Maintaining Hydro-Pneumatic Fenders

Maintaining hydro-pneumatic fenders requires a combination of pneumatic and hydraulic maintenance procedures. Here’s what should be done to ensure they continue performing well:

1. Regular Inspections:
   • Perform visual inspections for signs of wear, damage, or contamination in both the pneumatic and hydraulic chambers.
   • Check for any air leaks or pressure loss in the pneumatic section and ensure the hydraulic fluid is clean and at the correct level.
2. Pressure Monitoring:
   • Monitor the pressure in both the pneumatic and hydraulic sections regularly to ensure they are at the recommended levels.
   • Use a calibrated pressure gauge for the pneumatic chamber and a pressure monitoring system for the hydraulic section.
3. Cleaning:
   • Clean the fender’s external surface regularly to remove saltwater, dirt, and debris.
   • Ensure that the hydraulic fluid remains free from contaminants such as dirt, moisture, or air, as this can affect the fender’s performance.
4. Lubrication of Hydraulic Components:
   • Lubricate any moving parts within the hydraulic section to prevent corrosion and ensure smooth operation.
   • Check for any signs of leakage in hydraulic lines, seals, or valves.
5. Inflation and Deflation Checks:
   • Check for proper inflation and deflation of the pneumatic section. Under or over-inflation can compromise the fender’s shock absorption abilities.
6. Repairs:
   • Any damage to the pneumatic bladder or hydraulic components should be addressed promptly. Small punctures or leaks in the pneumatic chamber can typically be repaired with a patch kit, while hydraulic leaks may require professional servicing.
7. Periodic Professional Inspection:
   • It’s advisable to have professional technicians inspect and maintain hydro-pneumatic fenders annually. Specialized equipment may be needed to ensure the hydraulic and pneumatic components are functioning optimally.