Document UT-MT-0693_EN
Page 26 of 33
Edition 15/01/2020
Supersedes edition 08/01/2019
LED INSET HELIPORT LIGHT LHI
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
Figure 21
–
Lens Surface to be Cleaned
4.3
LENS REPLACEMENT
If the lens is damaged it must be replaced as described below.
It is highly recommended to do a complete overhaul of the fixture. Contact OCEM -
ENERGY TECHNOLOGY for any suggestion.
4.3.1
Removing the Lens
Remove the fixture from the base and open it following instructions of
“Removing
and Opening the Light Unit From the Base”
and proceed as follows:
▪
clean out possible pieces of the old lens and all accumulated debris from inside the
fixture
▪
remove the old lens and the gasket (Figure 22
–
n°2-3), carefully clean the lens seat by
scraping and taking care not to damage the relevant walls.
4.3.2
Installing the New Lens
▪
place a new gasket (Figure 22
–
n°2) around the lens
▪
position and press by hand this assembly into the aluminium ring
▪
inspect all components inside the light unit for damages or signs of corrosion and replace
it if necessary.
Close the light fixture following instructions of paragraph
“Closing the Fixture”,
“Leakage Test”
and
“Reinstalling the fixture”.
