A10VO45DFR1/31 hydraulic fan pump For XCMG 490 excavator

product parameters

Part No：A10VO45DFR1/31
Type：Variable Displacement Axial Piston Hydraulic Fan Pump
Applicable Equipment：XCMG XE490 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 XCMG XE490 fan motor for cooling system
Working Temperature：-25℃ ~ +120℃
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 XCMG XE490, Parker compatible, perfectly matched with original fan motor**
A10VO45DFR1/31 hydraulic fan pump is custom designed for XCMG XE490 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 XCMG XE490 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 XCMG XE490 excavators.

FAQ 

Q1: What mining working condition is A10VO45DFR1/31 suitable for?
A1: This pump is designed for XCMG XE490 heavy mining excavator, suitable for long-time continuous rock excavation, high dust and heavy vibration quarry operation.

Q2: Can this pump be fitted on XCMG XE470 or XE550?
A2: This pump is customized for XE490. XE470 and XE550 adopt different displacement and installation dimensions, not interchangeable. Confirm part number before placing order.

Q3: What preparations should be completed before installing this Parker compatible fan pump?
A3: Clean the whole hydraulic pipeline thoroughly, check the fan motor condition and test hydraulic oil cleanliness. Dirty oil or seized fan motor will lead to overload and damage pump internal components rapidly.

Q4: What causes fan speed can’t reach maximum after pump replacement?
A4: Main reasons: insufficient pump output pressure, trapped air inside hydraulic circuit, DFR1 compensator setting deviation or clogged return filter. Bleed air and calibrate compensator pressure step by step.

Q5: What maintenance schedule for A10VO45DFR1/31 in mining site?
A5: Replace hydraulic oil and filter elements on schedule, keep oil cleanliness at NAS7 level or better. Inspect shaft seal leakage and DFR1 control response every 1500 working hours.

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