Daktronics DAKT-0204-02, Руководство пользователя

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22 Maintenance & Troubleshooting
Ventilation Maintenance
After replacing 50 percent of the fans, Daktronics recommends replacing all cooling fans to reduce the
associated maintenance costs that may incur with increased heat buildup from fan failure.
This display includes filters that are either disposable or cleanable. After one year or 1,500 hours of operation,
remove the filter and replace it with a new filter or clean the existing filter. If the display has cleanable filters,
clean the filters with water and a mild detergent, such as dish soap. Compressed air can also be used to clean
the filters if these criteria are met:
•
The nozzle is held at least 6" away from the filter.
• The pressure is no greater than 60 psi.
• The air is blown through the filter in the opposite direction from which air normally flows.
For information on ordering replacement filters, refer to the replacement parts list in Section 5.1 . Failure to
change or clean the filters may cause the display to overheat, decreasing the display life.
If the display provides rear access only, remove the back panels to service the fans and filters.
4.10 Structural Inspection
Perform annual visual inspections of the display to facilitate problem repairs and to lengthen display life.
• Check for paint and possible corrosion, especially at structural tie points and on ground rods.
• Check, tighten, and replace the fasteners as required.
• Check the electronic components closely for signs of corrosion.
•
At least once a year, check the inside of the display for signs of water intrusion, i.e., water stain marks.
Water can enter a display where weather stripping has loosened or deteriorated, where fasteners have
loosened, allowing gaps in the panels, or where moisture may enter around the hardware in the top of
the display.