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6. Maintenance
6.1 Repair- and maintenance works
Before opening the light fitting it must be disconnected from the mains supply
!
completely and in the case of versions with a battery box, also the plug connection of
the battery in the battery box must be disconnected.
For applications in dusty atmospheres the light fitting must be cleaned before opening!
Ensure that no dust can get into the light fitting when it is open!
Replace damaged explosion-proof parts by original spare parts from the Adolf Schuch
GmbH only!
Demounting and transporting the emergency control unit q9636 is allowed in a non
hazardous atmosphere only!
Spare Parts:
For spare parts inquiries, in addition to the complete type designation of the light fitting, the serial
number of the light fitting must be stated. The serial number is printed on the type plate of the light
fitting – on the bottom left.
6.2 Cleaning the light fitting
Danger of ignition due to electrostatic charging at the plastic parts of the light fitting! For
!
cleaning the housing and cover outside and inside and for cleaning internal plastic
components use only cold or lukewarm water (if necessary with a mild cleaning agent)
together with a viscose sponge or a soft fibrous-free cloth!
Pay attention to the following in case of application of this light fitting in dusty atmospheres:
Dust deposits show heat-insulating properties and thus reduce the service life of the light fitting. It is
necessary to clean the fitting from dust regularly. In case the dust layer may be higher than 5 mm it
must be ensured that the surface temperature of the light fitting does not exceed the maximum
permissible surface temperature of the specific dust considering the thickness of the dust layer. The
dust layer must not exceed 50 mm at any time.
6.3 Regular maintenance work
Follow the instructions of section 6.1!
!
Explosion-proof light fittings need regular maintenance according to the national rules of the country
they are installed. Especially components which are important for the Explosion Category have to be
carefully checked. Therefore it must to be checked very carefully:
diffuser, housing and gaskets for any kind of damages
the correct installation and tightness of explosion-proof cable glands and explosion-proof locking
screws (Torques see Chapter 3, Technical Data).
all parts of plastic inside the light fitting to attend to colour change, deformation and damaging.
the tight fit of the conductor and the condition of the cable insulation.
that the light fitting is closed correctly and the gasket is effective.
The maintenance of the fitting as an emergency light fitting has to be done following the actual
international and national regulations.
02/2022
•
L-01431-4-08
13
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