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The A5002070A77 Hand Pump is an essential manual hydraulic component engineered specifically for BEIBEN trucks, designed to generate hydraulic pressure through human power for emergency, auxiliary, or maintenance applications when the primary hydraulic system is inoperative or requires manual control. This genuine part provides a dependable backup or independent power source for lifting, lowering, or positioning various truck-mounted equipment. As a premier supplier of Beiben truck parts, we offer this high-quality hand pump that meets exact original equipment specifications. The A5002070A77 is constructed with a durable housing, a precision-engineered piston mechanism, and robust seals, ensuring reliable performance and fluid displacement with each pump stroke. Its design focuses on ergonomics and leverage, allowing an operator to generate sufficient pressure for tasks like raising a dump body in an emergency, bleeding hydraulic systems, or operating remote attachments. The reliability of the A5002070A77 directly contributes to vehicle functionality and safety, providing a critical manual override in situations where electrical or engine-driven pumps fail, making it an indispensable tool for fleet maintenance and on-site operations.
Hand Pump
Ручной насос
Bomba Manual
The Hand Pump with OEM number A5002070A77 is a manually operated hydraulic pump designed for BEIBEN trucks, serving as an independent or auxiliary source of hydraulic power. It operates on the principle of a reciprocating piston or plunger, where manual force applied to a lever draws hydraulic fluid from a reservoir and pressurizes it into the connected system. This simple yet robust mechanism is invaluable in scenarios where the main engine-driven hydraulic pump is unavailable due to mechanical failure, electrical issues, or when the vehicle’s engine is turned off. The A5002070A77 is typically connected to the truck’s hydraulic circuit via quick-disconnect couplings or direct ports, allowing it to actuate cylinders for tasks such as emergency dump body lowering, cab tilting for service access, or operating hydraulic tools in remote locations without external power.
For BEIBEN truck operators and service technicians, the A5002070A77 hand pump is a vital piece of equipment for both routine maintenance and unexpected emergencies. It ensures that critical functions can still be performed even when primary systems are down, preventing costly service delays and enhancing operational safety. The pump’s design prioritizes durability and ease of use, with a comfortable handle, clear fluid passages, and a compact form factor for convenient storage on the vehicle. By integrating this genuine manual pump into their toolkit, fleet managers can improve their preparedness for hydraulic system troubleshooting, bleeding, and recovery operations, ultimately contributing to higher vehicle uptime and reduced dependency on external recovery services in the field.
Robust Construction: The A5002070A77 pump housing is made from high-strength aluminum alloy or steel, providing excellent durability and resistance to impact, corrosion, and the harsh environments typical of truck operations.
Efficient Pumping Mechanism: Features a precision-machined piston and cylinder bore with low-friction seals, ensuring smooth operation and efficient fluid displacement with each stroke, minimizing operator effort while generating usable pressure.
Integrated Fluid Reservoir: Often includes a built-in or attached fluid reservoir, simplifying operation by providing a ready supply of clean hydraulic fluid and reducing the need for external containers during use.
Ergonomic Design: Equipped with a comfortable, non-slip handle and an optimized lever arm length to provide mechanical advantage, reducing operator fatigue during extended pumping sessions.
Versatile Port Connections: Comes with standard hydraulic thread ports (e.g., BSPP, NPT) and may include quick-release couplers for easy and secure connection to the truck’s hydraulic system or auxiliary tools.
The benefits of choosing the genuine A5002070A77 hand pump are significant for operational resilience and cost-efficiency. Its primary advantage is providing a reliable, non-electric method to generate hydraulic power, which is crucial during roadside breakdowns, in workshops without power, or in remote job sites. This capability can prevent expensive service calls and tow bills by enabling drivers or mechanics to perform basic hydraulic functions independently. Furthermore, the pump serves as an excellent tool for bleeding air from hydraulic systems after repairs, ensuring optimal performance of cylinders and valves. For fleet managers, equipping each truck with an A5002070A77 is a proactive measure that enhances vehicle self-sufficiency, reduces downtime, and supports a comprehensive preventive maintenance program. The durable construction also means a long service life with minimal maintenance, offering a high return on investment.
The table below details the core technical parameters for the A5002070A77 Hand Pump. These specifications are vital for understanding its performance capabilities and ensuring correct integration with BEIBEN truck hydraulic systems.
