Daktronics VANGUARD VL-3500 Series, Руководство пользователя

Страница: 27 / 33

Parts Replacement
23
4. Remove the ACP.
5. Perform the needed maintenance.
6. When the ACP is ready for installation, slide it back into place.
7. Hold the ACP in place and install the mounting screws.
8. Reconnect all the connections removed from the ACP.
9. Secure any retaining screws and prepare the ACP for operation.
Fans and Filters
For preventative maintenance, perform the following:
• Check the fan blades for dirt and debris. Clean the fan blades to maintain the
fan’s efficiency and to ensure proper cooling. If the fan blades have a large
accumulation of dirt and debris, change the filters more often.
• Spin the fan blades with a pen or pencil to ensure the bearings are free and the
fan is balanced.
• Check the filters every year. Clean the filters with water and a mild detergent,
such as dish soap.
• Compressed air can be used to clean the filter provided the nozzle is held at
least 6" away from the filter, the pressure is no greater than 60 psi, and the air is
blown through the filter opposite the airflow direction as indicated by the arrow
stamped on the filter frame.
Fan Replacement
Note: Before removing the fan, take note of the orientation of the arrows on the side
of the fan housing.
1. Disconnect the power cord from fan.
2. Unlock the fan/finger guard assembly by pushing down on the assembly and twisting
counterclockwise. The leg on the finger guard will snap out of place.
3. Remove the fan assembly from the obround slot.
4. Detach the finger guard to the fan.
To replace the ventilation intake fan, follow the previous steps in reverse order. Ensure the
fan is properly oriented.
Filter Replacement
To install a new filter:
1. Locate the plastic filter trays on the bottom of the display.
2. Press upward firmly on the tab located on the bottom front of the filter tray.
3. Pull the tray outward.
4. Remove the filter from the tray.
Replace the filter and slide the tray back into the display until the tab clicks in place.