How to Install a Hydraulic Pump on an Excavator | Kyotechs
How to Install a Hydraulic Pump on an Excavator: A Detailed Guide
Installing a hydraulic pump on an excavator is a precise task that requires careful planning, the right tools, and technical knowledge. At Kyotechs, established in 2009, we provide a comprehensive range of excavator parts and solutions, ensuring that your machinery runs efficiently with minimal downtime. In this blog post, we’ll guide you through the step-by-step process of installing a hydraulic pump on an excavator, ensuring a successful and smooth operation.
Introduction
Whether you are using a Hitachi, Sany, Kawasaki, Volvo, Hyundai, Doosan, Komatsu, Caterpillar, Case, or Kobelco excavator, Kyotechs is your go-to partner for all your hydraulic needs. Our extensive inventory of excavator parts, including engine assemblies, hydraulic pumps, and control valve assemblies, positions us as a leader in the industry. Ensuring that your hydraulic pump is installed correctly can maximize your machine’s efficiency and longevity. Let’s delve into the step-by-step process of installing a hydraulic pump on an excavator.
Step 1: Gather Necessary Tools and Parts
Before starting the installation, ensure you have all the necessary tools and parts. You will need:
- Correct hydraulic pump model (ensure compatibility with your excavator)
- Wrenches and socket set
- Screwdrivers
- Torque wrench
- Clean cloths
- Safety gear (gloves and goggles)
Kyotechs offers a one-stop hydraulic repair solution to make sure you have all necessary components handy.
Step 2: Prepare the Excavator
1. Ensure Safety: Switch off the engine and disconnect the battery to avoid any unintended movements.
2. Position the Excavator: Park it on a stable, flat surface to prevent any accidents during the installation process.
3. Drain Hydraulic Fluid: Locate the hydraulic reservoir and carefully drain the old hydraulic fluid. Using a clean reservoir or container, store the fluid for proper disposal.
Step 3: Remove the Old Hydraulic Pump
1. Access the Hydraulic Pump: Carefully remove the panels or covers that provide access to the hydraulic pump. For specific instructions, refer to your excavator’s manual.
2. Disconnect Lines and Bolts: Use appropriate wrenches to disconnect hydraulic lines and remove any bolts securing the pump. Take care to collect any oil that may spill out during this process.
3. Remove the Pump: Gently lift out the old pump, ensuring not to damage any surrounding components.
Step 4: Install the New Hydraulic Pump
1. Position New Pump: Align the new hydraulic pump in its designated spot within the excavator.
2. Secure the Pump: Insert and tighten the bolts using a torque wrench to the manufacturer’s specifications. This prevents loosening due to vibration.
3. Reconnect Hydraulic Lines: Carefully reattach all hydraulic lines and ensure they are securely tightened to prevent leaks.
Step 5: Refill Hydraulic System and Final Checks
1. Refill Hydraulic Fluid: Using new, clean hydraulic fluid, refill the reservoir to the required level. Always use manufacturer-recommended fluid to maintain optimal performance.
2. Reconnect the Battery: Reconnect the battery once you are confident that all connections are secure and leak-free.
3. Test the System: Turn on the engine and operate the hydraulic system to ensure everything works seamlessly. Check for any unusual noises or leaks.
Conclusion
Installing a hydraulic pump on an excavator requires meticulous attention to detail and the right equipment. By following this guide, you can ensure a hassle-free installation process. At Kyotechs, our commitment to quality and precision in providing excavator parts and solutions supports your operational needs, ensuring peak performance.
FAQ
Q1: How often should the hydraulic pump on an excavator be replaced?
There isn’t a set time frame as it largely depends on the usage and condition of the machine. Regular maintenance checks can help determine when a replacement is necessary.
Q2: What are the signs of a failing hydraulic pump?
Reduced performance, unusual noises, increased operating temperature, and leaks are common signs of a failing hydraulic pump.
Q3: Can I install a hydraulic pump myself, or should I hire a professional?
While it’s possible to install a hydraulic pump yourself, it requires technical knowledge. If you’re unsure, hiring a professional ensures the job is done correctly.
For more information on our excavator parts and services, visit Kyotechs and explore our expertly crafted solutions that cater to all your machinery needs.
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FAQS
What is the function of the hydraulic pump pressure relief valve?
The pressure relief valve protects the hydraulic system from damage caused by excessive pressure by releasing excess hydraulic oil when the pressure exceeds the set value.
How to address overheating due to high ambient temperature?
Possible inadequate cooling or high oil viscosity.
Solution: Improve ventilation, use correct viscosity oil.
What is the maintenance frequency of the hydraulic pump?
The maintenance frequency of the hydraulic pump is usually performed every 1000 to 2000 hours of operation or once a year according to the manufacturer's recommendations.
Digging powerlessness is one of the typical faults of excavators
Digging powerlessness can be divided into two situations: one is digging powerlessness, the engine does not hold back, and the load feels very light; the second is digging powerlessness, when the boom or dipper stick is extended to the bottom, the engine is seriously held back or even stalled.
①, digging powerlessness but the engine does not hold back. The magnitude of the digging force is determined by the output pressure of the main pump, and whether the engine holds back depends on the relationship between the oil pump absorption torque and the engine output torque. The engine does not hold back, indicating that the oil pump absorption torque is small and the engine load is light. If the working speed of the excavator is not obviously abnormal, the maximum output pressure of the main pump, that is, the system overflow pressure, should be checked in particular. If the overflow pressure measurement value is lower than the specified value, it indicates that the overload overflow valve setting value of the hydraulic circuit of the mechanism is incorrect, resulting in premature overflow of the mechanism and powerlessness. The machine can be adjusted by turning the adjustment screw.
②, digging powerlessness, engine holding back. The engine holding back indicates that the absorption torque of the oil pump is greater than the engine output torque, causing the engine to overload. This fault should first check whether the engine speed sensing system is normal, and the inspection method is similar to the engine inspection method described above. After the above detailed inspection and troubleshooting, the engine speed sensing system will resume normal function, the engine stalling phenomenon will disappear, and the digging force will return to normal.
How to check the hydraulic oil level?
Park the excavator on a flat ground, turn off the engine and wait for a while, then check the hydraulic oil level through the oil level gauge of the hydraulic oil tank.
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