Technical data

13773-001
24-30
Page 930 Nov 2000
C. Master Control Unit (MCU)
(1) Removal - MCU
(a) Verify the ignition switch is in the off position and remove the key. (Refer to POH)
(b) Ensure BAT 1, BAT 2, and AVIONICS master switches are in the off position.
(c) Remove the engine cowling. (Refer to 71-10)
(d) Disconnect battery and insulate battery terminals to prevent accidental connection. (Refer
to 24-30)
(e) Identify and disconnect all wires from the MCU.
(f) Remove the mounting hardware securing the MCU to the firewall.
(2) Installation - MCU
(a) Secure the MCU to the firewall using the existing mounting hardware.
(b) Identify and connect all wires to the MCU.
(c) Connect the battery. (Refer to 24-30)
(d) Install the engine cowling. (Refer to 71-10)