Spare part 4637841 HYDRAULIC HOSE (Hitachi)
Hitachi Hydraulic Hose (Part No. 4637841)Product OverviewThe Hitachi Hydraulic Hose, part number 4637841, is an essential component designed for the efficient and reliable operation of hydraulic syste
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Hitachi Hydraulic Hose (Part No. 4637841)Product OverviewThe Hitachi Hydraulic Hose, part number 4637841, is an essential component designed for the efficient and reliable operation of hydraulic syste
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Hitachi Hydraulic Hose (Part No. 4637841)
Product Overview
The Hitachi Hydraulic Hose, part number 4637841, is an essential component designed for the efficient and reliable operation of hydraulic systems in heavy machinery. Engineered to meet Hitachi's stringent quality standards, this hose ensures optimal fluid transfer under high pressure, providing superior performance and durability in demanding work environments.
Key Specifications
Part Number: 4637841
Type: Hydraulic Hose
Material: High-grade synthetic rubber with multiple reinforcement layers (e.g., steel wire braid)
Pressure Rating: Designed for high-pressure hydraulic applications (specific PSI/MPa will vary by exact model, typically in the range of 3000-6000 PSI)
Dimensions: Specific length and diameter (Varies based on application, common sizes include 1/2", 3/4", 1" inner diameter)
Operating Temperature Range: -40°C to +100°C (-40°F to +212°F)
End Fittings: Typically pre-assembled with durable, corrosion-resistant steel fittings, specific to Hitachi equipment
Advantages & Selling Points
Exceptional Durability: Constructed from premium materials to withstand extreme conditions, abrasion, and chemicals.
High Pressure Resistance: Engineered to handle the rigorous demands of high-pressure hydraulic systems, preventing leaks and bursts.
Optimal Flexibility: Designed for easy installation and routing in confined spaces without compromising performance.
Corrosion Resistance: Fittings are treated to resist rust and corrosion, extending the hose's lifespan.
Genuine Hitachi Quality: Guarantees perfect fit, form, and function, ensuring compatibility and peak performance with your Hitachi machinery.
Reduced Downtime: Reliable performance minimizes unexpected failures, leading to less downtime and increased productivity.
Applicable Equipment
This Hitachi Hydraulic Hose (4637841) is primarily designed for use in a wide range of Hitachi construction and mining equipment. This includes, but is not limited to:
Hitachi Excavators: Such as ZX series (e.g., ZX120, ZX200, ZX330, ZX470, ZX870) and EX series.
Hitachi Wheel Loaders: Such as ZW series (e.g., ZW180, ZW220, ZW310).
Hitachi Articulated Dump Trucks: Such as AH series.
Hitachi Dozers: Certain models with hydraulic systems.
Hitachi Mining Equipment: Large hydraulic excavators and dump trucks used in mining operations.
Application Scenarios & Case Studies
The 4637841 Hydraulic Hose plays a critical role in various hydraulic circuits within heavy equipment, including boom, arm, bucket, swing, and travel hydraulic lines. Its robust design ensures reliable performance in diverse and demanding applications:
Construction Sites: Used in excavators for digging foundations, trenching, demolition, and material handling. A high-quality hose prevents hydraulic fluid leaks that can lead to operational inefficiency and environmental hazards.
Case Study: A construction company replaced a failing hydraulic hose on a Hitachi ZX330 excavator with part 4637841. This resolved consistent pressure drops in the boom circuit, allowing for smoother and more powerful lifting operations, reducing project completion time by 5%.
Mining Operations: Essential for the continuous operation of large mining excavators and dump trucks, facilitating the movement of massive amounts of earth and ore. Downtime due to hose failure in mining can be extremely costly.
Case Study: In an open-pit mine, a Hitachi EX870 hydraulic shovel experienced frequent hose failures in its travel motor circuit. Switching to genuine Hitachi 4637841 hoses significantly extended the service interval, leading to a 15% improvement in operational uptime over a six-month period.
Quarrying: Supporting the hydraulic hammers and breakers on excavators used for breaking down rock and aggregate. The hoses must withstand significant vibrations and pressure spikes.
