O-RING 4356390 - Hitachi
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Genuine Quality O-RING for Hitachi Excavators - Part Number: 4356390
Ensure the optimal performance and prevent leakage in your Hitachi excavator with our high-quality O-RING 4356390. This durable and reliable O-ring is specifically designed for Hitachi machinery, guaranteeing a perfect fit and long-lasting performance.
At SWAFLY MACHINERY CO., LIMITED, we understand the importance of using genuine or high-quality aftermarket parts to keep your heavy equipment running smoothly. This O-ring meets stringent quality standards to ensure reliability in demanding applications.
SWAFLY MACHINERY CO., LIMITED - Your Trusted Partner for Excavator and Mining Equipment Parts
SWAFLY MACHINERY CO., LIMITED, established in 2009, is a leading specialist in excavator parts and mining equipment parts in China. With over 15 years of dedicated experience, we offer a comprehensive range of quality-trusted machinery engines, hydraulic pumps, and travel final motor drives.
We also supply agricultural tractor machinery engines from renowned brands like KUBOTA and Yanmar. Our company leverages extensive resources and integrates advanced technology from leading engine manufacturers. We operate specialized maintenance workshops and robust platforms for mechanical dismantling, engine and hydraulic system assembly maintenance, and regeneration, enabling us to provide complete machine and parts renewal services.
Our commitment extends to the timely development of cost-effective OEM or high-quality aftermarket products, ensuring global customers receive a full spectrum of aftermarket services.
Understanding Key Components: Hydraulic Pumps and Travel Final Motor Drives in Heavy Machinery
- Hydraulic Pump (液压泵): The heart of the hydraulic system, converting mechanical energy into hydraulic energy. It is typically installed on the engine. Example: Hitachi EX200-5 Hydraulic Pump, Part Number: 9143180.
- Travel Final Motor Drive (行走减速器): The final stage in the power transmission system that propels the machine. Located within the undercarriage, directly connected to the tracks or wheels. Example: Komatsu PC200-8 Travel Motor, Part Number: 20Y-27-00210.
- Main Pump (主泵): Usually a multi-section pump that supplies hydraulic power to various actuators like the boom, arm, and bucket. Mounted directly on the engine. Example: Caterpillar 320D Main Hydraulic Pump, Part Number: 326-4631.
- Swing Motor (回转马达): Powers the rotation of the upper structure of an excavator. Installed on the upper frame, connected to the swing gearbox. Example: Kobelco SK200-8 Swing Motor, Part Number: YB15V00001F1.
- Control Valve (控制阀): Directs the flow of hydraulic fluid to different parts of the machine. Usually located centrally in the hydraulic system for easy access. Example: Hyundai R225-7 Control Valve, Part Number: 31Q6-40300.
- Gear Pump (齿轮泵): A type of hydraulic pump used in various auxiliary systems or older machinery. Can be found in various locations depending on the application. Example: Liugong CLG856 Gear Pump, Part Number: SP104409.
- Axial Piston Pump (轴向柱塞泵): A common type of high-pressure hydraulic pump used in modern excavators. Typically engine-mounted. Example: Volvo EC210B Axial Piston Pump, Part Number: VOE14598608.
- Track Motor (行走马达): Another term for the travel final motor, responsible for track movement in excavators. Located in the undercarriage. Example: Doosan DX225LCA Track Motor, Part Number: 2713-1009.
- Pilot Pump (先导泵): A small pump that provides the pilot pressure for the main hydraulic control valve. Often mounted to the main hydraulic pump. Example: Sany SY215C Pilot Pump, Part Number: B220400000047.
- Fan Motor (风扇马达): Hydraulically驱动的马达，用于冷却发动机和液压油。通常安装在散热器附近。 Example: John Deere 350D Fan Motor, Part Number: AT310597. (Hydraulically driven motor used for cooling the engine and hydraulic oil. Usually installed near the radiator.)
Frequently Asked Questions
- What are the common causes of hydraulic pump failure in excavators? Common causes include contamination in the hydraulic fluid, overheating, cavitation due to low fluid levels or restricted intake, and wear and tear over time.
- How often should I replace the hydraulic filters in my mining equipment? It is generally recommended to replace hydraulic filters every 500 to 1000 hours of operation, or as specified by the manufacturer's maintenance schedule.
- What are the signs of a failing travel final motor drive? Signs can include reduced travel speed, inability to move in one direction, unusual noises from the undercarriage, and hydraulic leaks around the motor.
Common Engine Problem and Solution: Overheating
Engine Overheating:
Symptom: The engine temperature gauge is consistently high, steam might be visible, and the engine may lose power or shut down.
Possible Causes:
- Low coolant level
- Faulty thermostat
- Leaking radiator or hoses
- Clogged radiator fins
- Defective water pump
- Loose or broken fan belt
Troubleshooting Steps:
- Safely stop the machine and allow the engine to cool down.
- Check the coolant level and top up if necessary.
- Inspect the radiator and hoses for leaks.
- Ensure the fan belt is in good condition and properly tensioned.
- Check the radiator fins for any obstructions and clean them carefully.
- If the problem persists, it may indicate a faulty thermostat or water pump, requiring professional inspection and repair.
Our Business Scope Includes:
SWAFLY MACHINERY CO., LIMITED specializes in providing high-quality excavator parts, mining equipment parts, and agricultural tractor machinery engines (KUBOTA, Yanmar). Our core offerings include a wide selection of machinery engines, hydraulic pumps, and travel final motor drives. We are dedicated to offering both OEM and reliable aftermarket solutions to meet the diverse needs of our global clientele. Our comprehensive services encompass maintenance, mechanical dismantling, engine and hydraulic system assembly repair, and parts regeneration. We strive to deliver cost-effective and quality-assured products with exceptional aftermarket support.
Visit our website for more information: www.hitachi-isuzuparts.com
Mobile/WeChat/WhatsApp: +86 13570162348
Email: sales05@swaflyexcavator.cn
Email: sales05@swaflyexcavator.cn
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