VALVE;BALL 4203434 - Hitachi
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Genuine Hitachi VALVE;BALL - Part Number 4203434
Looking for a reliable and high-quality replacement part for your Hitachi machinery? SWAFLY MACHINERY CO., LIMITED offers the original Hitachi VALVE;BALL with the specific part number 4203434. This is a crucial component for maintaining the optimal performance of your equipment.
Product Details
- Product Name: VALVE;BALL
- Brand: Hitachi
- Part Number: 4203434
At SWAFLY MACHINERY CO., LIMITED, we specialize in providing a comprehensive range of excavator parts and mining equipment parts in China. Founded in 2009, we have over 15 years of experience in the industry. Our expertise allows us to supply quality-trusted machinery engines, hydraulic pumps, and travel final motor drives.
We also cater to the agricultural sector, offering agricultural tractor machinery engines with renowned brands like KUBOTA and Yanmar.
Our company leverages resources and integrates the technology and experience of leading engine manufacturers. We operate maintenance workshops and have developed platforms for mechanical dismantling, engine, and hydraulic system assembly maintenance and regeneration. This enables us to offer a complete machine and parts renewal business.
We are committed to timely developing cost-effective OEM or high-quality aftermarket products, ensuring our global customers receive a full range of aftermarket services.
Technical Explanations of Hydraulic Pumps and Travel Final Motor Drives
1. Hydraulic Pump (液压泵)
Installation Location: Typically mounted on the engine or gearbox of the excavator/mining equipment, driven by the engine to convert mechanical energy into hydraulic energy.
Example: Kawasaki K3V112 Hydraulic Pump (安装于挖掘机/矿山设备的发动机或变速箱上，由发动机驱动，将机械能转化为液压能)
Part Number: K3V112DT-9C20 (This part number is a realistic example for this type of pump)
2. Travel Final Drive (行走减速机)
Installation Location: Located in the undercarriage of the excavator/mining equipment, directly connected to the track or wheels to provide the final reduction in speed and increase in torque for movement.
Example: Nachi PVD-2B-42P Travel Motor (安装于挖掘机/矿山设备的底盘上，直接连接到履带或车轮，提供最终的减速和扭矩增加以实现移动)
Part Number: PVD-2B-42P-6G5-4191A (This part number is a realistic example for this type of motor)
3. Gear Pump (齿轮泵)
Installation Location: Can be found in various locations depending on the system, often used for pilot circuits or auxiliary functions. (根据系统不同，安装位置可能不同，常用于先导回路或辅助功能)
Example: Rexroth AZPF-12-022RRR20MB Gear Pump
Part Number: AZPF-12-022RRR20MB (This part number is a realistic example)
4. Axial Piston Pump (轴向柱塞泵)
Installation Location: Typically the main hydraulic pump, mounted to the engine and responsible for the primary hydraulic power in the machine. (通常是主液压泵，安装在发动机上，负责机器的主要液压动力)
Example: Linde HPR130 Axial Piston Pump
Part Number: HPR130-02M55 (This part number is a realistic example)
5. Radial Piston Motor (径向柱塞马达)
Installation Location: Often used in the travel final drive or swing motor to provide high torque at low speeds. (常用于行走减速机或回转马达，在低速下提供高扭矩)
Example: Calzoni MRV-160 Radial Piston Motor
Part Number: MRV160-2-160-00 (This part number is a realistic example)
6. Swing Motor (回转马达)
Installation Location: Mounted on the upper structure of the excavator, responsible for rotating the cab and boom assembly. (安装在挖掘机的上部结构上，负责旋转驾驶室和动臂总成)
Example: Kayaba PSVL-54 Swing Motor
Part Number: PSVL-54CG-1 (This part number is a realistic example)
7. Pilot Pump (先导泵)
Installation Location: Usually a small gear pump mounted to the main hydraulic pump or engine, providing hydraulic pressure for the control valves. (通常是一个小型齿轮泵，安装在主液压泵或发动机上，为控制阀提供液压压力)
Example: Casappa PLP20 Pilot Pump
Part Number: PLP20.20S1-L1-F1-N (This part number is a realistic example)
8. Track Drive Motor (履带驱动马达)
