What is the servicing limit for the rotor brake?

The servicing limit for the rotor brake is accurately defined as 450-690 PSI. This range is essential for ensuring the safe and effective operation of the rotor brake system, which is critical for securing the helicopter's rotor system while it is on the ground. Proper PSI levels are crucial because if the pressure is too low, the rotor brake may not function effectively, potentially leading to safety hazards. Conversely, if the pressure exceeds the specified limits, it could cause damage to the rotor brake components or the helicopter itself.

Understanding these limits helps ensure that maintenance personnel can adequately service the rotor brake system, contributing to overall flight safety and operational readiness. This specific range is based on extensive testing and operational data, making it an authoritative reference for any plane captain or maintenance crew member working with rotor brake systems.