IBM TotalStorage 2109 M12, Installation And Service Manual

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5. Disassemble the left and right upper mount bracket assemblies. Save the
screws for later use.
6. Attention: When you insert screws into the chassis, use the exact screws
specified in the procedure. Use of longer screws might damage the chassis.
Attach the right and left flat upper mount brackets (see Figure 25 on page 47,
items 3a and 4a) to the chassis by using four of the 10-32 x 5/16-in.
Phillips-flathead screws (item 5) per bracket. Tighten the screws. Orient the
slotted holes in the brackets towards the blower side of the chassis. See
Figure 25 on page 47 for orientation.
SJ000664
Upper Pair
of Clip Nuts
Lower Pair
of Clip Nuts
Hole 1
Hole 41
Bottom of Shelf Bracket (2x)
(between 1/2 inch spaced holes)
Figure 24. Placing the clip nuts on the rear rails (service aisle side)
46
IBM TotalStorage SAN Switch: 2109 Model M12 Installation and Service Guide