New Hitachi John Deere 0770403 Valve
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New Hitachi John Deere 0770403 Valve - Your Reliable Excavator Part
Introducing the brand new Hitachi John Deere 0770403 Valve, a crucial component for your heavy machinery. This high-quality valve is designed for optimal performance and durability in demanding environments. Ensure the smooth operation of your Hitachi or John Deere equipment with this genuine part.
As a key component, this valve plays a vital role in the hydraulic system of your excavator. Investing in this new Hitachi John Deere 0770403 Valve will contribute to the efficiency and longevity of your machinery.
Product Details
- Product Name: New Hitachi John Deere 0770403 Valve
- Brand: Hitachi, John Deere
- Part Number: 0770403
- Type: Valve
- Application: Excavator Parts
Keywords Integration
This page focuses on the New Hitachi John Deere 0770403 Valve, a vital excavator part. If you are looking for reliable Hitachi parts or John Deere parts, you've come to the right place. This specific valve with part number 0770403 is essential for maintaining the performance of your heavy machinery.
At SWAFLY MACHINERY CO., LIMITED, we specialize in providing high-quality excavator parts and mining equipment parts. Established in 2009, we have over 15 years of experience in supplying a comprehensive range of machinery components, including machinery engines, hydraulic pumps, and travel final motor drives. We also offer agricultural tractor machinery engines from renowned brands like KUBOTA and Yanmar.
Engineering Machinery Hydraulic Pumps and Travel Final Motor Drives Glossary
Here are some common terms related to hydraulic pumps and travel final motor drives in engineering machinery:
Hydraulic Pump (液压泵)
Definition: A mechanical device that converts mechanical power into hydraulic energy (typically in the form of flow and pressure). (将机械能转换为液压能（通常以流量和压力形式）的机械装置。)
Installation Location: Usually mounted on the engine or gearbox of the excavator. (通常安装在挖掘机的发动机或变速箱上。)
Example: Kawasaki K3V112 Hydraulic Pump
Part Number: 49197-0052 (Note: This is an example part number and may vary depending on the specific model.)
Main Hydraulic Pump (主液压泵)
Definition: The primary hydraulic pump in an excavator that supplies oil to various hydraulic actuators. (挖掘机中为各种液压执行器供油的主要液压泵。)
Installation Location: Typically located near the engine and driven by the engine's power. (通常位于发动机附近，由发动机动力驱动。)
Example: Hitachi HPV116 Main Pump
Part Number: 9192463 (Note: This is an example part number and may vary depending on the specific model.)
Pilot Pump (先导泵)
Definition: A small hydraulic pump that provides the pilot pressure for controlling the main hydraulic valves. (一种小型液压泵，为控制主液压阀提供先导压力。)
Installation Location: Often mounted on or integrated with the main hydraulic pump. (通常安装在主液压泵上或与其集成在一起。)
Example: Rexroth A10VO Pilot Pump
Part Number: R902103421 (Note: This is an example part number and may vary depending on the specific model.)
Travel Final Drive (行走减速器总成)
Definition: The assembly that transmits power from the travel motor to the track or wheels, allowing the machine to move. (将动力从行走马达传递到履带或车轮，使机器能够移动的组件。)
Installation Location: Located within the undercarriage, directly connected to the tracks or wheels. (位于底盘内，直接连接到履带或车轮。)
Example: Eaton Travel Final Drive
Part Number: 74718-70000 (Note: This is an example part number and may vary depending on the specific model.)
Travel Motor (行走马达)
Definition: A hydraulic motor that provides the rotational power to drive the travel final drive. (一种液压马达，提供旋转动力来驱动行走减速器。)
Installation Location: Mounted on the travel final drive unit. (安装在行走减速器总成上。)
Example: Nachi Travel Motor
Part Number: 9033278 (Note: This is an example part number and may vary depending on the specific model.)
Gear Pump (齿轮泵)
Definition: A type of positive displacement hydraulic pump that uses the meshing of gears to pump fluid. (一种容积式液压泵，利用齿轮的啮合来泵送流体。)
Installation Location: Can be used in various locations depending on the application, often as a pilot pump or for auxiliary functions. (可根据应用安装在不同位置，通常用作先导泵或用于辅助功能。)
Example: Parker Gear Pump
Part Number: PGP511A2000AS1D2ND3B (Note: This is an example part number and may vary depending on the specific model.)
Axial Piston Pump (轴向柱塞泵)
Definition: A type of positive displacement hydraulic pump that uses pistons moving in a direction parallel to the axis of rotation. (一种容积式液压泵，使用沿旋转轴线方向平行的活塞运动。)
Installation Location: Typically used as the main hydraulic pump in excavators. (通常用作挖掘机的主液压泵。)
Example: Bosch Rexroth A4VG Axial Piston Pump
Part Number: R910990345 (Note: This is an example part number and may vary depending on the specific model.)
Radial Piston Pump (径向柱塞泵)
Definition: A type of positive displacement hydraulic pump that uses pistons moving in a radial direction relative to the axis of rotation. (一种容积式液压泵，使用相对于旋转轴线沿径向运动的活塞。)
Installation Location: Often used in high-pressure applications. (常用于高压应用。)
Example: Hagglunds Radial Piston Pump
Part Number: 8010-3140-000 (Note: This is an example part number and may vary depending on the specific model.)
