IH 175C Suction Filter Cleaning

[MikePhua]

This discussion focuses on the cleaning of the suction filter in the IH 175C excavator. The suction filter is a crucial component of the hydraulic system, ensuring that hydraulic oil remains clean and free of contaminants, thus protecting system performance and extending its lifespan. This article summarizes the steps and considerations for cleaning the suction filter.
Function of the Suction Filter
The suction filter is an important part of the hydraulic system. Its main function is to filter the hydraulic oil entering the pump, preventing contaminants from entering the pump and other vital components. The suction filter is typically located at the intake of the hydraulic oil tank and captures large particles and debris in the oil. Keeping the filter clean is essential for the proper functioning of the hydraulic system.
Steps for Cleaning the Suction Filter

1. Preparation
   Before cleaning the suction filter, ensure that the excavator is fully shut down, and all hydraulic valves are closed. Gather the necessary tools and equipment, such as cleaning solvents, rags, wrenches, etc.
   
2. Locate the Suction Filter
   Refer to the IH 175C excavator's operator manual to find the location of the suction filter. Typically, the filter is located at the bottom or side of the hydraulic oil tank, and you may need to remove a few components to access it.
   
3. Remove the Filter
   Use the appropriate tools to loosen and remove the suction filter. Be cautious not to damage the seals or other components during removal. During this process, ensure you have a container ready to collect any hydraulic oil that may spill.
   
4. Clean the Filter Element
   Once the suction filter is removed, inspect the filter element. If it is dirty, use a dedicated cleaning solvent to remove dirt and oil residue from the filter element. If the filter is too damaged or cannot be cleaned properly, consider replacing it with a new one.
   
5. Inspect the Filter Housing
   In addition to cleaning the filter element, inspect the filter housing for any cracks, corrosion, or other signs of damage. If any damage is found, the entire filter assembly should be replaced.
   
6. Reinstall the Filter
   After cleaning, reinstall the filter in its original position. Ensure that the seals and connections are intact and properly secured. Refill the hydraulic oil and check for any leaks.
   

Common Issues and Considerations

1. Damaged Filter Element
   If the filter element is found to be severely damaged during cleaning, it is best to replace it with a new one. Using a damaged filter element can lead to contamination in the hydraulic system, which will affect machine performance and longevity.
   
2. Hydraulic Oil Quality
   While cleaning the filter, it is a good time to check the quality of the hydraulic oil. If the oil is contaminated or has degraded, it should be replaced to maintain the health of the hydraulic system.
   
3. Regular Inspections
   Even after cleaning the filter, it’s important to periodically check its condition. If the filter is not cleaned regularly, it can cause insufficient oil flow or even damage to the hydraulic system. Regular cleaning and replacement of the filter are key to maintaining system efficiency.
   

Summary
Cleaning the suction filter on the IH 175C excavator is a vital step in ensuring the proper functioning of the hydraulic system. Regular cleaning and inspection of the filter help extend the life of the hydraulic system and prevent unnecessary repair costs. By following the steps carefully, you can ensure that each part of the filter works properly.