12736393 hydraulic fan motor For Volvo G900 series motor grader

product parameters

Part No：12736393（VOE12736393）
Type：Fixed Displacement Hydraulic Fan Motor
Applicable Equipment：Volvo G900B, G900C, G946B, G970, G976 Motor Grader
Material：Ductile iron housing, alloy steel piston & rotor assembly, tin-bronze bearing, 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：Hydraulic drive, rotation speed changes with inlet hydraulic flow
Feature：Compact fixed displacement motor structure, stable torque output, low speed fluctuation, low internal leakage, strong anti-pollution ability, direct OEM replacement, specially designed fan motor for Volvo G900 grader cooling system
Working Temperature：-25℃ ~ +120℃
Rated Rotation Speed：1500 rpm, Max allowable speed:2100 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

• **Custom heavy-duty fan motor designed for Volvo G900 series grader, perfectly matched with original cooling fan pump**
12736393 hydraulic fan motor is tailor-made for Volvo G900 series motor graders. It cooperates seamlessly with the original fan pump. Stable output torque drives cooling fan rotation, efficiently dissipating heat during continuous road grading and earthmoving work and preventing engine overheating under long-time heavy load.
• **Precision ground piston & rotor assembly, low speed fluctuation and high transmission efficiency**
Alloy steel piston and rotor assembly adopts high-precision grinding process and optimized fit clearance. It delivers steady torque under variable load conditions. Low volumetric leakage reduces power loss and improves overall cooling system efficiency of the grader.
• **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.
• **Reliable hydraulic torque output to protect engine and radiator against thermal overload damage**
This fixed displacement fan motor provides stable rotary power for cooling fan. It maintains engine and hydraulic components operating within optimal temperature range, preventing thermal fatigue damage of radiator and engine caused by sustained high temperature, ideal replacement for overhaul and daily maintenance of Volvo G900 series graders.

FAQ 

Q1: What type of fan blade can be installed on this 12736393 fan motor?
A1: It is equipped with standard threaded fan shaft, compatible with original Volvo G900 series plastic or metal cooling fan blades. Please check the hole pattern of fan blade before assembly.

Q2: Can this fan motor be fitted on Volvo G930 or G990 grader models?
A1: 12736393 is mainly designed for G900B/G900C/G946B/G970/G976. Some G930/G990 use different displacement fan motors. Please verify the old part number before ordering to avoid mismatch.

Q3: What is the main reason for fan motor rotating slowly after replacement?
A3: The main reasons include insufficient oil supply from matched fan pump, blocked inlet filter, excessive internal friction of motor, or low hydraulic system pressure. Check the hydraulic system pressure and oil circuit one by one.

Q4: What maintenance should be carried out for the fan motor during regular machine service?
A4: Check for oil leakage at shaft seal and connection ports. Inspect fan shaft for bending. Replace hydraulic oil and filter according to service cycle to keep oil clean and reduce internal wear of motor.

Q5: What is the warranty exclusion for this hydraulic fan motor?
A5: Warranty does not cover damage caused by contaminated hydraulic oil, foreign object impact on fan blade, over-speed operation, wrong hydraulic pressure setting or unauthorized disassembly of the motor.

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