Instruction Manual

G1000 / GFC 700 System Maintenance Manual - 200/B200 Series King Air Page 6-23
190-00915-01 Revision 9
6.36 GRA 5500 Radar Altimeter
Removal:
1. Gain access to the avionics shelf in the tail area.
2. Disconnect the electrical connector.
3. Disconnect the two coaxial cable connectors, making note of which cable is Transmit (Tx) and
which cable is Receive (Rx).
4. Pull back on the lockdown mechanism and simultaneously turn counterclockwise until free.
5. Disengage the lockdown mechanism collar from the GRA 5500 hook and slide the GRA 5500
forward to remove the unit from the rack.
Reinstallation:
1. Visually inspect the connectors to ensure there are no bent or damaged pins. Repair any damage.
2. Place the unit on the mounting rack ensuring the GRA 5500 rear feet are aligned in the mounting
rack slots.
3. Slide the GRA 5500 back until the feet are fully engaged with the mounting rack.
4. Lift the lockdown mechanism collar in place on the GRA 5500 hook and hand turn the lockdown
mechanism knob clockwise until the GRA 5500 is secure and cannot reasonably be ratcheted any
tighter by hand.
5. Connect the electrical connector.
6. Connect the two coaxial cable connectors.
7. Configure the GRA 5500 according to Section 3.29 and test per Section 7.22.