Document UT-MT-0046_EN
Page 11 of 18
Edition 04/06/2020
Supersedes edition 11/03/2014
ELEVATED RUNWAY EDGE LIGHT FAU
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
3.2
INSTALLATION
For the installation of the light the following steps are suggested:
pass together the secondary cable lead with receptacle and a suitable length of
grounding wire (grounded inside the pit) through the pipe elbow
place the receptacle into the upper threaded section of the pipe elbow, by
holding it between the two plastic rings, and pass the grounding wire through the
rings (in correspondence of break point provided on the rings)
open the light, by releasing the clamping spring which secures the lens plate, and
make free the cable leads with plug from the clamping seat
pass the grounding wire through the column and then through the bottom of the
body; pull the grounding wire through the inside of the body and make a suitable
provision of wire
clamp a suitable eyelet terminal (the grounding bolt is M5 threaded) to the wire
but not connect it to the grounding bolt to avoid the wire twisting during the
installation
connect the light plug to the secondary receptacle inside the pipe elbow and be
sure the threaded ring nut is placed close to the top of the column lower
threaded section
screw the column to the pipe elbow; during this operation leave the light open
(eventually supporting by hand the assembly lens plate-lenses) and take care to
avoid the twisting of the grounding wire and the light cable leads
after the screwing completion, lock (not tighten) the column to the pipe elbow by
means of the threaded ring nut, taking care that the arrow of the outer lens is
aimed towards the runway centreline (clamping spring of the lens plate faced to
the runway)
connect the lamp cable leads to the light cable leads with plug and the eyelet
terminal of the grounding wire to the light grounding bolt. Insert the light cable
leads with plug inside the clamping seat to prevent any strain or tugging
place on the light body the levelling-alignment device (P/N 332.3250 available on
request) in fixed position, level the light body by operating the four levelling
screws and then align the light in line with the runway centreline by using the
sights of the device
tighten the threaded ring nut of the slipfitter, taking care to not modify the light
alignment. Torque the ring nut at 45 Nm
remove the levelling-alignment device and close the light, by securing the lens
plate to the body by means of the clamping spring
If provided, mount the daymarker cone on the suitable supporting plate of the
body, by fastening it by means of the four screws.
