14676708 fan pump For Volvo EC950 excavators

product parameters

Part No：14676708
Type：Variable Displacement Hydraulic Piston Fan Pump
Applicable Equipment：Volvo EC950 large excavator
Material：Ductile iron housing, alloy steel piston, tin-bronze valve plate, heavy-duty roller bearing
Surface Treatment：Black oxidation anti-rust treatment, ultrasonic internal cavity cleaning, thoroughly remove casting sand, metal scraps and burrs inside flow channel
Control Method：Electro-hydraulic proportional control, output flow varies with engine temperature signal
Feature：Variable piston structure, precise proportional control, stable flow output, low internal leakage, strong anti-pollution ability, direct OEM replacement, specially designed fan pump for Volvo EC950 cooling system
Working Temperature：-25℃ ~ +120℃
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

• **Custom heavy-duty design exclusively for Volvo EC950, perfectly matched with fan motor**
14676708 variable hydraulic piston fan pump is tailor-made for Volvo EC950 large excavator. It works synchronously with supporting fan motor. Output hydraulic flow automatically adjusts following engine coolant temperature, matching heavy-load heat generation and effectively solving overheating risks under continuous heavy-duty working conditions.
• **Precise proportional flow control & stable pressure output, low internal leakage**
Precision ground piston, valve plate and swash plate assembly. Optimized clearance and sealing structure. Deliver accurate flow regulation under varying load conditions. Low volumetric leakage reduces energy loss and improves overall cooling efficiency.
• **High-strength ductile iron housing, outstanding shock & vibration resistance**
Ductile iron shell treated by stress relief annealing to eliminate residual internal stress. Strong impact resistance and vibration resistance, suitable for long-term operation in mining and quarry sites. Less shell deformation and slower wear of internal components for longer service life.
• **Optimized internal flow channel & upgraded friction pair, enhanced anti-cavitation and anti-contamination capability**
Redesigned internal flow path reduces oil turbulence and cavitation risk. Tin-bronze valve plate improves wear resistance. It can tolerate hydraulic oil with minor impurity content, effectively preventing particle jamming, abnormal noise and premature component wear, minimizing machine downtime.
• **Intelligent cooling power regulation to protect core engine components**
Electro-hydraulic proportional control realizes intelligent cooling power adjustment. It keeps engine and hydraulic components operating within optimal temperature range, avoiding thermal fatigue damage to radiator and engine caused by overheating. It is the premium replacement part for Volvo EC950 overhaul and daily maintenance.

FAQ 

Q1: Which machine model does 14676708 fan pump fit? Can it be used on other Volvo excavators?
A1: Part 14676708 fan pump is specially designed for Volvo EC950 large excavator. It belongs to the cooling hydraulic system and cannot be universally used for other excavator models. It must be paired with the corresponding fan motor. Wrong selection will lead to insufficient hydraulic supply and machine overheating.

Q2: What tests will be carried out before delivery?
A2: Every fan pump undergoes complete hydraulic bench tests before shipment, including flow characteristic test, proportional response test, burst pressure test and internal leakage inspection. Strict quality control ensures stable performance in tough site conditions. Test reports can be provided upon customer request.

Q3: What points need attention during installation and commissioning?
A3: Direct replacement without modification. After installation, bleed air from the cooling hydraulic circuit and check pump rotation direction. If the machine still overheats after startup, check the cleanliness of hydraulic oil and the proportional control signal of the fan pump.

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