Document UT-MT-0573
Page 8 of 28
Edition 03/13/2012
Supersedes edition 02/09/2010
SLTH – SEMI-FLUSH THRESHOLD LIGHT
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
ICAO right toe-in SLTH-G-LI (P/N 153.0021)
ICAO left toe-in SLTH-G-RI (P/N 153.0031)
The lamp is of tungsten-halogen type, rated 105 W 6,6 A, 1000 hours average lamp life,
with dicroic reflector and male faston plug wires. The lamp is locked into its seat by a
single elastic holder (stainless steel) in order to realize an easy and quick lamp
replacement.
All the optical assembly parts are factory assembled; they may be field-replaced if
necessary (parr. 4.3 - 4.4).
The lower cover consists of a treated aluminium casting; it is fastened to the dome by
means of three screws HSCH M5x16 (fig.1 - n°22). An O-Ring (fig.1 – n°20) is provided
between dome and lower cover. The dome is equipped with a reference pin for its proper
positioning on the lower cover.
The cover is provided with one threaded hole for cable entry and external grounding screw
with yellow-green cable lead, size 2.5 mm
2
, 0.460 m long, with male faston terminal. A
suitable valve is outside mounted for the leakage test.
Watertightness between fixture and shallow base is ensured by means of an O-Ring (fig.7
– n°7 separately supplied) to be placed on the rele vant groove on the shallow base.
The fixture is supplied with one cable lead with L-823 plug; it consists of two single-pole
teflon leads, size 2.1 mm
2
(#14 AWG), 0.700 m long. The plug is in compliance with FAA
AC 150/5345-26 for very quick coupling with the receptacle mounted on the shallow base.
The fixture 304 mm in diameter and 123 mm (+ 18,5 mm for plugs) high; the protrusion
above the ground is 12.7 mm.
An identification data label is externally applied over the lower cover (fig.1 – n°30).
Moreover, to identify quickly the beam colour, the dome, in front of the windows is painted
in the same colour of the light beam.
The same colour painting is provided outside on the lower cover.
See fig.2 for complete P/N information.
All hardware is made of stainless steel.
