J Series and L Series: How do I install sections of a L display?

Mounting Structure

1. Ensure that the supporting structure for the display is vertically plumb, horizontally level and square before proceeding on installing the display sections. Refer to Structure Alignment Check below for reference.

Display Sections

1. Uncase the display sections and check the integrity of the cabinet. Check for any obvious deformations of flaws from transport.
2. Attach an angled metal section with total length of two sections or more to the bottom of the metal structure using a C-clamp, as a support for the first row. Ensure that the metal support piece is horizontally level and vertically plumb. Refer to Figure 1 and Figure 2.

3.  Attach clevis shackles on each of the alignment bolts in the top of each section to lift it into place. A 10mm hole is in each of the alignment bolts. Refer to Figure 3 and Figure 4. Lift only one section at a time. Install the bottom-center section (Section 202 in Figure 5) first unless otherwise specified.

Alignment Bolt, 10mm hole for clevis for lifting.
 

1. Bring section into position.
2.  Attach the attachment plates with bolts, and use a C-clamp to lock plates to structure. Repeat for all corners. Refer to Figure 6.
3.  Bring in the next section, and attach the bolts through the plates to the section;
4.  After having at least 2 bolts on an attachment plates installed (1 on each side of the structure), the C-clamp can be removed. Refer to Figure 6.

4. Ensure the first section installed is vertically plumb and horizontally level proceeding to the next section. Refer to Section-to-Section Connection for connection details.
5. Ensure the alignment of the first row before proceeding to top-to-bottom connections. The vertical structure should be located only at cabinet seams. Other locations will block door access, which is required for installation and service. A minimum clearance of 3 inches (75mm) is required behind vents if both intake and exhaust vents are covered.
6. Shim as needed to ensure that the display sections are flushed and aligned and seams between sections are not greater than 0.6mm. (Refer to Figure 7 and Figure 8)

Shim locations for seam adjustment
Note: 0.6mm = 3.75% of pixel pitch. Regular DVX products have a seam tolerance of 2.06 % of pixel pitch (0.33mm).

7. Place a 1m or larger level at both ends and at the middle of the display seam (when possible) to ensure the display faces are flush, plumb, and flat to all adjacent sections. If they are not aligned, loosen attachment plates as needed and repeat steps 4-6.

Section-to-Section Connections

Connect the sections side to side before making any top-to-bottom connections

1. Place the sections side by side or top to bottom ensuring that display faces are as flush and aligned as possible. If performing top-to-bottom connections, ensure that bottom section lifting bolts are correctly engaged to the bottom holes in the upper sections. Refer to Figure 9.

2. Install attachment plates and corresponding bolts between sections. Refer to Figure 10 and Figure 11.

3. Do not fully tighten the connection hardware between the attachment plate and the sections until all cabinets of a given connection are in place. Ensure, however, that there is enough pressure to keep the sections self-standing.
4. When sections are flush and aligned, tighten completely all the bolts that connect the attachment plates to the sections.

Structure Alignment Check

Drawings in this sections are for illustrative purposes only and may reflect exaggerated distortions for better comprehension.

Inspect the level of the vertical sections by taking measurements of the horizontal intervals between vertical columns. Use at least 3 horizontal measurements equally spaced. Refer to Figure 12. If possible, adjust the structure or plan ahead for section adjustments while installing the display sections if the difference between any two measurements  exceeds 5mm.

 Inspect if the structure is plumb by placing a sufficiently long plumb attached to the top section of the frame. Refer to Figure 13. If possible, adjust the structure or plan ahead for section adjustments while installing the display sections if the value of δ at the bottom of the structure exceeds 1mm for each 1m of the frame's height. For example, a 10m high structure would have normal allowable δ of 10mm.

Inspect if the structure is curved by placing a horizontal reference in the vertical bar that has the furthest Z displacement when compared to the other bars. Refer to Figure 14. If possible, adjust the structure or plan ahead for section adjustments while installing the display sections if the difference between any two measurements  exceeds 5mm. 

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