Daktronics DF-1020 - Manual (Page 22)

Mechanical and
Electrical Installation
3-2
Daktronics strongly recommends using a spreader bar, or lifting bar, to lift the
display. Using a spreader bar ensures that the force on the eyebolts is straight up,
minimizing lifting stress. Figure 4, below, illustrates two lifting methods.
The illustration shows both the preferred method (left example) and an alternative
method (right example) for lifting a display. Be sure to use every lifting point
provided.
Note: Daktronics assumes no liability for display damage or injury
resulting from incorrect setup or incorrect lifting methods.
Eyebolts are intended for lifting during installation only. Do not attempt to
permanently support the display by the eyebolts.
In installations in which an ad panel or some other display section may be added to
the base display, the lower section is installed first and secured to the support beams,
and then the upper section is placed atop or above the lower sign 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.
Installers may remove the lift eyebolts once the display is in place. On models with
13", 18" or 24" digits, thread
3 /
8
"-13 bolts into the holes. On models with 36" or 48"
digits, install 1 /
2
"-13 bolts in the holes.
3.2 Electrical installation
Reference Drawing:
Quick Install, DF-1020 Gas Price Displays ................. Drawing A-189768
Drawing A-189768 provides detailed instructions for power and signal connections
for Gas Price displays, including hookup of the light sensor and connections
between host and client displays. Refer to this drawing before undertaking any part
of the electrical installation.
Figure 4: Lifting the Display