Mounting Requirements; Unit Installation - Garmin G900X Installation And Maintenance Manual

10.7

Mounting Requirements

10.7.1 Remote Mount Rack
The remote mount rack can be installed in a variety of locations, such as the electronics bay, behind the
instrument panel, under the seat or behind the rear baggage area. Leave sufficient clearance between the
GDL 69(A) and any obstruction. Install the rack in accordance with AC43.13-2A Chapter 2 Radio
Installations. The remote mount rack should be mounted to a surface known to have sufficient structural
integrity to withstand additional inertial forces imposed by a 1.86 pound unit (1.72 lbs. for GDL 69(A)).
If it is necessary to build a shelf or bracket to mount the GDL 69(A) rack or if is not certain that the
chosen location is of sufficient structural integrity, refer to Appendix E. The rack can be mounted
vertically using four 8-32 pan head screws (MS35206, AN526 or equivalent.) It can also be mounted
horizontally using four 6-32 100° counter-sunk flathead screws (MS24693, AN507R or equivalent.)
Ensure that the rack has a ground path to the airframe by having at least one mounting screw in contact
with the airframe to minimize radiated electromagnetic interference (EMI).
10.7.2 Modular Rack
The modular rack is used to install the GDL 69(A) in the G900X/G950 integrated avionics system rack.
This modular rack may be mounted behind the instrument panel or in the avionics bay.

10.8 Unit Installation

For final installation and assembly, refer to the outline and installation drawings shown in Appendix E of
this manual.
1. Assemble the backshell connector.
2. Connect backshell connectors to the rear plate using the provided screws.
3. Mount the unit rack to the main system rack or other suitable mounting location using the
provided nutplates.
4. Carefully slide the GDL 69(A) into the rack. Ensure that the orientation of the unit allows for
the engagement of the locking stud in the channel on the rack. The unit can only be installed in
one direction.
5. Push the GDL 69(A) lever down towards the bottom of the unit. This engages the locking stud
with the dogleg slot and locks unit into the rack. If there is excessive resistance, do not force
the unit.
6. Lock the handle into the GDL 69(A) body and tighten the Phillips screw.
Do not use excessive force when inserting the GDL 69(A) into the rack. This may cause
damage to the connectors, unit and/or unit rack. If excessive resistance is felt during
installation, stop! Remove the GDL 69(A) and identify the source of resistance. The rear
plates are designed to float in the unit rack. Check to ensure the rear plates are not bound
by the connectors or spring clip.
G900X/G950 Installation and Maintenance Manual – GDL 69(A)
190-00719-00
CAUTION
Page 10-5
Revision D