Fujitsu 1740 User Manual page 127

Front brackets L and R are part of the table.
3
Insert the hooks at the front of the front brackets L and R into the square
holes right above the M6 cage nuts that were attached in step 2 according
to Section 4.4.1, "Inserting cage nuts."
Place the rear of the table on rear brackets L and R that were attached in step 1.
4
Confirm that the heights of the left and right square holes into which the
hooks were inserted are the same.
Since the table is only provisionally mounted, refrain from placing any loads on it.
4 Handling the Rack after Installation
E
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