BUSHING 4354850 - Hitachi_Diesel Engine_Products

High-Quality Hitachi BUSHING - Part Number 4354850

Introducing the durable and reliable Hitachi BUSHING with the specific part number 4354850. This bushing is designed to provide optimal performance and longevity for your Hitachi earthmoving machinery, construction equipment, and mining machinery. Ensure smooth operation and reduce downtime with this quality component.

SWAFLY MACHINERY CO., LIMITED is your trusted source for a comprehensive range of high-quality excavator parts and mining equipment parts in China. Established in 2009, with over 15 years of experience, we specialize in providing quality-trusted machinery engines, hydraulic pumps, and travel final motor drives.

We leverage our extensive resources and technical expertise, gained from years of working with leading engine manufacturers. Our capabilities include maintenance workshops, mechanical dismantling, engine and hydraulic system assembly maintenance, and regeneration platforms, enabling us to offer a complete machine and parts renewal business.

SWAFLY MACHINERY is committed to developing cost-effective OEM and high-quality aftermarket products, ensuring our global customers receive a full spectrum of aftermarket services.

We also supply agricultural tractor machinery engines from renowned brands like KUBOTA and Yanmar, catering to a diverse range of machinery needs.

Key Terminology in Engineering Machinery

Hydraulic Pump (液压泵): A mechanical device that converts mechanical power into hydraulic power. It is a vital component in excavators, responsible for generating the high-pressure oil needed to power hydraulic cylinders and motors. For example, a 3P310-82205 hydraulic pump is used in some KUBOTA excavator models. It is typically installed within the hydraulic system near the engine.

Travel Final Motor Drive (行走终传动马达): A hydraulic motor connected to a gearbox that provides the final driving force to the excavator's tracks or wheels, enabling it to move. For instance, a travel final motor drive with part number JCB-20/925550 can be found in certain JCB excavator models. It is located in the undercarriage, directly connected to the tracks or wheels.

Bushing (衬套): A type of plain bearing that is inserted into a housing to provide a running surface for rotary applications; often used to reduce friction and wear between moving parts. The Hitachi BUSHING 4354850 likely serves this purpose in a specific part of the machinery.

Excavator Engine (挖掘机发动机): The power source of the excavator, converting fuel into mechanical energy to drive the hydraulic system and other components. For example, the Yanmar 4TNV98 engine is commonly used in smaller excavator models. It is located in the upper structure of the excavator.

Hydraulic Cylinder (液压缸): A linear actuator that uses hydraulic power to generate a mechanical force in a linear motion. They are used throughout an excavator for various functions like lifting the boom, dipper stick, and bucket. A hydraulic cylinder with part number VOE14527373 is used for the boom in some Volvo excavator models.

Hydraulic Hose (液压软管): A flexible conduit that carries hydraulic fluid under high pressure between different hydraulic components in the excavator. These hoses connect the pump to cylinders, motors, and valves. A hydraulic hose with part number 14675567 is used in certain Bobcat excavator models.

Control Valve (控制阀): Directs the flow of hydraulic fluid to various actuators (cylinders and motors) in the excavator, controlling their movement and operation. A control valve assembly with part number 207-43-41141 is used in some Komatsu excavator models.

Gearbox (齿轮箱): A mechanical component that increases or decreases the torque and speed output from the travel final motor drive to the tracks or wheels of the excavator. It houses various gears to achieve the desired reduction ratio. A gearbox with part number 323-00031 is found in some Kobelco excavator travel motor units.

Idler (引导轮): A wheel in the undercarriage of a tracked excavator that helps to maintain the correct tension of the tracks. It rotates freely and guides the track. An idler with part number 923-00118 is used in some Caterpillar excavator models.

Piston (活塞): A cylindrical component that moves within a cylinder in the hydraulic pump or engine, converting pressure into motion or vice versa. For instance, a piston with part number 129107-22050 is used in Yanmar engines.

General Knowledge about Engineering Machinery

Regular maintenance is crucial for extending the lifespan of excavator parts. This includes checking fluid levels, inspecting for leaks, and ensuring proper lubrication of components like bushings, hydraulic cylinders, and travel motors.

Hydraulic fluid quality significantly impacts the performance of hydraulic pumps and travel final motor drives. Using the correct type and ensuring the fluid is free from contamination is essential for efficient and reliable operation.

Understanding the part numbers of key components like the Hitachi BUSHING 4354850 is vital for accurate and timely replacements. Always refer to the machine's service manual for the correct part numbers.

Engine Failure and Solution in Construction Machinery

Problem: Overheating Engine

One common issue in construction machinery engines is overheating. This can lead to significant damage if not addressed promptly.

Possible Causes:

Low coolant level: The coolant helps dissipate heat from the engine.
Faulty thermostat: A malfunctioning thermostat might not open to allow coolant flow to the radiator.
Blocked radiator: Debris or corrosion can block the radiator, reducing its efficiency in cooling the engine.
Loose or damaged fan belt: The fan belt drives the cooling fan, which helps draw air through the radiator.
Water pump failure: The water pump circulates coolant through the engine and radiator.

Troubleshooting Steps:

Check the coolant level and top up if necessary. Ensure the correct type of coolant is used.
Inspect the thermostat. If suspected to be faulty, it should be replaced.
Examine the radiator for any blockages. Clean the radiator fins with compressed air or water. Internal blockages might require professional servicing or replacement.
Check the tension and condition of the fan belt. Replace if it's loose, cracked, or damaged.
If the above steps don't resolve the issue, the water pump might be failing and needs inspection or replacement by a qualified mechanic.

BUSHING 4354850 - Hitachi

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