Which condition should be checked first on a pneumatic actuator that is not engaging?

Verifying the air supply pressure is a crucial first step in troubleshooting a pneumatic actuator that is not engaging. Pneumatic actuators rely on a consistent and adequate supply of compressed air to function properly. If the air supply pressure is too low, the actuator may not receive enough force to operate, leading to engagement issues.

A proper air supply ensures that the actuator can generate the necessary movement to engage effectively. This check is fundamental because many issues can stem from insufficient pressure, which is often one of the simplest problems to rectify. If the air pressure is confirmed to be within the required range, it becomes easier to isolate other potential problems, such as mechanical binding or electrical issues.

Taking this initial step to assess the air supply pressure lays the groundwork for effective troubleshooting by addressing the most likely and straightforward cause right away.