Case Study: A quarry operator noted premature wear on hydraulic hoses on their Hitachi ZW310 wheel loader's steering system. After installing genuine Hitachi 4637841 hoses, they observed enhanced steering responsiveness and a reduction in hydraulic system noise, indicating improved fluid dynamics.
Forestry and Land Clearing: Employed in machines like feller bunchers or processors based on excavator chassis, where hydraulic power is crucial for cutting, delimbing, and processing timber.
Case Study: A forestry company reported issues with their Hitachi excavator's attachment hydraulics, causing slow and inconsistent operation of their feller buncher head. Replacing worn hoses with 4637841 restored full hydraulic power, enabling more efficient tree felling and increased daily output.
Related & Similar Products
While 4637841 is a specific Hitachi Hydraulic Hose, Hitachi offers a comprehensive range of hydraulic hoses and components for various applications. These may differ in length, diameter, pressure rating, and fitting types to suit different parts of the hydraulic system and various machine models.
Different Length/Diameter Hoses:
Examples: Hoses for smaller auxiliary lines, return lines, or different sections of the main hydraulic circuits. Applicable to all Hitachi excavators, wheel loaders, and dump trucks based on specific hydraulic line requirements.
High-Pressure Steel Tubes/Pipes:
Description: For rigid sections of the hydraulic system where flexibility is not required. Often used in conjunction with hoses. Applicable to all Hitachi heavy equipment where static hydraulic lines are needed.
Hydraulic Hose Fittings & Adapters:
Description: Various types of fittings (e.g., JIC, ORFS, Flange) and adapters to connect hoses to components or other lines. Essential for maintenance and custom hydraulic line fabrication across all Hitachi machinery.
Hydraulic Seals & O-Rings:
Description: Critical for preventing leaks at connection points and within hydraulic components. Applicable to all Hitachi hydraulic cylinders, pumps, valves, and motors.
Installation & Maintenance: Common Issues & Solutions
Proper installation and regular maintenance are crucial for maximizing the lifespan and performance of your hydraulic hoses. Here are common issues and their solutions:
Issue 1: Leaks at Fittings
Cause: Overtightening, undertightening, worn O-rings, damaged threads, or incorrect fitting type.
Solution: Ensure proper torque during installation (refer to manufacturer's specifications). Replace worn O-rings or damaged fittings. Use genuine Hitachi fittings for optimal compatibility.
Issue 2: Hose Abrasion/Chafing
Cause: Hoses rubbing against other components, sharp edges, or other hoses due to improper routing or lack of protective sleeves.
Solution: Reroute hoses to avoid contact points. Install protective sleeves, spiral wraps, or clamps to secure hoses and prevent rubbing. Regularly inspect for signs of abrasion.
Issue 3: Hose Burst/Rupture
Cause: Exceeding pressure limits, kinking, extreme temperature fluctuations, material degradation due to age or chemical exposure, or sudden pressure spikes.
Solution: Ensure the replacement hose has the correct pressure rating. Avoid sharp bends during installation. Monitor hydraulic system pressure. Replace hoses as part of preventative maintenance schedule, especially if cracking or swelling is observed.
Issue 4: Contamination in Hydraulic System
Cause: Dirt or debris entering the hose during installation, or degradation of the hose's inner tube releasing particles.
Solution: Always cap off hoses during storage and handling. Clean hose ends thoroughly before connection. Ensure hydraulic fluid is clean and filtered regularly. If the hose's inner tube shows signs of deterioration, replace it immediately.
Issue 5: Kinking or Twisting of Hose
Cause: Improper installation, insufficient hose length, or hose being pulled at an extreme angle.
Solution: Ensure the hose has enough slack to accommodate machine movements. Install hoses without twists. Avoid routing hoses in tight bends that can cause kinking, which restricts fluid flow and degrades the hose quickly.
Regular visual inspections and adherence to Hitachi's maintenance guidelines are key to ensuring the longevity and performance of your hydraulic hoses and overall hydraulic system.
For inquiries or to purchase, please contact our sales team.
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