Re-Installation; Figure 5-6 Panel Cutout For Gcu 485 - Garmin G600 Maintenance Manual

5.2.2

Re-Installation

NOTE
Electrical bond between the airframe and the GCU 485 is accomplished through direct
metal-to-metal contact between pawl latches and the back side of the panel. Areas as
indicated in figure 5-6 must be free of any surface coatings.
To re-install the GCU 485 perform the following procedure:
1. Connect the electrical connector to the back of the GCU 485.
2. Place the unit in the panel cutout, ensuring that the pawl latches are fully retracted and in the
horizontal position.
3. Tighten the pawl latches with a 3/32" hex drive tool inserted through holes in GCU 485 face plate.
4. Torque the latches to 20 +/-2 in-lbs.
5. Restore power to the unit.
190-01717-B1
Rev. 1
0.50in 12.7mm TYP. 2 PLCS
SURFACE FOR ELECTRICAL BOND
PANEL BACK SIDE TYP. 2 PLCS
0.64in 16.3mm
4.970in 126.2mm

Figure 5-6 Panel Cutout for GCU 485

G500/G600 TXi Part 23 AML STC Maintenance Manual
1.73in 44mm
R0.06in 1.6mm MAX.
TYP. 4 PLCS
Page 5-11