Washing Out Hydraulic Pump Area on a New Holland L220

[MikePhua]

The New Holland L220 is a compact skid steer loader known for its robust performance and versatile application in a variety of industries such as construction, landscaping, and agriculture. One of the critical systems on any skid steer is the hydraulic system, which powers a wide range of essential functions, including lifting, tilting, and driving. However, just like any other hydraulic system, it requires regular maintenance and attention to ensure it operates smoothly and efficiently.
One common issue that operators may encounter is the contamination of the hydraulic system, especially around the hydraulic pump area. This problem can arise due to various reasons, such as dirt accumulation, hydraulic fluid leaks, or improper sealing. In this article, we’ll explore the importance of cleaning the hydraulic pump area, the potential risks of not addressing this issue, and how to effectively wash out the hydraulic pump area on the New Holland L220 skid steer.
Understanding the Hydraulic System on the New Holland L220
Before delving into the maintenance process, it’s important to understand how the hydraulic system works on the New Holland L220. The hydraulic system on this model is a closed-loop system that uses hydraulic fluid to transfer power to various components of the machine. The system includes the hydraulic pump, motor, valves, hoses, and cylinders that work in sync to perform different tasks.
The hydraulic pump is at the heart of the system, responsible for circulating hydraulic fluid under pressure to different parts of the machine. If the hydraulic pump area becomes contaminated with dirt or other debris, it can result in poor performance, overheating, and even total system failure if not addressed promptly.
Common Causes of Contamination Around the Hydraulic Pump Area
Several factors can contribute to contamination in and around the hydraulic pump area:

1. Dirt and Debris: The most common cause of contamination in the hydraulic system is dirt and debris entering the pump area. This can happen when the pump housing is exposed to external elements or when the seals are damaged. Any foreign particles can get into the system, clogging filters, hoses, and valves.
   
2. Hydraulic Fluid Leaks: Leaks from hydraulic lines or seals can lead to the accumulation of hydraulic fluid in unwanted areas, such as the pump housing. Over time, these leaks can cause contamination and affect the system’s ability to maintain proper pressure and flow.
   
3. Improper Sealing: If the seals around the hydraulic pump or pump housing are worn or improperly installed, fluid and debris can seep into the area. This can lead to contamination, which may affect the performance of the pump and other components.
   
4. Maintenance Neglect: Failing to clean the hydraulic system regularly or replace worn-out components can result in the build-up of contaminants, leading to inefficient pump operation and potential damage.
   

Why It’s Important to Clean the Hydraulic Pump Area
The hydraulic pump is essential for proper functioning, and contamination around the pump area can significantly affect the performance and longevity of the equipment. The following are some of the potential issues caused by not cleaning the hydraulic pump area regularly:

1. Decreased Performance: Contamination in the hydraulic system can cause the pump to work harder than necessary, which can lead to decreased lifting capacity, slower response times, and overall poor machine performance.
   
2. Overheating: Contaminants in the pump area can block proper fluid circulation, leading to overheating. Overheating can cause permanent damage to the pump, seals, and other hydraulic components, which are costly to repair or replace.
   
3. Increased Wear and Tear: Dirt and debris can cause excessive wear on the hydraulic components, such as the pump and motor, leading to premature failure and the need for expensive repairs.
   
4. System Failures: In extreme cases, hydraulic contamination can lead to complete system failure, causing costly downtime for the machine. This can be particularly detrimental to operations that rely heavily on the skid steer for continuous work.
   

Steps for Washing Out the Hydraulic Pump Area on the New Holland L220
Cleaning the hydraulic pump area is a straightforward but essential maintenance task that should be performed regularly to ensure the longevity and efficiency of the hydraulic system. Here are the steps to properly wash out the hydraulic pump area on the New Holland L220:

1. Prepare the Equipment: Before starting any maintenance work, ensure that the machine is parked on level ground and that the engine is turned off. Always wear appropriate personal protective equipment (PPE), including gloves and safety glasses, to protect yourself from hydraulic fluid and debris.
   
2. Release Hydraulic Pressure: Before working on the hydraulic system, it’s essential to release any built-up pressure. This can be done by moving the joystick or hydraulic levers in all directions to relieve the pressure in the system. This step prevents any fluid from spraying out during the cleaning process.
   
3. Drain Hydraulic Fluid: If the hydraulic fluid is contaminated or if you plan to replace the filters, it is a good idea to drain the fluid before starting the cleaning process. Use the drain plugs on the hydraulic reservoir to remove the fluid safely.
   
4. Inspect the Hydraulic Pump Area: Once the hydraulic fluid has been drained, remove any covers or panels that expose the hydraulic pump area. Inspect the area for visible dirt, debris, or oil leakage. Take note of any damaged or worn components, such as seals or hoses, that may need to be replaced.
   
5. Clean the Area: Use a degreaser or solvent to clean the pump area thoroughly. Apply the cleaning agent directly to the pump housing, hoses, and surrounding areas. Use a brush or cloth to scrub away any dirt and grease buildup. Be sure to clean all areas around the pump, including the seals, valves, and hydraulic lines.
   
6. Inspect and Replace Filters: After cleaning the pump area, inspect the hydraulic filters for any signs of clogging or damage. If the filters are dirty or worn, replace them with new ones to ensure proper fluid flow and prevent further contamination.
   
7. Reassemble and Refill Hydraulic Fluid: After cleaning, reassemble any components you removed to access the hydraulic pump. Refill the hydraulic reservoir with fresh, clean hydraulic fluid. Make sure to use the manufacturer-recommended type and quantity of fluid for the L220.
   
8. Test the System: Start the engine and test the hydraulic system by operating the various functions of the skid steer. Check for any leaks, abnormal sounds, or erratic performance. If everything operates smoothly, the cleaning process has been successful.
   

Preventive Maintenance Tips for the Hydraulic System
To prevent contamination in the hydraulic pump area and extend the lifespan of the hydraulic components on your New Holland L220, consider the following tips:

1. Regularly Clean the Hydraulic System: Clean the hydraulic pump area and components at regular intervals, particularly in dusty or dirty environments. This will help prevent debris buildup and ensure smooth operation.
   
2. Inspect Seals and Hoses: Regularly check seals and hoses for wear or leaks. Replace any damaged parts to prevent hydraulic fluid from leaking into unwanted areas.
   
3. Change Hydraulic Fluid and Filters: Replace hydraulic fluid and filters according to the manufacturer’s recommended schedule to ensure the system is operating at peak efficiency.
   
4. Monitor for Leaks: Keep an eye on the hydraulic system for any signs of fluid leaks. Leaks can quickly lead to contamination and reduced performance, so addressing them early can prevent more serious problems.
   

Conclusion
The hydraulic system is one of the most important components of the New Holland L220 skid steer, and maintaining it properly is essential for optimal performance. By regularly washing out the hydraulic pump area, inspecting the system for wear and damage, and performing preventive maintenance, you can ensure that your equipment operates efficiently and remains reliable on the job site. Contaminants in the hydraulic system can lead to costly repairs and downtime, but with regular care and attention, you can keep your machine running smoothly for years to come.