Document UT-MT-0699
Page 12 di 27
Edition 12/02/2019
Supersedes edition
26/07/2016
LED LUMINOUS GUIDANCE SIGN LIGS01
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
b)
Remove the sign from the relevant packing.
c)
The signs are normally installed so that the cable entry is located toward the runway or taxiway
edge. As general rule when facing side B the cable entry is placed on the left side.
d)
The concrete foundation for the sign should be flat and levelled. Refer to Figure 3 for relevant
data. The isolating transformer must be placed inside a concrete pit complete with pipe elbow
for the secondary cable passage or inside a steel base complete with upper plate with G 2”
threaded coupling for the plug-socket connection.
e)
It is recommended that the anchor bolts, used for the flange anchoring, are mounted after the
completion of the concrete foundation. The anchor bolts have to be walled accurately as shown
in Figure 2 and in manner to assure the parallelism of the centreline marked on the flange and
the sign centreline.
f)
Remove the frangible couplings/floor flanges from the bottom of the sign by loosening the
locking screws (set screw M8x14).
g)
Taking care of the levelling of the floor flanges is very important to ease the installation of the
sign. Place a long carpenter level across the top of the breakable couplings to verify their
alignment and levelling. Do not tighten the flanges anchor nuts, tight (only finger-tight) until
the sign installation is complete.
Lower the sign with the legs onto the frangible couplings and tight the locking screws. Check
the sign to be sure that it is levelled. Shim the floor flanges as required and put drying grout
under the flange if necessary.
NOTE:
some vertical adjustment can be obtained by rotating the frangible couplings a turn or two
in the floor flanges.
h)
Once the sign has been levelled, tighten the anchor nuts securely. (
NOTE: anchor hardware is
not supplied with the sign
). Anchor hardware should be corrosion resistant.
