TT26 ADS-B Transponder Installation Manual
24 January 2017
01633-00
Issue AC
______________________
Trig Avionics Limited
11
5. Installation
5.1 Unpacking and Inspecting Equipment
Carefully unpack the transponder and make a visual inspection of the unit for
evidence of any damage incurred during shipment. If the unit is damaged,
notify the shipping company to file a claim for the damage. To justify your
claim, save the original shipping container and all packaging materials.
5.2 Transponder Mounting
The TT26 ADS-B transponder is designed to be mounted in any convenient
location in the cockpit, the cabin, or an avionics bay.
Select a position in the aircraft that is not too close to any high
external heat source.
Avoid sharp bends and placing the cables too near to the aircraft
control cables.
The TT26 transponder is mounted directly to the airframe using bolts into the
three threaded holes in the chassis. Section 12 contains mounting point
positions.
To mount the transponder to the airframe, proceed as follows.
Ensure that the chassis of the TT26 is flush with the mounting surface,
which should be flat, and sufficiently strong to support the
transponder firmly.
Secure the TT26 using three M4 bolts. The bolts should be stainless
steel, or other corrosion proof finish and should be sized so that there
is between 5 mm and 7 mm of thread engagement into the mounting
holes. The bolts must be secured using a thread locking compound,
LOCTITE 242 or equivalent. Torque the bolts to between 1 Nm and
1.5 Nm, taking care not to over tighten.
