Genuine SINOTRUK HOWO Gearbox Oil Tank Inlet Pipe Assembly (AZ2203240107) is a critical, yet often overlooked, component that ensures the vital input shaft bearings receive a constant supply of cooled, filtered gear oil. As a specialized piece of sinotruk spare parts, this pipe assembly is engineered for the precise flow and pressure requirements of the HW series transmissions (such as the HW19710 and HW25712), which rely on forced lubrication to survive the extreme heat and friction generated by high-speed, high-torque operation.
Technical Specifications
The AZ2203240107 is a precision-engineered component for the HW series gearbox lubrication system.
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Specification
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Value
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Part Number
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AZ2203240107
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Alternative Names
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Box Input Axis Oil Inlet Assembly, Gearbox Oil Intake Pipe
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Product Name
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Gearbox Oil Tank Inlet Pipe Assembly
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Compatible Transmissions
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HW19710, HW19712, HW25712 (HW Series)
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Compatible Vehicles
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SINOTRUK HOWO, HOWO A7, HOWO TX, SITRAK
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Brand
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SINOTRUK (Original OEM Specification)
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Material
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High-Grade Steel Tubing
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Key Feature
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Precision-machined fittings for leak-free forced lubrication
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Function
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Channels cooled oil to the input shaft bearings
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Condition
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Brand New
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Installation Notes
Installation of the gearbox oil inlet pipe assembly requires careful handling to prevent leaks and ensure proper oil flow.
1.Safety and Preparation: Ensure the gearbox is cool and the oil has been drained. Clean the mounting area thoroughly to prevent dirt from entering the transmission.
2.Removal: Carefully loosen the end fittings (often banjo bolts or flare nuts). Discard all old sealing washers (copper or bonded), as they are single-use items and reusing them is the primary cause of leaks.
3.Inspection: Inspect the mating surfaces on the gearbox housing for any scratches or damage. The surfaces must be perfectly clean and smooth.
4.Installation: Always use new sealing washers with the new AZ2203240107 assembly. Hand-thread the fittings first to ensure they are not cross-threaded. Position the pipe so it does not rub against other components.
5.Tightening: Secure the mounting brackets first. Then, tighten the end fittings to the manufacturer’s specified torque. Caution: Over-tightening steel fittings into the aluminum gearbox housing can strip the threads.
6.Post-Installation Check: Refill the gearbox with the correct grade of gear oil. Start the engine and allow the transmission to reach operating temperature. Re-inspect the fittings for any signs of oil seepage or leaks.
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