Daktronics AF-3700-20 RGB - Manual (Page 16)

2. In the top section, remove the first, second, and
every even module from the bottom row. Also
remove the last module on the bottom row, if
not already removed (Figure 9). This will aid in
aligning and connecting the top and bottom
sections.
Figure 9: Top Section Preparation
3. Behind the first module in the bottom row is a
padded envelope containing hardware needed
to attach the sections together. Remove this
envelope now and use the hardware in the
following steps.
4. Mount the bottom section to the support structure,
using a lift bar and all eyebolts for lifting.
Figure 10: Correct Lifting Method
Do not lift combined sections by the eyebolts.
The eyebolts and interconnect bolts are not strong
enough to support the weight of multiple sections.
If damage occurs because of improper lifting
procedures, the warranty will be void.
5. On the bottom section, remove the eyebolts and
install the alignment pins, preferably one at each end and
one in the middle. Screw them into the holes where the
eyebolts had been located.
Figure 11: Clip Angle Attachment
6. Attach the bottom section to the support structure. Weld or
use 3/8" grade-5 bolts and hardware to secure the clip
angles to the structure (Figure 11). Attach all clip angles.
7. Lift and mount the top section on top of the bottom section
with the aid of the alignment pins (Figure 13).
Figure 12: Replacing
Alignment Pins with Bolts
8. Attach the top and bottom sections by unscrewing the alignment
pins and replacing them with the following (Figure 12):
• 1/2"-13x1-1/2" bolts (HC-1152)
• 1/2" split washers (HC-1101)
• 1/2" flat washers (HC-1095)
Also fill in the holes in each module opening with this
combination of bolts and washers in order to join the sections
securely.
6 Mechanical Installation