Daktronics BA-1018, Display Manual

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Mechanical Installation
6-5
Use a spreader bar.
Use every lifting point provided.
Take special care not to exceed the rated load of the eyebolts. Refer to ED-7244 ,
Eyebolts , to determine allowable loads and load angles for the lifting hardware.
ED-7244 is located in Appendix B of this manual.
Avoid using other lifting methods. Cables and chains attached to the eyebolts and
directly to a center lifting point, as shown in the right-hand example in
Figure 3 , can
create a dangerous lateral force on the eyebolts and may cause the eyebolts to fail.
Daktronics scoreboards use
1
/
2
" and
5
/
8
" shoulder-type eyebolts mounted to a
1
/
8
"
aluminum plate or steel nut plate, but exceeding load angles or weight limits could
cause the bolts to pull out of the scoreboard cabinet to buckle. In either
circumstance, there could be serious damage to the scoreboard. If you must use this
method, ensure a minimum angle between the chain and scoreboard of at least 45
degrees.
Note:
Daktronics assumes no liability for scoreboard damage resulting from
incorrect setup or incorrect lifting methods
.
Eyebolts are intended for lifting only. Do not attempt to permanently support the
display by the eyebolts.
In installations in which an ad panel or some other scoreboard section may be added
to the base display, the lower scoreboard section is installed first and secured to the
support beams, and then the upper section is placed atop or above the lower section
and attached to the beams. There may be cables extending from the top of the lower
section. Guide these cables into the hole in the bottom of the upper section for later
connection.
If installers remove the lift eyebolts, plug the holes with bolts and the rubber sealing
washers used with the eyebolts. Apply silicone or another waterproof sealant to the
eyebolt openings. Inspect the top and sides of the display for any other holes or
openings that may allow moisture to enter the display and plug and seal those
openings as well.