R5906788-03 Thor series 145
4. Attach the clean dust filters to the inner side of the front cover door. Ensure that both latches and both
mounting lips (reference 1 and 2 Image 15-2) of the dust filters are engaged.
Caution: UNDER NO CIRCUMSTANCES SHOULD WET FILTERS BE INSTALLED BACK INTO THE
PROJECTOR. THIS CAN HAVE SERIOUS SAFETY CONSEQUENCES AS WELL AS JEOPARDIZE
INTERNAL COMPONENTS OF THE SYSTEM.
5. Reinstall the small side panel (if removed, see Image 15-1) and close the front cover door.
The dust filter is cleanable. See cleaning procedure for correct cleaning and drying instructions.
15.2 Vacuum cleaning of the dust filters
When to vacuum clean the dust filters?
The dust filters of the projector should be checked every month. If the filters are contaminated with dust then
cleaning the filters with a vacuum cleaner should be sufficient. In case the filters feel greasy these must be
washed. See cleaning procedure “Vacuum cleaning of the dust filters”, page 145.
Grease on the filter can build up after several months in an environment contaminated with greasy
air. Note that areas where popcorn is consumed are subject to greasy air.
This procedure assumes that the dust filters are removed from the projector.
Required tools
Vacuum cleaner with soft brush suction nozzle.
How to vacuum-clean the dust filter?
1. Carefully vacuum the air inlet side of the dust filter. Use a vacuum cleaner with a soft brush suction nozzle.
The air inlet side of the dust filter is the side which is surrounded with a glue edge.
Tip: Lightly tap the filter on its dusty side to expel heavy dust contamination.
Tip: Compressed air is also permitted to clean the filters but take care not to damage them.
Caution: Do not use compressed air inside the booth area. Bring the dust filters outside the building to
blow off the dust.
Caution: Do not damage the dust filter. Replace damaged dust filters immediately.
15.3 Washing and drying the dust filters
About filter washing and drying
For environments where popcorn grease and such can contaminate the filters, Barco advises the client to
purchase one extra set of filters to cover drying time, as well as taking following extra precautions and
instructions pertaining to filter cleaning and drying.
Cleansing agent
To clean sticky, greasy dust filters we suggest usage of Sodium carbonate crystals (Na
2
CO
3
). Sodium
carbonate (Often called washing soda, soda crystals, or sal soda in the detergent section of stores) is
widely used to effectively remove oil, grease, alcohol stains … The product itself is relatively safe, sodium
Maintenance procedures
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