What is primarily monitored to avoid damage in hydraulic elevator systems?

In hydraulic elevator systems, monitoring oil levels is crucial to their proper operation and maintenance. The hydraulic system relies on a certain volume of hydraulic fluid (oil) to function effectively. This fluid is what enables the lift to move up and down by applying pressure to the hydraulic cylinders. If the oil levels drop too low, it can lead to inadequate operation, resulting in potential damage to the hydraulic components and even compromising the safety of the elevator.

The hydraulic fluid also serves to lubricate the moving parts of the elevator, reducing wear and tear. Additionally, maintaining proper oil levels helps to prevent overheating and other mechanical failures that could arise from insufficient lubrication or fluid dynamics in the system. Monitoring other factors like voltage levels, temperature, or electrical resistance is important for other systems, but in the context of hydraulic elevators, oil levels are a primary concern to ensure safe and efficient operation.