
2-2 Mechanical
and Electrical Installation
Remove immediately and do not use an assembly that shows evidence of excessive wear or
broken wires as defined by the component manufacturer.
1. Have a structural engineer certify that the building can safely support the additional
display loading and that the connection points are designed to safely carry the
scoreboard weight.
2. Attach the cable sling to the scoreboard while it is on the arena floor.
3. Hang the ends that attach to the ceiling over the sides of the scoreboard. If an end is too
short, attach a rope to the end so it can be returned from the top.
4. The scoreboard can be lifted into place many different ways.
hNote: It is the installer's responsibility to ensure that the installation is safe and that
the display meets OSHA or local regulations.
Lifting Method Example: A common method of temporarily lifting the scoreboard is to use a
pair of chain-lift motors mounted on the ceiling. Prior approval should be secured from the
facility management regarding location and acceptable loads for each rigging point.
1. Attach the chain hoist hooks to the sling master link or sling to the corner eyebolts. Be
sure the angle of the sling is greater than 45 degrees.
2. Use the chain hoist to lift the scoreboard to the appropriate height.
3. From the lift, retrieve the sling cables draped over the sides of the scoreboard and attach
them to the appropriate locations in the ceiling.
4. Hook up power and signal to outlets and junction boxes in the ceiling.
5. Level the scoreboard by adjusting the turn bracket on the sling.
6. Lower the weight of the display onto the slings.
7. Remove the chain motors.
Electric Hoist Systems
Installing an electric hoist system is more complex and may expose the customer to greater
liability. SL-3610 (found in Appendix B) discusses recommended minimum hoist specifications
and points that must be considered when selecting a hoist system.
A building engineer must review and approve the combined weight of the scoreboard,
hoist and a minimum impact factor of 15 percent.
The hoist must be accessible for periodic inspections and maintenance as required by
ANSI and OSHA. hNote: Records of period inspections must be on file to be
accessible for OSHA (see Section 3.1 of this manual).
Electrical service and control wiring must be run to the hoist location.
Additional structures are often required in the ceiling to accommodate the hoist.
If an existing hoist is to be used, or if a hoist is to be purchased directly by the end user,
the user assumes all responsibility and liability for the hoist system.
The hoist must be inspected and certified in writing by the hoist manufacturer,
manufacturer's representative or other qualified hoist inspector.
Daktronics will inspect hoists installed by Daktronics.
Daktronics will certify the scoreboard weight but will require a liability waiver signed by
the customer before the scoreboard is shipped.
Once the hoist is installed according to the specifications of the hoist manufacturer and the
building engineer:
1. Lower the hoist hooks to the scoreboard.