Installation Location: Integrated within the travel final drive unit, directly powering the movement of the tracks. (集成在行走减速机单元内，直接驱动履带的运动)
Example: Eaton JMV-064 Track Drive Motor
Part Number: JMV064B-FR-05 (This part number is a realistic example)
9. Vane Pump (叶片泵)
Installation Location: Can be used for various auxiliary functions or in older machinery hydraulic systems. (可用于各种辅助功能或较旧的机械液压系统中)
Example: Vickers V20 Vane Pump
Part Number: V20-1B11-1A20 (This part number is a realistic example)
10. Hydraulic Motor (液压马达)
Installation Location: Used in various applications such as travel drives, swing mechanisms, and attachments. (用于各种应用，如行走驱动、回转机构和附件)
Example: Bosch Rexroth MCR05 Hydraulic Motor
Part Number: MCR05-A2X-250-F3-N (This part number is a realistic example)
Common Knowledge about Excavator and Mining Equipment Parts
1. What are the common causes of hydraulic pump failure in excavators? (挖掘机液压泵常见的故障原因有哪些？)
Common causes include contamination of hydraulic fluid, overheating due to insufficient cooling, cavitation caused by low inlet pressure, and wear and tear of internal components over time. (常见原因包括液压油污染、冷却不足导致过热、入口压力过低引起的空穴现象以及内部部件长期磨损。)
2. How often should I replace the hydraulic filters in my mining equipment? (我的矿山设备应该多久更换一次液压滤芯？)
The replacement frequency depends on the operating environment and the manufacturer's recommendations. Generally, hydraulic filters should be replaced every 500 to 1000 hours of operation or as indicated by the machine's maintenance schedule. (更换频率取决于操作环境和制造商的建议。通常，液压滤芯应每工作 500 到 1000 小时更换一次，或按照机器的维护计划进行更换。)
3. What is the function of a travel final drive in an excavator? (挖掘机行走减速器的作用是什么？)
The travel final drive reduces the high-speed, low-torque output from the hydraulic travel motor to a lower speed and higher torque, which is necessary to propel the excavator tracks or wheels. (行走减速器的作用是将液压行走马达输出的高速低扭矩转化为较低的速度和较高的扭矩，这是驱动挖掘机履带或车轮所必需的。)
Our Business
SWAFLY MACHINERY CO., LIMITED specializes in providing high-quality excavator parts and mining equipment parts. With our extensive experience and dedication to customer satisfaction, we are your trusted source for machinery engines, hydraulic pumps, travel final motor drives, and more. We supply both OEM and aftermarket parts, ensuring cost-effective solutions for your machinery maintenance and repair needs. Contact us today for reliable and durable parts for your Hitachi, KUBOTA, Yanmar, and other leading brands.
Engine Failure: Overheating (发动机故障：过热)
Symptom: The engine temperature gauge shows a reading in the red zone, accompanied by steam or coolant leaks, and a possible burning smell. (症状：发动机温度表读数在红色区域，伴有蒸汽或冷却液泄漏，并可能出现烧焦的气味。)
Possible Causes: Low coolant level, a faulty thermostat, a blocked radiator (internally or externally), a failing water pump, a loose or broken fan belt, or incorrect engine timing. (可能原因：冷却液液位低、节温器故障、散热器堵塞（内部或外部）、水泵故障、风扇皮带松动或断裂或发动机正时错误。)
Troubleshooting Steps:
- Safely stop the engine and allow it to cool down completely before attempting any repairs. (安全地停止发动机，并在尝试任何维修之前让其完全冷却。)
- Check the coolant level in the radiator and coolant reservoir. If low, check for leaks and replenish as needed. (检查散热器和冷却液膨胀箱中的冷却液液位。如果偏低，检查是否有泄漏并根据需要进行补充。)
- Inspect the radiator for any external blockages (dirt, debris) and clean if necessary. (检查散热器是否有外部堵塞（污垢、碎屑），如有必要进行清理。)
- Check the fan belt for proper tension and any signs of damage. Replace if necessary. (检查风扇皮带的张力是否合适以及是否有任何损坏迹象。如有必要，进行更换。)
- If the problem persists, it is recommended to consult a qualified mechanic to diagnose and repair potential issues with the thermostat, water pump, internal radiator blockage, or engine timing. (如果问题仍然存在，建议咨询合格的机械师，以诊断和维修节温器、水泵、散热器内部堵塞或发动机正时等潜在问题。)
Visit our website for more information:
Mobile/WeChat/WhatsApp: +86 13570162348
Email: sales05@swaflyexcavator.cn
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