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Traffic Cabinet Maintenance
Traffic Cabinet Fan and Thermostat Assembly Replacement
1. Open the panelboard and turn off the circuit breaker supplying power to the fan and
thermostat assembly.
2. Disconnect the fan’s power cord.
3.
Remove the hardware securing the finger guard and fan to the assembly bracket
and remove the fan.
4. Attach the new fan to the bracket and secure it using the hardware removed in
Step
3
.
Note the airflow orientation when attaching the new fan.
5. Reconnect power to the fan.
6. Adjust the thermostat to test the fan.
Traffic Cabinet Light Replacement
1. Turn off the circuit breaker that powers the light.
2. Remove the lamp cover and lamp.
3. Insert a new lamp into the assembly and replace the cover.
4. Restore power and test the light.
Display Maintenance
The following service intervals are recommendations.
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 measures 10 ohms or less at the
site. An earth ground can run from the ground lug on the outside of the cabinet to
an earth-ground rod(s). Ensure the ground is measured as close to the ground rod as
possible.
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.
