Appendix B Connector Installation Instructions; Jackscrew Backshell Installation Instructions; Shield Block Installation Parts; Parts Supplied For A Shield Block Installation (Figure B-1) - Garmin GDU 37X Installation Manual

Appendix B Connector Installation Instructions
This instruction manual assumes skill and knowledge of aircraft harness
fabrication techniques. DO NOT PERFORM THIS INSTALLATION IF YOU
ARE UNQUALIFIED.
The GDU 37X rear connector (J3701) is electrically isolated. For installations
using shielded cables, a ground pin must be tied to the connector shell.
B.1 Jackscrew Backshell Installation Instructions
B.1.1 Shield Block Installation Parts
Tables B-1 and B-2 list the parts needed to install a Shield Block. Parts listed in Table B-1 are supplied in
the GDU 37X Connector Kit (011-01921-00). Parts listed in Table B-2 are to be provided by the installer.
Table B-1 Parts supplied for a Shield Block Installation (Figure B-1)
Figure Ref Description
1 Cast Backshell Housing
6 Contacts
12 Clamp
13 Screw,4-40x.375,PHP,SS/P,w/Nylon
14 Cover
15 Screw,4-40x.187,FLHP100,SS/P,w/Nylon
Table B-2 Parts not supplied for a Shield Block Installation (Figure B-1)
Figure
Description
Ref
Multiple Conductor Shielded Cable (2-conductor shown in
2
Figure B-1)
3 Drain Wire Shield Termination (method optional)
Braid, Flat (19-20 AWG equivalent, tinned plated copper
4
strands 36 AWG, Circular Mil Area 1000 -1300)
5 Floating Shield Termination (method optional)
Ring terminal, #8, insulated, 18-22 AWG
7 Ring terminal, #8, insulated, 14-16 AWG
Ring terminal, #8, insulated, 10-12 AWG
Screw, PHP, 8-32x.312", Stainless
8
Screw, PHP, 8-32x.312", Cad Plated Steel
Split Washer, #8, (.045" compressed thickness) Stainless
9
Split Washer, #8, (.045" compressed thickness) Cad-plated
steel
GDU 37X Installation Manual
190-01054-01
CAUTION
NOTE
GPN or MIL spec
125-00175-00
336-00094-00
115-01078-04
211-60234-10
115-01079-04
211-63234-06
GPN or MIL spec
Parts used depend
on method chosen
Parts used depend
on method chosen
Parts used depend
on method chosen
Parts used depend
on method chosen
MS25036-149
MS25036-153
MS25036-156
MS51957-42
MS35206-242
MS35338-137
MS35338-42
Page B-1
Revision C