Dynamic Mounting Down And Out Mount Assembly & Installation Directions page 6

Above Shelf Mounting
To get as much downward travel as possible when mounting above a shelf it
is very important that you put extra thought into the mounting process. In
general, the higher the Down and Out Swivel Mount is above the shelf the
more downward travel you will get. Also, the lower the television is
attached on the mount, the higher the Down and Out Swivel Mount can be
mounted to the wall.
Figure 6 and the table below can be used together to calculate how much
downward travel you will get with different shelf depths and heights above
the shelf. The smaller table tells you the minimum height the television
needs to be mounted above the shelf.
For example, you want to find the downward travel [T] when you have a 9
inch shelf depth [D] and you attach the bottom of the mount 7.25 inches
above the shelf [H]. First find the corresponding [D] and look down the
column and find the closest [H], which in this case is 7 and 8.25. Round
down to be on the safe side to 7 inches [H]. Now go left along the row and
find the corresponding Travel [T]. In this case you will get a downward
travel of at least 26.5 inches.
Calculating the clearance needed between the bottom of the television and
the shelf in the up position [C] to ensure the television will not hit the shelf
is much easier. Simply find the shelf depth [D], in this example 9 inches,
and go down the column and find the corresponding height, which is 2.75
inches.
Figure 6 Shelf Clearance Drawing
Shows example with 9in Shelf Depth [D], 26.5in
Downward Travel [T], and Mounted 7in above the
Shelf [H].
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