When troubleshooting a hydraulic system, the first step is to?

Identifying symptoms of failure is crucial when troubleshooting a hydraulic system because it directs you to the root cause of the problem. Understanding the specific issues—whether it's unusual noises, leaks, pressure drops, or erratic movements—allows for a targeted approach to diagnosis. This step sets a foundation for effective troubleshooting, as it informs the technician about what might be malfunctioning.

From the identified symptoms, the technician can decide which components need to be checked, potentially leading to quicker and more accurate solutions. This process is essential for efficient troubleshooting and helps in conserving resources and time in identifying failures.

While other options, such as checking components or consulting the manual, are part of the troubleshooting process, they follow after the symptoms have been assessed. Understanding the symptoms helps narrow down the focus, making subsequent steps like consulting manuals or checking specific components more efficient and effective. Replacing fluids typically comes later once the source of the problem has been identified and does not usually address the immediate need for diagnosis.