Hydraulic and pneumatic system maintenance

Hydraulic and pneumatic system maintenance

Hydraulic System Maintenance

  • Hydraulic systems use liquids, usually oils, to transmit power.
  • Basic maintenance steps include checking fluid levels, ensuring there are no leaks, and keeping hydraulic fluid clean and uncontaminated.
  • Proper fluid levels are essential to avoid overheating and ensure the system can develop enough pressure to operate correctly.
  • Hydraulic fluid cleanliness is necessary as contaminants can cause wear and tear on parts of the system leading to premature failure.
  • Regular filter changes can help keep hydraulic fluid clean and prevent damage to the system. It’s considered good practice to change filters when changing oil.
  • Inspections of hoses, seals, and valves for signs of wear, cracks, or leaks should be done regularly. If these are spotted, full replacements are often recommended.

Pneumatic System Maintenance

  • Unlike hydraulic systems, pneumatic systems use compressed gas, usually air, to transmit power.
  • Basic maintenance steps include checking pressure levels, ensuring there’s no leakage and monitoring air quality.
  • Leaks in a pneumatic system can lead to loss of efficiency and could be a potential safety hazard.
  • Regular inspection and replacement of components such as air filters, regulators, and lubricators are necessary.
  • Air quality plays a vital role in the performance of a pneumatic system. Compressed air needs to be dry and free from particles and oil vapour.
  • Air dryers and filters should be regularly inspected, cleaned, or replaced as needed to maintain good air quality.
  • Extend the life of components by maintaining appropriate system pressure. Operating at overly high pressure can cause unnecessary strain and wear.

Importance of Maintenance Schedules

  • Regular maintenance schedules should be established and followed for both hydraulic and pneumatic systems.
  • Proactive maintenance can prevent unexpected system failure, increase system lifespan and efficiency, and reduce overall maintenance costs.
  • It’s necessary to refer to manufacturer’s guidelines and specifications for recommended maintenance schedules and procedures.
  • Record-keeping of performed maintenance activities, observations, replacements, and other relevant details is important for future diagnostic and maintenance reference.
  • Safety is key. Always follow safety guidelines while performing maintenance activities, including personal protective equipment usage, powering down systems before checks, and proper handling and disposal of fluids.