Draining Hydraulic Fluid on a CAT 226 Skid Steer Loader

[MikePhua]

Introduction
The CAT 226 Skid Steer Loader is a versatile machine widely used in construction, landscaping, and agriculture. Regular maintenance, including hydraulic fluid changes, is essential to ensure optimal performance and longevity. Draining and replacing hydraulic fluid is a straightforward process but requires attention to detail to avoid contamination and ensure the system operates efficiently.
Locating the Hydraulic Fluid Drain
The hydraulic fluid reservoir on the CAT 226 is typically located beneath the machine's undercarriage. Accessing the drain plug may require removing the undercarriage plate, which is secured with bolts. Once the plate is removed, you should be able to locate the drain plug at the lowest point of the reservoir. It's crucial to have a suitable container ready to collect the old hydraulic fluid to prevent spills and ensure proper disposal.
Draining the Hydraulic Fluid

1. Prepare the Machine: Park the skid steer on a level surface and engage the parking brake.
   
2. Relieve Pressure: Before opening the hydraulic system, relieve any residual pressure by operating the hydraulic controls several times.
   
3. Remove the Drain Plug: Using the appropriate tools, carefully remove the drain plug and allow the hydraulic fluid to drain completely into the container.
   
4. Replace the Filter: While the fluid is draining, it's an opportune time to replace the hydraulic filter. This ensures that contaminants are removed and the new fluid remains clean.
   

Refilling the Hydraulic System

1. Install the Drain Plug: Once the reservoir is empty, reinstall the drain plug securely.
   
2. Add New Hydraulic Fluid: Using a clean funnel, add the recommended type and amount of hydraulic fluid to the reservoir. Consult the operator's manual for the specific fluid requirements.
   
3. Check the Fluid Level: Start the engine and allow it to run for a few minutes. Operate the hydraulic controls to circulate the new fluid. Turn off the engine and check the fluid level, adding more if necessary to reach the full mark.
   

Final Checks
After completing the fluid change, inspect the hydraulic system for any signs of leaks. Test the operation of the hydraulic functions to ensure they are working smoothly. Regularly monitor the fluid level and condition, as maintaining clean and adequate hydraulic fluid is vital for the machine's performance.
Conclusion
Draining and replacing the hydraulic fluid on a CAT 226 Skid Steer Loader is a manageable task that contributes significantly to the machine's efficiency and lifespan. By following the proper procedures and using the correct materials, you can maintain the hydraulic system in optimal condition, ensuring reliable operation for various tasks.