A10VO45DFR1/31 hydraulic fan pump For LiuGong 950 excavator

product parameters

Part No：A10VO45DFR1/31
Type：Variable Displacement Axial Piston Hydraulic Fan Pump
Applicable Equipment：LiuGong 950 Excavator
Control Mode：DFR1 Pressure-Flow Compound Control
Material：High-strength cast iron housing, alloy steel piston & cylinder block assembly, copper alloy valve plate, tin-bronze bearing, FKM fluorine rubber sealing rings
Surface Treatment：Precision machining, surface hardening, anti-corrosion coating
Drive Method：Engine direct drive
Nominal Working Pressure：28 MPa
Max Instantaneous Peak Pressure：35 MPa
Feature：Parker compatible A10VO series variable pump, DFR1 integrated control, fast response, low internal leakage, high power density, direct OEM replacement, matched with LiuGong 950 fan motor for cooling system
Package：Independent anti-rust packing + Standard export wooden case
Storage suggestion：Keep dry, avoid moisture, rust and collision, indoor constant temperature storage, stay away from corrosive gas

• **Heavy-duty A10VO45DFR1/31 variable piston fan pump tailor-made for LiuGong 950, Parker compatible, perfectly matched with original fan motor**
A10VO45DFR1/31 hydraulic fan pump is custom designed for LiuGong 950 excavator. It provides adjustable hydraulic flow to matched fan motor. Reliable variable hydraulic power supply ensures the cooling fan can automatically adjust speed under heavy-load rock excavation and long-hour continuous operation, preventing engine overheating.
• **Precision hardened piston & cylinder block assembly, stable variable output and fast DFR1 response**
Alloy steel piston and cylinder block assembly adopts precision grinding and surface hardening process. DFR1 controller can quickly adjust pump displacement with pressure change. Volumetric efficiency is kept at high level to guarantee stable adjustable hydraulic oil supply for cooling circuit.
• **Full hydraulic bench inspection before delivery, high interchangeability for direct plug-and-play replacement**
Each A10VO45DFR1/31 fan pump passes flow, pressure, variable response and durability hydraulic bench test. All mounting dimensions, port positions and spline shaft fully match OEM specifications. Direct installation without modification, shortening equipment downtime and cutting maintenance cost.
• **Adjustable hydraulic power supply to protect engine and cooling hydraulic system**
This A10VO45DFR1/31 variable piston fan pump provides adjustable pressurized oil for LiuGong 950 fan motor. It maintains cooling hydraulic system operating normally, preventing engine thermal damage caused by insufficient fan power or slow speed adjustment, ideal replacement for overhaul and daily maintenance of LiuGong 950 excavators.

FAQ 

Q1: Can A10VO45DFR1/31 fit other LiuGong excavator models?
A1: This pump is customized for LiuGong 950. Other LiuGong large models adopt different control parameters and mounting dimensions, not interchangeable. Please confirm part number before order.

Q2: What inspection items are required before installing this Parker compatible fan pump?
A2: Check hydraulic oil cleanliness, inspect fan motor performance, and clean hydraulic pipeline thoroughly. Dirty oil or seized fan motor will cause overload and damage the pump internal components quickly.

Q3: What causes fan hunting / unstable fan speed after pump replacement?
A3: Common reasons: air trapped in hydraulic circuit, contaminated hydraulic oil, stuck DFR1 control valve, or incorrect pre-set compensator pressure. Bleed air and calibrate control pressure step by step.

Q4: What maintenance requirements for A10VO45DFR1/31 in mining working condition?
A4: Replace hydraulic oil and filter elements on schedule, keep hydraulic oil cleanliness at NAS7 level or better. Check pump shaft seal leakage and DFR1 control response every 1500 working hours.

warehouse