Swing Motor (回转马达)
Definition: A hydraulic motor that provides the rotational power for the excavator's upper structure to swing. (一种液压马达，为挖掘机上部结构的旋转提供动力。)
Installation Location: Mounted on the upper structure of the excavator, connected to the swing gearbox. (安装在挖掘机的上部结构上，连接到回转齿轮箱。)
Example: Kayaba Swing Motor
Part Number: MSG-27P-18E-2 (Note: This is an example part number and may vary depending on the specific model.)
Control Valve (控制阀)
Definition: A valve that directs the flow of hydraulic fluid to different actuators, controlling the movement of the machine. (一种将液压流体导向不同执行器，从而控制机器运动的阀。)
Installation Location: Typically located centrally in the hydraulic system, easily accessible for maintenance. (通常位于液压系统的中心位置，便于维护。)
Example: Sauer Danfoss Control Valve
Part Number: PVG 100 (Note: This is a series example, specific part numbers vary.)
Common Questions about Engineering Machinery Parts
What are the common causes of hydraulic pump failure in excavators?
Common causes include contamination of hydraulic fluid, overheating, cavitation due to low fluid levels or restrictions, and wear and tear over time.
How often should I replace the hydraulic filters in my mining equipment?
The replacement frequency depends on the operating conditions and the manufacturer's recommendations. Generally, it's advisable to replace them every 500 to 1000 hours of operation or as indicated by oil analysis.
What are the signs of a failing travel final drive in an excavator?
Signs can include slow or weak movement on one side, unusual noises coming from the undercarriage, hydraulic leaks around the final drive, and overheating of the unit.
Our Business at SWAFLY MACHINERY CO., LIMITED
SWAFLY MACHINERY CO., LIMITED specializes in providing a wide range of high-quality excavator parts and mining equipment parts in China. Founded in 2009, we leverage over 15 years of experience to supply quality-trusted machinery engines, hydraulic pumps, and travel final motor drives. We also offer agricultural tractor machinery engines from leading brands like KUBOTA and Yanmar.
We utilize our resources and expertise, incorporating technology and experience from top engine manufacturers. Our services include maintenance workshops, mechanical dismantling, engine and hydraulic system assembly maintenance and regeneration. We also engage in complete machine and parts renewal. Our commitment is to timely develop cost-effective OEM or high-quality aftermarket products and provide comprehensive aftermarket services to our global customers.
Common Engine Fault and Solution: Overheating
Fault: Engine Overheating
Description: Engine overheating is a serious issue that can lead to significant damage if not addressed promptly. It occurs when the engine generates more heat than its cooling system can dissipate.
Symptoms: Temperature gauge reading in the red zone, steam coming from under the hood, coolant leaks, a sweet smell (antifreeze) coming from the engine bay, and potentially engine knocking or loss of power.
Possible Causes:
- Low coolant level: Insufficient coolant to absorb and dissipate heat.
- Leaking coolant system: Hoses, radiator, water pump, or head gasket leaks can cause coolant loss.
- Faulty thermostat: A stuck thermostat can prevent coolant from circulating properly.
- Clogged radiator: Debris or corrosion can block airflow or coolant flow through the radiator.
- Water pump failure: The water pump may not be circulating coolant effectively.
- Loose or broken fan belt: The fan belt drives the cooling fan and water pump.
- Head gasket failure: Can cause coolant to leak into the cylinders or oil.
Troubleshooting and Solutions:
- Safely stop the vehicle: If the engine is overheating, pull over to a safe location and turn off the engine immediately to prevent further damage.
- Allow the engine to cool down: Do not attempt to open the radiator cap while the engine is hot, as this can cause severe burns. Wait for at least 30 minutes for the engine to cool down.
- Check coolant level: Once the engine is cool, carefully check the coolant level in the radiator and the overflow tank. If it's low, add the recommended type of coolant.
- Inspect for leaks: Look for any visible leaks around the radiator, hoses, water pump, and engine block. Address any leaks by tightening connections or replacing damaged parts.
- Check the thermostat: A faulty thermostat can be diagnosed by a mechanic. Replacement may be necessary.
- Inspect the radiator: Check for any obstructions blocking the radiator fins. Clean any debris with compressed air or a soft brush.
- Check the water pump: Listen for any unusual noises coming from the water pump area. A failing water pump may need replacement.
- Inspect the fan belt: Ensure the fan belt is in good condition and properly tensioned. Replace it if it's loose, cracked, or broken.
- Check engine oil: Examine the engine oil for a milky or foamy appearance, which could indicate a head gasket leak.
- Seek professional help: If you cannot identify the cause of the overheating or if the problem persists, consult a qualified mechanic for diagnosis and repair.
Ignoring engine overheating can lead to severe engine damage, including warped cylinder heads, cracked engine blocks, and piston damage. Prompt attention to this issue is crucial for the longevity of your machinery.
Mobile/WeChat/WhatsApp: +86 13570162348
Email: sales05@swaflyexcavator.cn
Email: sales05@swaflyexcavator.cn
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