Garmin G3X - Page 312

190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page 22-6
3. Connect a Flat Braid (item 4, Figure 22-2) to the shield exposed through the window of the
prepared cable assembly (item 2, Figure 22-1
) from step 2. The Flat Braid should go out the front
of the termination towards the connector. It is not permitted to exit the rear of the termination and
loop back towards the connector (Figure 22-2
). Make this connection using an approved shield
termination technique.
NOTE
FAA AC 43.13-1B Chapter 11, Section 8 (Wiring Installation Inspection Requirements)
may be a helpful reference for termination techniques.
Preferred Method:
Slide a solder sleeve (item 3, Figure 22-1) onto the prepared cable assembly (item 2, Figure 22-1)
and connect the Flat Braid (item 4, Figure 22-2
) to the shield using a heat gun approved for use
with solder sleeves. It may prove beneficial to use a solder sleeve with a pre-installed Flat Braid
versus having to cut a length of Flat Braid to be used. The chosen size of solder sleeve must
accommodate both the number of conductors present in the cable and the Flat Braid (item 4, Figure
22-2) to be attached.
Solder Sleeves with pre-installed Flat Braid
A preferred solder sleeve would be the Raychem S03 Series with the thermochromic
temperature indicator (S03-02-R-9035-100, S03-03-R-9035-100, S03-04-R-9035-100). These
solder sleeves come with a pre-installed braid and effectively take the place of items 3 and 4,
Figure 22-2
. For detailed instructions on product use, reference Raychem installation
procedure RCPS 100-70.
Raychem recommended heating tools:
•HL1802E
•AA-400 Super Heater
•CV-1981
•MiniRay
•IR-1759
Individual solder sleeves and Flat Braid
Solder Sleeves:
Reference the following MIL-Specs for solder sleeves.
(M83519/1-1, M83519/1-2, M83519/1-3, M83519/1-4, M83519/1-5)
Flat Braid:
If the preferred Raychem sleeves are not being used, the individual flat braid selected should
conform to ASTMB33 for tinned copper and be made up of 36 AWG strands to form an
approximately 19-20 AWG equivalent flat braid. A circular mil area range of 1000 to 1300 is
required. The number of individual strands in each braid bundle is not specified. (e.g.
QQB575F36T062)
NOTE
Flat Braid as opposed to insulated wire is specified in order to allow continuing air
worthiness by allowing for visual inspection of the conductor.