OCEM PAPI, Use And Maintenance Manual

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ADJUSTMENTS AND
MAINTENANCE
UT-MT-0970_1.0_02-08-2022 (EN)
Use and Maintenance Manual
PAPI
27
4.3 Cleaning the front glass
Before carrying out any intervention on the fixture, cut off all external power sources and
place appropriate work-in-progress warnings on the systems.
Wait for the discharging time (at least 5 minutes) and check using appropriate instruments
that there are no residual energies before accessing the electrical equipment.
Clean the external surface of the front protective glass with neutral and non-abrasive products using clean clothes.
The external cleaning operation of the glass take place directly on the runway and do not require the removal or
the opening of the fixture. In normal conditions of use it is not necessary to clean the protective glass or the lens
internally.
Do not use solvent or diluent products to avoid damaging the glass elements.
In case the glass or the lens are damaged, replace them.