| Parameter | Value / Description | Details |
|---|---|---|
| OEM Number | A5002070A77 | Original Equipment Manufacturer Code |
| Product Name | Hand Pump (Manual Hydraulic Pump) | Manually operated hydraulic pressure source |
| Brand | BEIBEN | Manufacturer brand |
| Pump Type | Single or Double Acting Piston Pump | Mechanism for generating pressure |
| Maximum Output Pressure | Up to 700 Bar (approx. 10,000 PSI) | Peak pressure capability |
| Fluid Displacement per Stroke | Model-Specific (e.g., 10-50 cm³) | Volume of fluid moved per pump cycle |
| Reservoir Capacity | Integrated (e.g., 0.5-2 Liters) | Onboard hydraulic fluid storage |
| Port Size & Thread | Standard (e.g., M14x1.5, 3/8″ NPT) | Connection interface for hoses |
| Operating Fluid | Standard Hydraulic Oil (e.g., ISO VG 46) | Recommended fluid type |
| Compatibility | BEIBEN Truck Hydraulic Systems | Designed for specific models and circuits |
These specifications define the operational envelope of the A5002070A77 component. The maximum output pressure indicates the force it can generate, which must match or exceed the requirements of the hydraulic actuators it is intended to operate. The displacement per stroke affects how quickly a cylinder extends; a larger displacement moves fluid faster but requires more effort per stroke. The reservoir capacity determines how much work can be done before refilling. The port threading must match the existing hose or adapter on the truck. When selecting a manual pump, matching these exact OEM specifications as provided by the A5002070A77 is essential for ensuring effective performance, safety, and compatibility with BEIBEN’s hydraulic fluids and components. Always verify this number against the vehicle’s service manual.
The A5002070A77 Hand Pump is designed for integration into the hydraulic systems of BEIBEN trucks, primarily serving as an emergency or auxiliary power source. Its most critical application is to lower a raised dump body or tipper in the event of a failure in the main hydraulic pump, power take-off (PTO), or control valve. This prevents the truck from being stranded with a loaded body in the upright position. Additionally, the pump is used for maintenance tasks such as bleeding air from hydraulic lines after component replacement, slowly positioning equipment for precise assembly or repair, and operating hydraulic tools like jacks or spreaders independently of the truck’s engine.
System integration is straightforward but requires attention to detail. The A5002070A77 is typically connected to the truck’s existing hydraulic circuit via a dedicated test port or by temporarily disconnecting a line from the main system and connecting the pump in series. Some BEIBEN trucks may have a pre-installed coupling point for this purpose. It is crucial to ensure the pump is used with the correct hydraulic fluid type and that all connections are clean and tight to prevent leaks and contamination. The pump’s independent operation means it does not rely on the vehicle’s electrical system or engine, making it a truly redundant backup. Understanding the specific connection points and procedures for your BEIBEN model is essential for effective use of the A5002070A77.
Suction Stroke: When the pump handle of the A5002070A77 is pulled up, the internal piston retracts, creating a vacuum in the pumping chamber. This draws hydraulic fluid from the integrated reservoir into the chamber through an inlet check valve.
Pressure Stroke: Pushing the handle down forces the piston into the chamber, compressing the fluid. The inlet check valve closes, and the pressurized fluid is forced open an outlet check valve, entering the connected hydraulic hose and system.
Reciprocating Action: Repeated pumping cycles of the A5002070A77 continue to displace fluid into the system, gradually increasing pressure. This pressure is transmitted to hydraulic cylinders, causing them to extend or retract depending on the circuit configuration.
Pressure Relief: Most manual pumps like the A5002070A77 include an integrated pressure relief valve or recommend connecting to a system with one. This prevents over-pressurization and potential damage if the handle is pumped against a fully extended cylinder or a blocked port.
Understanding this principle is key to efficient operation. The force required on the handle is directly related to the system pressure being generated. For high-pressure tasks, more effort per stroke is needed. The mechanical advantage of the lever arm is designed to make this manageable. If the pump becomes difficult to operate or fails to move fluid, it may indicate a blocked inlet filter, low fluid level, air in the pump, or a malfunctioning check valve. The simple, robust design of the A5002070A77 makes it reliable, but proper priming and use with clean fluid are essential for smooth performance. It is a purely mechanical device, making it immune to electrical faults.
Installing and preparing the A5002070A77 Hand Pump for use is a straightforward process. First, ensure the pump is clean and filled with the correct type of clean hydraulic fluid as specified for the BEIBEN truck. To prime the pump, it is often necessary to operate the handle several times with the outlet port open and the inlet submerged in fluid to expel air from the internal chambers. Once a steady stream of fluid is observed from the outlet, the pump is primed. Connect the pump’s outlet port to the desired point on the truck’s hydraulic system using the appropriate hoses and adapters. Ensure all connections are secure to withstand the high pressures generated.
When connecting to lower a dump body, locate the hydraulic line or test port on the cylinder or control valve that will allow fluid to flow into the cylinder’s retract side. Always follow the BEIBEN vehicle’s manual for the correct connection procedure to avoid accidental movement or system damage. Operate the pump handle with smooth, full strokes. Be patient, as moving a large cylinder requires many pump cycles. After completing the task, disconnect the pump, cap the ports to prevent contamination, and store the A5002070A77 in a clean, dry place. Properly maintaining the pump after each use will ensure it is ready for the next emergency or maintenance job.
