31. Now that the chassis is installed, test the installation by sliding the enclosure in and out of the rack a
minimum of three times. If the enclosure binds, catches, or displays any incorrect motion or behavior
retry the installation.
Note: Adjustments of the vertical rack rails may be required to fix any issues that may
occur.
32. Install the lower CMA.
a)
Note: The CMA has two arms that are labeled upper and a lower. These arms are connected
to the rails and the enclosure's chassis by four connectors. The first step in installing one of
the arms for the CMA is to first determine what orientation the arm needs to be in. The lower
arm should have the elbow on the right side, the upper arm should have the elbow on the left
side.
Orient the CMA so that the elbow is on the left hand side.
b) Attach all of the connectors to the brackets on the rails and chassis. There should be one at the elbow
side and two at the other end.
Figure 145: Lower CMA Orientation
c) Slowly slide the enclosure forward to ensure the CMA arm is operating properly, then slide it back
into the rack.
33. Grasp both handles at the front of the enclosure and pull with even pressure to extend the chassis out
of the rack until it is stopped by the safety latches. The safety latches will prevent the enclosure from
128
4 Part Replacement
User Guide 4.9 Chassis Replacement
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