SWITCHPRES. 4377537 - Hitachi_Diesel Engine_Products

Genuine Hitachi SWITCH;PRES. 4377537

Introducing the high-quality Hitachi SWITCH;PRES. 4377537, a reliable pressure switch designed specifically for Hitachi excavators. This essential component plays a crucial role in monitoring and regulating pressure within the hydraulic system, ensuring optimal performance and preventing potential damage. Trust in genuine Hitachi parts for durability and seamless integration with your machinery.

At SWAFLY MACHINERY CO., LIMITED, we understand the importance of dependable parts for your heavy equipment. That's why we offer a wide range of quality-trusted components, including this Hitachi pressure switch, to keep your operations running smoothly.

SWAFLY MACHINERY CO., LIMITED - Your Trusted Partner for Excavator and Mining Equipment Parts

SWAFLY MACHINERY CO., LIMITED specializes in excavator parts and mining equipment parts in China. Founded in 2009, we can supply a quality-trusted full range of machinery engines, hydraulic pumps, and travel final motor drives based on more than 15 years of endeavor and experience. We also provide agricultural tractor machinery engines with KUBOTA and Yanmar brands.

Our company takes advantage of resources, absorbs the technology and experience of leading engine manufacturers, establishes maintenance workshops, develops mechanical dismantling, engine, and hydraulic system assembly maintenance and regeneration platforms, and carries out a complete machine and parts renewal business. We timely develop cost-effective OEM or high-quality aftermarket products, providing a full range of aftermarket services for global customers.

Glossary of Hydraulic Pumps and Travel Final Motor Drives

Hydraulic Pump (液压泵 - Yèyā bèng) - The heart of the hydraulic system, converting mechanical energy into hydraulic energy, supplying pressurized fluid to operate various actuators. Installed in the engine compartment, driven by the engine. Example: Kawasaki K3V63 hydraulic pump with part number K3V63BDT-9C20.

Travel Motor (行走马达 - Xíngzǒu mǎdá) - A hydraulic motor that provides rotational power to the final drive, enabling the excavator to move. Located in the undercarriage, connected to the gearbox and tracks/wheels. Example: Nachi PCL-8B-40 travel motor with part number PCL-8B-40-1-1250.

Gear Pump (齿轮泵 - Chǐlún bèng) - A type of hydraulic pump that uses the meshing of gears to pump fluid. Often used for lower pressure applications in auxiliary systems. Example: Parker PGP511A0200BS1HA gear pump.

Piston Pump (柱塞泵 - Zhùsāi bèng) - A type of hydraulic pump that uses reciprocating pistons to create high-pressure fluid flow. Commonly used as the main hydraulic pump in excavators. Example: Rexroth A10VSO28DRS/31R-PSA12N00 axial piston pump.

Final Drive (行走减速器 - Xíngzǒu jiǎnsù qì) - A gearbox connected to the travel motor that reduces the motor's speed and increases torque to drive the tracks or wheels. Attached directly to the travel motor in the undercarriage. Example: Kayaba MAG-18VP-230 travel reduction gearbox.

Control Valve (控制阀 - Kòngzhì fá) - Directs the flow of hydraulic fluid to different actuators (cylinders, motors) to control their movement. Usually centrally located in the hydraulic system. Example: Bosch Rexroth M4-15 control valve.

Hydraulic Cylinder (液压缸 - Yèyā gāng) - A linear actuator that converts hydraulic power into linear motion. Used for boom, arm, and bucket movements. Example: Hyva 01307590 hydraulic cylinder.

Hydraulic Hose (液压软管 - Yèyā ruǎnguǎn) - Flexible conduits that carry hydraulic fluid between different components. Connects the pump to valves and actuators. Example: Gates MXT-Xtreme hydraulic hose.

Slew Motor (回转马达 - Huízhuǎn mǎdá) - A hydraulic motor that provides rotational power to the excavator's upper structure, allowing it to swing. Located on the upper structure, driving the slew ring. Example: Eaton Char-Lynn 104-1007-006 slew motor.

Pressure Relief Valve (溢流阀 - Yìliú fá) - A valve that limits the maximum pressure in the hydraulic system to prevent overloads. Installed at various points in the hydraulic circuit. Example: Yuken BRG-06-H pressure relief valve.

Quick Maintenance Tips for Your Machinery

Ensure regular checks of hydraulic fluid levels to maintain optimal system performance and prevent pump cavitation.

Inspect hydraulic hoses and fittings frequently for any signs of leaks or damage, replacing worn components promptly.

Follow the manufacturer's recommended service intervals for replacing hydraulic filters to keep the system clean and prevent premature wear on components like hydraulic pumps and travel motors.

Engine Troubleshooting: Engine Fails to Start

Problem: Excavator engine cranks but fails to start.

Possible Cause: One common reason for this issue is a problem with the fuel supply. This could be due to air in the fuel lines, a clogged fuel filter, or a faulty fuel pump.

Solution:

Check the fuel level: Ensure there is sufficient fuel in the tank.
Bleed the fuel system: If there's air in the lines, follow the excavator's manual to bleed the fuel system.
Inspect the fuel filter: Check the fuel filter for clogs. If it's dirty, replace it with a new one. A common fuel filter part number for some Hitachi models is 4716077.
Listen for the fuel pump: When the ignition is turned on, you should be able to hear the electric fuel pump operating (if your model has one). If you don't hear it, the pump might be faulty and need replacement.
If the issue persists: There might be a problem with the fuel injectors or other engine components. Consult a qualified mechanic for further diagnosis.

SWAFLY MACHINERY CO., LIMITED is dedicated to providing high-quality excavator parts, mining equipment parts, machinery engines, hydraulic pumps, and travel final motor drives to customers worldwide. With our extensive experience and commitment to excellence, we strive to be your reliable source for all your heavy equipment component needs.

Visit our website for more information: www.hitachi-isuzuparts.com

Mobile/WeChat/WhatsApp: +86 13570162348

Email: sales05@swaflyexcavator.cn

SWITCH;PRES. 4377537 - Hitachi

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