14525545 fan pump For Volvo EC330B excavator

product parameters

Part No：14525545（VOE14525545）
Type：Hydraulic Gear Fan Pump
Applicable Equipment：Volvo EC330B, EC360B, EC460B large excavator
Material：Ductile iron housing, high-strength alloy steel gear pair, tin-bronze bearing bush, FKM fluorine rubber sealing rings
Surface Treatment：Black oxidation anti-rust treatment, ultrasonic internal cavity cleaning, thoroughly remove casting sand, metal scraps and burrs inside flow channel
Control Method：Fixed displacement gear structure, output flow changes with pump rotating speed
Feature：Heavy-duty gear structure, low pressure pulsation, stable flow output, low internal leakage, strong anti-pollution ability, direct OEM replacement, specially designed fan pump for Volvo B-series excavator cooling system
Working Temperature：-25℃ ~ +120℃
Rated Rotation Speed：1600 rpm, Max allowable speed:2200 rpm
Package：Independent anti-rust vacuum packing + Standard export carton
Storage suggestion：Keep dry, avoid moisture, rust and collision, indoor constant temperature storage, stay away from corrosive gas

• **Heavy-duty gear pump designed for Volvo EC330B/EC360B/EC460B, perfectly matched with original fan motor**
14525545 hydraulic gear fan pump is tailor-made for Volvo B series large excavators. It works synchronously with the original fan motor. Stable hydraulic flow drives cooling fan to dissipate heat continuously, effectively solving the overheating problem during long-time heavy-load excavation and rock digging operations.
• **Precision hobbed gear pair with optimized clearance, low pulsation and low power consumption**
Alloy steel gear pair adopts high-precision hobbing process and optimized fit clearance. Oil delivery is smooth under fluctuating load conditions. Low volumetric leakage reduces power loss and improves overall cooling efficiency of the whole machine.
• **Solid ductile iron housing with stress relief treatment, excellent impact and vibration resistance**
Ductile iron housing after stress relief annealing eliminates internal residual stress. It can cope with frequent impact and vibration in rock and quarry sites. The housing is not easy to deform, slowing down wear of internal gears and bearings and extending service life.
• **Optimized internal flow path and upgraded FKM sealing assembly, good anti-cavitation & high temperature resistance**
Redesigned internal flow channel reduces oil turbulence and cavitation risk. FKM seal set delivers outstanding high-temperature and aging resistance. It tolerates minor impurities in hydraulic oil and effectively prevents particle jamming, abnormal noise and premature component wear, minimizing unexpected machine downtime.

FAQ 

Q1: What is the difference between VOE14525545 and 14525548 fan pump? Can they replace each other?
A1: 14525545 and 14525548 have different displacement and port layout. They cannot be cross-used. Please check the part number stamped on your old pump housing before ordering to avoid wrong purchase.

Q2: Can this fan pump still work normally if the hydraulic oil temperature rises sharply during heavy load?
A2: This pump adopts high temperature resistant FKM seals and optimized flow channel design, which can withstand short-term high oil temperature. But long-term continuous operation above 110℃ will accelerate seal aging and gear wear, which is not recommended.

Q3: What is the main reason for pressure drop after pump installation?
A3: The main causes include insufficient oil supply, air trapped inside the pipeline, excessive internal wear of the matched fan motor, or clogged hydraulic filter. Check these items one by one for troubleshooting.

Q4: What is the storage requirement for this gear fan pump before installation?
A4: Keep the pump in dry indoor environment, do not remove the protective plastic plugs on oil ports. Avoid direct sunlight and humid environment. The recommended storage period is within 12 months before installation.

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