Daktronics AB-1600-1.5,2.5 - Manual (Page 16)

Electrical Installation 2-2
Daktronics is not responsible for the mounting decisions made by others.
2.3 Lifting the Display
The top of the display (or display sections) will be equipped with eyebolts to lift the unit. Take
special care not to exceed the rated load of the eyebolts. Refer to the information in Appendix B
labeled Eye Bolts to determine the allowable load of the eyebolts shipped with the display.
Figure 17 illustrates both the correct (left
example) and the incorrect (right example)
method of lifting a display. Lift the display as
shown on the left, with the lifting bar.
Stress on the eye bolts increase as the angle
between the cable and the display top
decreases.
Use every lifting point provided!
Do not attempt to permanently support the display by the eyebolts.
If mounting this display outside, make sure water or moisture doesn’t get into the display.
1. Inspect the top and sides of the display for any holes that may allow moisture to enter the display.
If the eyebolts were removed, plug the holes with bolts and the rubber sealing washer that came
with the eyebolt.
2. Plug and seal the eyebolt holes and any other openings that may allow water to enter the display
with silicone or another waterproof sealant.
CAUTION: Fully attach backsheets to the display cabinet, with all of the screws, prior to
lifting the display with the eye bolts. The backsheets provide structural support to the cabinet.
Lifting the display with the backsheets removed may cause the cabinet members to twist,
compromising the structural integrity and/or squareness of the display frame. If the display
frame is not square, normal waterproofing measures may prove inadequate, leading to
moisture related problems for the electronics.
2.4 Display Mounting
Reference Drawing:
Sectional Display Assembly Example .................................................. Drawing A-116653
The mounting methods for cabinet and sectional displays are similar. A cabinet display is a display
small enough that it ships as a complete unit – not in sections.
It is the responsibility of the installer to ensure the installation will adequately meet local codes
and standards. The mounting hardware and method is also the responsibility of the installer.
Before beginning the installation process, verify the following items.
• = The mounting structure will provide a straight and square-mounting frame for the display. Height
variation in any four-foot horizontal section may not exceed
P P P P-inch.
• = The mounting structure will not give way at any unsupported points after the display is mounted.
Figure 17: Display Lifting