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Home > Agricultural Machinery Parts > High-Quality PG203656/AXE11707 ProDrive Main Hydraulic Axial Piston Pump Replacement for John Deere Combine STS Hillmaster S680 / S685 / S690 / S780 / S790 Manufacturer, Suppliers
High-Quality PG203656/AXE11707 ProDrive Main Hydraulic Axial Piston Pump Replacement for John Deere Combine STS Hillmaster S680 / S685 / S690 / S780 / S790 Manufacturer, Suppliers
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High-Quality PG203656/AXE11707 ProDrive Main Hydraulic Axial Piston Pump Replacement for John Deere Combine STS Hillmaster S680 / S685 / S690 / S780 / S790 Manufacturer, Suppliers

High-Quality PG203656/AXE11707 ProDrive Main Hydraulic Axial Piston Pump Replacement for John Deere Combine STS Hillmaster S680 / S685 / S690 / S780 / S790 Manufacturer, Suppliers

PG203656 and AXE11707 Main Hydraulic Axial Piston Pump Replacement are both core hydraulic components of the John Deere ProDrive series. Designed specifically for STS Hillmaster platform combine harvesters models S680 to S790, these main hydraulic axial piston variable displacement pumps serve as the “power heart” of the machine's hydraulic system. They provide high-pressure hydraulic power for the ProDrive hydrostatic drive system, threshing drums, cleaning sieves, grain tank lift, and header height adjustment. As the “power heart” of the machine's hydraulic system, it directly links the ProDrive hydrostatic drive system with the coordinated operation of working actuators. This makes it a critical core component ensuring high-horsepower harvesters operate efficiently in complex field conditions.

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Product Description

⚙️ Product Overview
PG203656 / AXE11707 Main Hydraulic Axial Piston Pump Replacement is a core hydraulic component specifically designed for the ProDrive series. This pump is a main hydraulic axial piston variable displacement pump primarily used in S-series combine models. It features contamination-resistant "hard-to-hard" rotating components and integrates a high-precision variable control mechanism to adapt to complex operating conditions and load variations encountered by harvesters.
📊 Specifications
Part Name Hydraulic Pump Part Number PG203656 / AXE11707
Product Type Main Hydraulic Axial Piston Pump Pump Type ProDrive Series Swash Plate Axial Piston Variable Displacement Pump
Origin China Quality OEM Standard
Weight 60.5 lb Height 7.2 in
Dimensions 8.3 in (W) x 12.7 in (L) Core Function High-pressure hydraulic power for hydrostatic drive systems
💎 Key Features
✅ OEM Compatibility Fully compatible with ProDrive systems, featuring identical mounting dimensions and control logic as original equipment.
🔋 Energy Efficiency Variable displacement control adjusts output based on load, reducing power loss and enhancing fuel economy.
🛡️ Rugged Durability Surface-hardened components and pressure-lubricated swashplates offer superior contamination resistance.
🔇 Low Noise & Stability Optimized valve plate design reduces operational noise and vibration for better operator comfort.
🎯 Precise Control Responsive proportional pilot control matches system speed commands for seamless coordination.
🚜 Compatible Models
S680 S680 PRECISION UPGRADES S680H S685 S685H S690 S690 PRECISION UPGRADES S690H S780 S790 STS Hillmaster
❓ Frequently Asked Questions
What is the relationship between PG203656 and AXE11707?
These represent different part numbers for the same pump model. AXE11707 is the original manufacturer's standard number, while PG203656 is a commonly used replacement part number. Both share identical performance and structural specifications.
Why is a ProDrive dedicated pump essential?
It integrates a hydraulic pilot proportional control module exclusive to the ProDrive system, achieving rapid response times (≤0.2s) and a contamination-resistant clearance compensation structure that standard pumps lack.
What specialized tools are required for replacement?
Essential tools include a 12.9-grade high-strength bolt socket, a torque wrench (±5% accuracy), hydraulic hose quick-connect tools, and specialized seal installation pliers. A torque wrench is mandatory to ensure specific N·m requirements are met.
Is pre-bleeding mandatory before installation?
Yes, pre-bleeding is mandatory to prevent cavitation. The procedure involves manually rotating the pump shaft 10-15 turns while loosening return line fittings until no bubbles emerge, ensuring the system is air-free.
How should maintenance intervals be set for new pumps?
Replace hydraulic oil after the initial 2000 hours, then every 4000 hours. Inspect seals every 1500 hours and perform pressure calibration every 3000 hours to ensure traceability and long-term performance.
How can I extend the pump lifespan during daily use?
Maintain high oil cleanliness (NAS 7 grade), avoid prolonged idling, and allow a 3-minute warm-up after cold starts. Never operate with oil levels below the minimum or wash the pump body directly with high-pressure water jets.

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