Daktronics Galaxy AF-3400 20 mm Monochrome/RGB Double-face Displays - Manual (Page 12)

Mechanical Installation 4
Pre-installation Checklist
Verify the following before proceeding with installation:
• The display is in good condition after shipping and uncrating.
• A straight and square mounting structure is provided for the display.
Height variation in any four-foot horizontal section may not exceed ¼-inch.
• Adequate support is provided for the display so that the structure will not yield at
any unsupported points after mounting.
• Clearance of 4" of unobstructed space above the top of the display is allowed to
remove the eyebolt. Note: No clearance is required once the eyebolts are removed.
• Clearance in front of and below the display cabinet is maintained to allow
unobstructed air flow through the vents and fans and to allow access to internal
components.
2.2 Display Lifting
The installer is responsible for ensuring that the installation adequately meets local
codes and standards, including safe, adequate mounting hardware and
procedures.
Note: In order to maintain the structural integrity of the display cabinet, the 90° angle
between the cabinet and the lifting method must be maintained.
1. Lift the display into position on the support structure following the guidelines in
Figure 4.
Do not attempt to permanently support the display by the eyebolts.
2.
Weld or use ½" Grade-5 bolts and hardware to secure the mounting brackets to the
display and support structure as shown in Drawing B-310431 found in Appendix A.
3. Refer to Section 3 and the appropriate communication manual for information on
routing power and signal to the display.
4.
After installation is complete, carefully inspect the display for any holes that may
allow water to seep into the display and seal any openings with silicone.
If the eyebolts on the top of the display have been removed, plug the holes with bolts
and the rubber-sealing washer that was removed with the eyebolt, unless an overhead
structure protects the area.
Figure 4: Correct/Incorrect Lifting Procedures