John Deere F070823 Hydraulic Pump & Motor | 1270E 1170E 1070E 1470E | Forestry Machinery Hydraulics

The F070823 Series hydraulic pumps and motors from Chengyuan Hydraulic are high-performance power components specifically engineered for John Deere E-Series forestry machinery (Harvesters & Forwarders). These units are extensively used in models such as 1070E, 1110E, 1170E, 1210E, and 1270E. Designed for the high-load and high-frequency demands of forestry operations, we utilize reinforced cast-iron housings and high-precision piston groups. Every F070823 unit undergoes 100% simulated forestry load testing before shipment to ensure stability in extreme temperature cycles, guaranteeing 100% original-place interchangeability.

Technical Specifications :

• OEM Part Numbers: F070823, F685413, F072314

• Compatible Machines: John Deere 810E, 1010E, 1070E, 1110E, 1170E, 1210E, 1270E

• Rated Operating Pressure: 350 bar (35 MPa)

• Peak Pressure: 400 bar (40 MPa)

• Control Types: Constant Power (LR), Load Sensing (DRG/DFR), Electric Proportional (EP)

• Housing Material: Reinforced Ductile Iron (for shock absorption)

• Sealing: High-grade Viton, temperature range -30°C to +110°C

• Rotation: Clockwise (R) or Counter-clockwise (L) configurations available

Key Technical Advantages:

• Forestry-Grade Reinforced Bearings: To handle the frequent felling shocks and load surges of the 1270E, we use heavy-duty tapered roller bearings. This enhances axial and radial load capacity, significantly extending service life under side loads.

• High Volumetric Efficiency Piston Group: The piston-to-cylinder fit utilizes specialized matching-grinding technology with nitrided surfaces. Even under 350 bar continuous pressure, internal leakage is minimized, ensuring maximum breakout force for harvester heads.

• Superior Low-Temperature Startup: Optimized for global cold-weather forestry sites, the internal valve plate flow paths reduce resistance during cold-oil starts, preventing cavitation damage at startup.

• Precision Control Regulators: The regulator assemblies are factory-calibrated to match John Deere’s original hydraulic logic, ensuring smooth machine operation and optimal fuel efficiency.

Application Areas:

• Forestry Harvesters: Serving as the main pump to power harvesting head functions like feeding and sawing.

• Forwarders: Driving travel motors or crane hydraulic systems.

• Heavy-Duty Transmission: Suitable for any high-pressure closed or open-loop hydrostatic circuits.

Expert Maintenance Tips:

• Cold Start Warm-up: In extreme cold, always perform a low-speed warm-up cycle. This prevents cylinder block fractures caused by high oil viscosity.

• Strict Filtration Schedule: Forestry sites are debris-heavy. Replace high-precision pressure filters every 500 hours to prevent hard particles from scoring the piston chambers.

• Case Drain Management: Ensure the drain lines are unobstructed. Excessive case backpressure is the primary cause of shaft seal leaks in the F070823 series.