Document UT-MT-0693_EN
Page 29 of 33
Edition 15/01/2020
Supersedes edition 08/01/2019
LED INSET HELIPORT LIGHT LHI
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
Figure 25
–
Lens Gasket
4.6.2
O-Ring replacement
Remove the old O-Ring from the groove and clean the flange mating surfaces and the
groove, scraping carefully. Take care not to damage the mating surface and the
bottom and sides of the groove. Position it in the centre of its groove and push it
inside.
NOTE 1:
Make sure that the proper O-Ring is re-inserted into the groove.
NOTE 2: The seat of an O-Ring gasket is dimensioned to allow the proper
positioning when compressed between the mating surfaces. Screws properly
tightened are important in obtaining a complete seal.
TIGHTENING TORQUE
lower cover HSCS M5x10
2.5 Nm
fixture locking screw
35 Nm (for shallow base)
25 Nm (for L-868 base, size B)
4.7
CABLE LEAD WITH PLUG
4.7.1
Removing the cable lead with plug
Remove the fixture from the base and open it following instructions of
“Removing
and Opening the Light Unit From the Base”
.
Inside the lower cover, disconnect the pair of wires from the electronics by cutting
the cables, unscrew the gland and pull out the cable lead with gland gasket.
