Connector And Backshell Assembly - Garmin GTX 45R Installation Manual

4.4

Connector and Backshell Assembly

CAUTION
Do not place the concave side of the strain relief clamp (9) across the cable bundle. The
cable bundle can be damaged.
NOTE
Each tapped hole on the backshell (1) will only take two ring terminals (15). It is
recommended to terminate a maximum of two wires (13) per ring terminal. This
necessitates the use of a ring terminal, #8, insulated, 14-16 AWG (MS25036-153). If only
a single wire is left or if only a single wire is necessary for this connector, a ring terminal,
#8, insulated, 18-22 AWG (MS25036-149) can be used. If more wires exist for the
connector than two per ring terminal, it is permitted to terminate three wires per ring
terminal.
Refer to figure 4-2 and for this procedure.
1. Insert flathead screws (3) through holes on the shield block (2).
2. Attach to the backshell (1).
3. Insert the crimped wire harness contacts (14) in the D-sub connector (10). Refer to appendix C for
the chosen contact location.
4. Group wires as applicable for the connector.
5. Wrap the cable bundle with silicone fusion tape (19) so the backshell strain relief and cast housing
touches the cable bundle.
6. Place the backshell around the connector and wire harness so it rests against the front of the
backshell.
7. Place the smooth side of the backshell strain relief clamp (7) across the cable bundle.
8. Attach with three 4-40 x 0.375" pan head screws (6).
9. Attach the cover (8) to the backshell using two screws (9).
10. On the pan head screw(16) place in order:
• Split washer (17)
• Flat washer (18)
• First ring terminal (15)
• If necessary, second ring terminal
11. Insert the assembled pan head screw (16) into the tapped holes on the shield block (2).
190-01499-10
Rev. 1
GTX 35R/45R Installation Manual (Non-Certified Aircraft)
Page 4-5