S-tec 55x Installation Manual May 2026

If you are integrating it with (like Garmin G5 or GI 275).

Verify the yoke-mounted disconnect button kills power to the servos immediately. 🛩️ Flight Calibration

Ensure your electrical system can handle the 14V or 28V DC requirements. 🔧 Installation Steps 1. Mounting the Control Unit S-tec 55x Installation Manual

Inspect pins to ensure they are intact and the correct grade. 3. Wiring and Harnessing Poor wiring is the #1 cause of autopilot failure.

Verify your specific aircraft tail number is on the Approved Model List (AML). If you are integrating it with (like Garmin G5 or GI 275)

Check for the programmer/computer, pitch and roll servos, and pressure transducer.

The programmer/computer is designed for a standard 6.25-inch radio rack. Position within easy reach of the pilot. 🔧 Installation Steps 1

The System 55X requires a connection to the aircraft’s static system for altitude functions.