JOINT;SWIVEL 4303480 - Hitachi
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High-Quality Hitachi Swivel Joint - Part Number 4303480
Looking for a reliable and durable swivel joint for your Hitachi excavator? SWAFLY MACHINERY CO., LIMITED offers a premium aftermarket Hitachi Swivel Joint with the specific part number 4303480.
As a leading specialist in excavator parts and mining equipment parts in China, SWAFLY MACHINERY CO., LIMITED, founded in 2009, is your trusted source for quality-assured components. With over 15 years of dedicated experience, we excel in supplying a comprehensive range of machinery engines, hydraulic pumps, and travel final motor drives.
Product Details:
- Part Name: Swivel Joint
- Part Number: 4303480
- Brand: Hitachi
- Compatibility: Specifically designed for certain Hitachi excavator models. Please contact us to confirm compatibility with your machine.
- Aftermarket Part: Offers excellent performance and durability at a competitive price.
At SWAFLY MACHINERY CO., LIMITED, we leverage our extensive resources and technical expertise, gained from collaborating with leading engine manufacturers. Our capabilities include maintenance workshops, mechanical dismantling, engine and hydraulic system assembly maintenance and regeneration platforms, enabling us to provide a complete machine and parts renewal service. We are committed to developing cost-effective OEM and high-quality aftermarket products, ensuring a full spectrum of aftermarket services for our valued global customers. Our product range also extends to agricultural tractor machinery engines with KUBOTA and Yanmar brands.
Glossary of Engineering Machinery Components:
Hydraulic Pump (液压泵): The heart of the hydraulic system, converting mechanical power into hydraulic power. Location: Usually mounted on the engine or gearbox and connected to the hydraulic tank. Example: Hitachi EX200 Hydraulic Pump, Part Number: 9147283.
Travel Final Motor Drive (行走终传动马达): A hydraulic motor and gearbox assembly that propels the excavator tracks. Location: Attached to the undercarriage frame, directly driving the tracks. Example: Hitachi EX120 Travel Motor, Part Number: 9133168.
Main Control Valve (主控制阀): Directs hydraulic fluid flow to various actuators like cylinders and motors. Location: Typically located centrally in the hydraulic system for easy access and distribution. Example: Komatsu PC200 Main Control Valve, Part Number: 723-40-56901.
Hydraulic Cylinder (液压缸): Converts hydraulic power into linear mechanical motion. Location: Used in the boom, arm, and bucket of the excavator. Example: Caterpillar 320 Bucket Cylinder, Part Number: 161-4111.
Pilot Valve (先导阀): A smaller valve that controls the operation of a larger main control valve. Location: Often mounted on or near the main control valve. Example: Kobelco SK200 Pilot Valve, Part Number: YN20S00002F1.
Swing Motor (回转马达): A hydraulic motor that allows the excavator's upper structure to rotate. Location: Mounted on the upper structure, connected to the swing gearbox. Example: Volvo EC210 Swing Motor, Part Number: VOE14524741.
Gear Pump (齿轮泵): A type of positive displacement pump where fluid is moved by the meshing of gears. Location: Can be used for various auxiliary functions in the hydraulic system. Example: Komatsu WB97 Gear Pump, Part Number: 705-52-30260.
Axial Piston Pump (轴向柱塞泵): A type of hydraulic pump that uses pistons in a rotating cylinder block to generate flow. Location: Commonly used as the main hydraulic pump in excavators. Example: Hitachi ZX330 Axial Piston Pump, Part Number: 9270591.
Hydraulic Oil Cooler (液压油冷却器): Dissipates heat from the hydraulic oil to maintain optimal operating temperature. Location: Typically located near the engine radiator or in the hydraulic return line. Example: Caterpillar 336 Hydraulic Oil Cooler, Part Number: 245-7817.
Track Motor (履带马达): Another term for the travel final motor drive, specifically emphasizing its role in driving the tracks. Location: Integrated within the undercarriage to power the tracks. Example: Volvo EC35 Track Motor, Part Number: 14606988.
Frequently Asked Questions:
- What are the common causes of hydraulic pump failure in excavators?
Common causes include contaminated hydraulic fluid, overheating, cavitation due to low fluid levels or clogged filters, and general wear and tear over time.
- How often should I check the hydraulic oil level in my excavator?
It is recommended to check the hydraulic oil level daily before operating the machine to ensure it is within the recommended range.
- What are the signs of a failing travel final motor drive?
Signs can include reduced travel speed, difficulty turning, unusual noises from the undercarriage, or oil leaks from the final drive unit.
Common Engine Problem and Solution:
Problem: Excavator Engine Won't Start
A common issue is when the excavator engine fails to start. This can be due to several reasons, including a dead battery, fuel system problems (such as low fuel, clogged fuel filters, or air in the fuel lines), or a faulty starter motor. Electrical issues like a blown fuse or a problem with the ignition switch can also be the cause.
Solution: Begin by checking the battery voltage and ensuring the connections are clean and tight. If the battery is low, try jump-starting it. Next, inspect the fuel level and check for any visible leaks or blockages in the fuel lines. Try priming the fuel system if necessary. If these steps don't work, the starter motor or other electrical components may need to be inspected by a qualified technician.
Our Business:
SWAFLY MACHINERY CO., LIMITED specializes in providing high-quality hydraulic pumps and travel final motor drives, along with a wide range of other excavator and mining equipment parts. We are committed to offering reliable products and excellent customer service to meet the diverse needs of our global clientele.
Visit our website for more information:
Contact us today for your parts inquiries:
Mobile/WeChat/WhatsApp: +86 13570162348
Email: sales05@swaflyexcavator.cn
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