Maintenance and Troubleshooting
25
5.15 Display Maintenance
The following service intervals are recommendations. Contact Daktronics for
recommendations based upon location-specific conditions.
Structure
At least once per year:
•
Inspect the mounting structure for corrosion, loose bolts, and overall stability.
•
Check the connections of the earth ground wires, if accessible.
Earth Ground Resistance
At least once per year ensure earth ground resistance meets local and national codes.
Note:
Ground meters for this test are available for purchase from Daktronics.
Display Cabinet
At least once per year:
•
Check for water stains and other signs of water intrusion in the display cabinet.
•
Seal any leaks that have developed with a silicone sealant or another suitable sealer.
•
Repair any door gaskets that have tears or missing pieces.
•
Check the drainage holes in the bottom of the cabinet for obstructions.
Temperature and Light Sensors
At least once per year:
•
Clear away any obstructions to airflow around the temperature and light sensors.
•
Clean the windows if they are dirty.
Fans
At least once per year:
•
Check that all fans work by turning the thermostat dial clockwise until the fans turn
on. After testing, return the thermostat to its original setting.
•
Open the intake fan assembly and clean any dirt and debris off the fan blades. Spin
the fan blades with a pen or pencil to ensure the bearings are free and the fan is
balanced.
