steering and implement functions from one PTO.

Application Areas

• Wheel Loaders: Main hydraulic source for boom lift, bucket tilt, and steering circuits.

• Construction Equipment: Auxiliary power for road rollers, graders, and compactors.

• Refuse Vehicles: High-pressure power for garbage compactor lift and ejection mechanisms.

Expert Maintenance Tips

• Inlet Vacuum Inspection: Large displacement pumps like the P3100 are prone to suction issues. Ensure the inlet hose and seals are airtight. Air ingestion will lead to immediate cavitation, characterized by a sharp “metallic” noise.

• Oil Cleanliness Standard: Maintain system filtration at ISO 4406 19/17/14 or better. Protecting the precision-machined gear teeth and wear plates is essential for maintaining hydraulic speed.

• Cold Start Protocol: In low-temperature environments, idle the machine for 5-10 minutes. High-viscosity “cold” oil can cause excessive internal pressure and lack of lubrication, leading to premature wear of the internal bushings.