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3 INSTALLATION PROCEDURE
3.1 Unpacking Unit
Carefully unpack the equipment and make a visual inspection of the unit for evidence of damage incurred
during shipment. If the unit is damaged, notify the carrier and file a claim. To justify a claim, save the
original shipping container and all packing materials. Do not return the unit to Garmin until the carrier has
authorized the claim.
Retain the original shipping containers for storage. If the original containers are not available, a separate
cardboard container should be prepared that is large enough to accommodate sufficient packing material to
prevent movement.
3.2 Wiring Harness Installation
Allow adequate space for installation of cables and connectors. The installer shall supply and fabricate all
of the cables. All electrical connections to the GRA 5500 are made through one 55 pin circular connector
(Figure
4-1).
Section 4
defines the electrical characteristics of all input and output signals. Required
connector and associated hardware are supplied with the connector kit.
See
Appendix C
for examples of interconnect wiring diagrams. Construct the actual harness in accordance
with aircraft manufacturer authorized interconnect standards.
Contacts for the 55 pin connector must be crimped onto the individual wires of the aircraft wiring harness.
Table 3-1 through
Table 3-4
Pin Contacts
Manufacturer
Military P/N
Use with
Contact
MS
Size
Part Number
22D
M81969/14-01*
*Double end insertion/removal tool.
190-01277-00
Rev. A
list contact part numbers (for reference) and recommended tools.
Table 3-1 Pin Contact Part Numbers
Item
Manufacturer
Military
Table 3-2 Recommended Crimp Tools
Contact Size/Type
22D Socket
Table 3-3 Recommended Insertion Tools
Plastic Tools
Color
Green/(White)
Part Number
M39029/56-348
Crimping Tool
M22520/2-01
M22520/7-01
Metal Tools
Angle Type
Proprietary
MS Part
Part
Number
Number
M81969/8-01 11-8674-24
GRA 5500 Installation Manual
Turret Die or
Positioner
M22520/2-07
M22520/7-05
Straight
Type
Proprietary
Color
Part
Number
11-8794-24
Black
Page 3-1
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