Daktronics 4200 Series, Installation Manual

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14 Section Splicing
4.2 Display Splicing
1. Ensure the splice key is in the splice channel and the alignment
brackets are installed on the bottom display section. Refer to
Figure 8.
2. Lift the display top section off of the truck.
3. Slowly lower the display top section until it rests above the
bottom section.
4. Continue lowering the display until it rests on the display
bottom sections and the splice key is inside the display top
section splice channel.
5. Starting at one end of the display, insert the top lip of the splice
wrench into the top section mounting
channel. Refer to
Figure 9.
6. Rest the bottom lip of the splice wrench
against the back of the bottom section
mounting channel.
7. Firmly pull down on the splice wrench until
the back of both display sections align and
the splice key is fully engaged in the top and
bottom section splice channels.
8. Repeat Steps 5 - 7 approximately every foot
along the back of the display.
9. Verify the LEDs in the display top section and
the display bottom section align with each
other.
10. Ensure the display sections align from front to
back.
11. Starting at one end of the display, place the flat
splice plates over the bolts and place a nut and
washer on each bolt. Refer to
Figure 11.
Note: There are two different styles of splice
plates shipped on the display. The flat splice
plates need to be distributed along the back
of the display. The "C" style splice plate
(
Figure 10) provides support to the bottom
display section when lifting and is shipped
near the end of the display.
12. Using an impact wrench, the torque stick, and a
1
1
/
16
" socket to tighten all of the nuts on the mounting
plate to 75 ft-lb.
13. Attach and secure all mounting plates along the
section splice. Place one splice plate on each end and
evenly distribute the remaining splice plates along the
back of the display.
14. Remove the alignment bracket from the bottom
display sections.
Display
Section
Splice Key
Display
Section
Figure 8: Installed Splice Key
Display
Section
Display
Section
Splice Tool
Figure 9: Aligning Display Sections with Splice Tool
Flat Splice Plates
“C” Splice Plates
Vertical
Splice
Tubes
Power Entrance
Splice Cables
Lift-Eye
Mounting Clamp
Horizontal Splice Tubes
DMP
ISP
Alternate
DMP and
ISP Bay
Surge
Figure 10: Splice Plate Installation Locations
Splice
Plate
Bolt
Nut
Washer
Display
Section
Display
Section
Display Face
Figure 11:
Installed Flat Splice Plate