13. Cleaning the projector
13. CLEA NING THE PROJECTOR
13.1 Projector lenses
General guidelines for cleaning projector lenses
Blow off dust with clean compressed air (or pressurized air cans) .
Use lens cleaner and a c lean lens cleaning cloth to remove t he dust and co ntamination.
Wipe in broad strokes, in one direction only.
Warning: Do not wipe bac k and forwards across the lens surface as this tends to grind dirt into the coating.
Use a dry clean lens cleaning cloth to remov e left liquid or stripes. Polish with small circles.
If there are still fingerprints on the surface, repeat with lens cleaner and a clean lens cleaning cloth, then polish again with a dry cloth.
If smears occu r when cleaning len ses, replace the cloth. Smears are the firstindicationofadirtycloth.
13.2 Projector cabinet
WARNING: Always disconnect the projector from the mains power net before atte mp ting to clean the projec-
tor cabinet.
General guidelines for cleaning the projector cabinet (exterior only)
Clean the housing of the pr ojector with a damp cloth. Stubborn stains may be removed with a cloth lightly dampened with a mild
detergent solution.
13.3 Filters
General info regarding Air intake a nd filters.
The product is shipped default witho ut any filters and by avoiding filters, the ventilation system operates for longer periods between
maintenance, since n o clogging of filters means more air is allowed through the system, resulting in lower operating temperatures
over time. The air intake are just protected by a m esh. T his m esh has to be vacuum cleaned oc casionally when needed. No specific
interval for this operation, but to be p erformed when needed.
For more dem anding surrounds both smok e an d dust filters can be applied externally to the sy stem to avoid internal fouling.
General guidelines for cleaning projector filters (external)
Remove the filter from the projector then us e a vacuum to remove ex cess dust from the filter. Do not wet or soak the filter.
Cleaning of the projector filter should be done in a separate room to avoid dust contamination.
601–426 F70 SERIES 24/10/2017 93
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