Document UT-MT-0778_EN
Page 25 of 39
Edition 11/03/2014
Supersedes edition 02/03/2014
LED INSET THRESHOLD/END LIGHT L
THE04
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
1. Positioning jig holes
for optical device
reference pins
2. Fixing knobs
Figure 14 – Optical device (refer to the manual UT-MT-0485 for further information)
3.3
INSTALLING THE LIGHT UNIT ON L-868 BASE, SIZE B
Install L-868 light base in compliance with FAA AC 150/5340-30.
The fixture is shipped complete (including the lamps) and is ready for installation as
received, in case of 8” fixture it shall be complete of adaptor ring.
Be sure the flange on the transformer housing is clean and the O-Ring (Figure 15 –
n°2), if used, is in place in the O-Ring groove.
Connect the plug of the fixture to the receptacle of the isolating transformer inside
the deep base. Connect the grounding wire of the fixture to the grounding wire of the
deep base (faston connection). Then press the fixture firmly and evenly by hand onto
the base flange. Secure the fixture to the base by using the six locking screws
complete with washers, supplied with the base. One drop of anaerobic adhesive,
medium type (e.g. Loctite 243) should be applied to the screws before installation;
tightening torque is 25 Nm.
The fixture is subject to optical misalignment and/or mechanical damage if not
properly seated.
