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Finally, the 7% relates to the material composition and the durability of the seals. Oil seals are typically constructed from various compounds, including elastomers and polyurethane, each tailored for specific environmental conditions. A 7% threshold can indicate the percentage of material degradation that is acceptable over a defined lifespan. High-quality seals are engineered to endure extreme pressures and environmental challenges, maintaining their integrity even as their material composition undergoes wear.

3. V-Rings These seals are known for their ability to seal more effectively under misalignment conditions. They are particularly useful in applications where there may be vibrations or movements that can cause standard seals to fail.

4. Dust Covers These covers are typically used to shield sensitive equipment from dust when not in use. They can be made from various materials and can be designed for quick removal and installation.

8. Test the System Before returning the excavator to normal operation, perform a test. Check for any leaks around the newly installed seals and ensure the boom operates smoothly.