Grs 77/Gmu 44 Interconnect Harness Fabrication Instructions - Garmin GRS 77 Installation Manual

3.4

GRS 77/GMU 44 Interconnect Harness Fabrication Instructions

Table 3-3 lists parts needed for the GMU 44 interconnect harness. Some of the parts for installation are
included in the GMU 44 Connector Installation Kit. Other parts are provided by the installer. Reference
numbers refer to item bubble numbers shown in Figure A-5.
Figure A-5 Ref
1
2
3, 4, 9
5
6
7
8
*Grounding kit is based on airframe and TC/STC requirements.
Table 3-4 lists material in the GMU 44 connector kit. The GMU 44 magnetometer has an attached pigtail
with male polarity. The harness connector for the GMU 44 has female polarity.
Table 3-4. GMU 44 Connector Kit, 011-00871-00 Contents
Figure A-5 Ref
4
4
3
9
GRS 77/GMU 44 Installation Manual
190-00303-10
Table 3-3. Parts Needed for GMU 44 Installation
Description
Shield Termination
(method optional)
Shield Extension Wire
GMU 44 Connector Kit
3-Conductor Cable
2-Conductor Cable
Spider/Shield Block Kit
Cast Housing from
GRS 77 Connector Kit
Description
Backshell, Circular, Kit
Connector, Circular, Female, 9-Pin
Standard-Density Sockets, Size 20
Screw, 6-32 x .250, PHP, BR,
w/Nylon Insert, Qty. (3)
Qty.
GPN or MIL Spec
Included
Parts used depend on method
0
0 M22759/16-22
1 011-00871-00
0 M27500-22TE3T14
0 M27500-22TE2T14
0 011-00980-01/011-01169-00*
0 125-00083-00
Garmin Part Number
330-90005-00
330-00360-00
336-00022-00
211-60037-08
chosen
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Revision L