Regular maintenance of the A5002070A77 Hand Pump is minimal but crucial for reliability. After each use, wipe the pump clean and inspect for external damage or fluid leaks, especially around the piston shaft seal and port connections. Periodically check the fluid level in the reservoir and top up with clean, recommended hydraulic oil. It is good practice to change the fluid annually or if it becomes contaminated. Inspect the handle pivot points for wear and lubricate them if necessary. Store the pump in its designated storage location on the truck, protected from extreme temperatures and physical impacts.
Common signs of a failing or underperforming A5002070A77 pump include: difficulty in operating the handle (may indicate internal contamination or seized piston), failure to draw fluid or build pressure (suggesting faulty check valves or air ingress), and visible fluid leaks from the body or shaft seal. If the pump fails to prime, check for clogged inlet filters or air leaks in the suction path. Most issues can be resolved by disassembling, cleaning, and replacing worn seals using a genuine repair kit. However, if the pump body is cracked or heavily corroded, replacement with a new A5002070A77 unit is recommended. Having a fully functional manual pump is a safety requirement, so proactive inspection is key.
Choosing a genuine BEIBEN hand pump like the A5002070A77 is a decision that prioritizes safety, compatibility, and assured performance. OE manual tools are engineered to match the pressure ratings, fluid types, and connection standards of the specific truck model. The materials and seals in the A5002070A77 are selected for compatibility with BEIBEN’s hydraulic fluids and for durability under repeated use. This ensures that when an emergency arises, the tool will function as intended without causing damage to the more expensive primary hydraulic system components.
Using non-genuine or generic hand pumps introduces risks. They may not generate sufficient pressure to actuate the truck’s large cylinders, may have incompatible seals that degrade quickly, or may have port threads that do not match, leading to leaks and potential fluid loss under high pressure. In a critical situation, such a failure could leave the vehicle in an unsafe state. The genuine A5002070A77 provides reliability that drivers and mechanics can trust. It is part of BEIBEN’s comprehensive support for vehicle safety and maintainability, and its use helps preserve the integrity of the overall hydraulic system during manual operations.
When the A5002070A77 hand pump does not perform as expected, a systematic troubleshooting approach is best. If the pump handle moves too easily and does not build pressure, first ensure it is properly primed and that the reservoir has adequate fluid. Check that the outlet hose is connected to a system that can accept pressure (e.g., not an open-ended hose). If pressure still isn’t building, the internal check valves may be stuck open due to contamination or wear; disassembly and cleaning may be required.
If the handle is extremely hard to push, the connected system may be at its pressure limit (cylinder fully extended), a relief valve may be faulty, or there could be a blockage downstream. Never force the handle excessively. If fluid is leaking from the piston shaft, the shaft seal likely needs replacement. Always use clean fluid and a clean work environment when servicing the A5002070A77. For complex hydraulic system issues, consulting the BEIBEN service manual or a qualified technician is advised, as improper use of the manual pump could potentially cause harm if the hydraulic system is not properly understood.
The A5002070A77 Hand Pump occupies a respected position within BEIBEN’s range of maintenance and emergency equipment. Its value lies in its simplicity, reliability, and the peace of mind it offers to operators. In the market for truck tools and accessories, genuine OEM pumps are distinguished by their guaranteed fit and function, backed by the manufacturer’s quality assurance processes. Fleet managers who invest in genuine parts like the A5002070A77 demonstrate a commitment to proper vehicle care and operator safety.
Quality assurance for the A5002070A77 involves testing of materials for strength and corrosion resistance, precision machining of internal components, assembly verification, and performance testing under pressure. Each pump is validated to deliver its rated output and withstand the mechanical stresses of operation. This rigorous control ensures that the tool will perform reliably, potentially for the lifetime of the truck, making it a one-time investment for sustained operational readiness. This level of quality is a hallmark of BEIBEN’s dedication to producing fully supported commercial vehicles.
The A5002070A77 Hand Pump is a vital, manually-operated hydraulic component for BEIBEN trucks, providing a reliable source of hydraulic power independent of the vehicle’s main systems. Its robust construction, efficient pumping action, and genuine OE compatibility make it an essential tool for emergency situations, routine maintenance, and system servicing. Choosing the genuine A5002070A77 part guarantees the performance, durability, and safety required for heavy-duty commercial applications.
Adherence to proper connection procedures, regular inspection, and basic maintenance will ensure the A5002070A77 is always ready for use. By equipping their vehicles with this genuine BEIBEN tool, truck owners and fleet managers invest in operational resilience, enhanced safety, and reduced dependency on external assistance. In the demanding world of commercial transportation, having the right tool for the job—especially for critical functions like hydraulic system management—is not just convenient, it’s a smart business practice. Always verify OEM numbers and source components from authorized suppliers to maintain the highest standards for your equipment.
© 2023 Truck Parts Guide. This content is for informational purposes. Always consult the official BEIBEN service manual and qualified professionals for maintenance, repair, and safety-critical hydraulic procedures.
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