What is a common cause for wear in hydraulic elevators?

Low fluid levels in the hydraulic tank is a common cause for wear in hydraulic elevators because the hydraulic system relies on a specific amount of fluid to create the pressure necessary for lifting the elevator car. When fluid levels are low, the hydraulic pump may struggle to generate adequate pressure, which can lead to overheating, increased friction among components, and ultimately premature wear or failure of key parts such as seals and valves. This lack of proper lubrication due to insufficient fluid can lead to metal-on-metal contact, increasing wear and tear, and potentially causing significant damage to the system over time. Maintaining appropriate fluid levels is crucial for the overall health and longevity of hydraulic elevator systems.