Document UT-MT-0428
Page 27 of 35
Edition 11/03/2014
Supersedes edition 04/30/2012
INSET RUNWAY EDGE LIGHT SLRE
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
Verify the correct position of O-Ring between dome and lower cover (Figure 1 –
n°20);, mount the lower cover on the dome and fasten it by means the three screws
HSCH M5x16 (Figure 1 - n°22). One drop of anaerobic adhesive lower type (e.g.
LOXEAL 24-18) should be applied to the screws before installation; tightening torque
is 2.5 Nm.
4.2.4
Leakage test
The assembly should be given a 1.38 kPa air pressure test. This can be done by
connecting an external air pressure line to the valve (Figure 18 – n°2) provided on the
lower cover. Immerge the assembly under water, so air loss will be easily viewed if
some part is damaged or assembling is wrong.
If there is no air loss then test is passed successfully.
Light unit is ready to be field installed.
Figure 18 - Lower Cover with Pressure Valve
4.2.5
Reinstalling the fixture
Every time the fixture is removed from the base
replace
the following items with a new
making sure that are right placed in the relevant groove:
the six special seal lock washers;
O-Ring around the dome (Figure 13 – n°1);
O-Ring between fixture and 12” shallow base (Figure 13 – n°3).
The fixture is ready to be field installed.
1.
