Airfield Lighting Systems UK Limited
Aviation House, Russel Gardens, Wickford, Essex, SS11 8BF
Tel +44 1702 547562 Fax +44 1702 533962 Web
www.alsukltd.co.uk
c) Once the bracket is correctly placed over the front rim of the light fitting, twist the screws
clockwise over the front rim to secure the sighting device on to the light fitting.
4.1 SETTING THE SIGHTING DEVICE
a)
The DTS light fitting is Uni-directional and must be set up precisely. After its installation on the
Airfield, please adjust the angle of azimuth and sight to complete installation prior to any
operation by Aircraft.
b)
When the sighting device is fully secured on the light it is ready to be adjusted.
c)
The sighting device can be used in four directions (Front/Rear/Left/Right) for alignment with
other fittings on the Runway or sighting reference. The telescopic sight rotates 90 degrees at
a time on the top of the DTS fitting to allow setting.
d)
Good practice is to take another fitting in the same direction of the light and use this as a target
to aim the sighting device at.
e)
Check to determine the angle required to local regulations i.e. ICAO, EASA, CAP168 etc
f)
The sighting device can be adjusted to a positive or negative toe-in of 1.5
0
, 2
0
,3
0
, 3.5
0
,4
0
,4.5
0
or 5
0
by looking into the telescope
(Fig 4)
