What component's failure could lead to oil leakage in a hydraulic system?

In a hydraulic system, seals play a critical role in maintaining the integrity of the fluid within the system. These components are designed to prevent hydraulic fluid from leaking out of connections, joints, and other components where there is potential for fluid to escape. If seals become worn, damaged, or improperly installed, they can fail to contain the hydraulic fluid, leading to oil leakage.

The integrity of the seals is essential for maintaining pressure within the system and ensuring its efficient operation. A failure in this component can directly result in fluid loss, which can impair system functionality and lead to significant operational issues if not addressed promptly.

In contrast, while pumps, filters, and tanks are essential parts of a hydraulic system, their failure typically results in different types of problems, such as reduced system performance or contamination of the fluid, rather than direct oil leakage.