Western Digital Ultrastar Data102 User Manual page 103

User Guide
e. As the chassis is slid into the rack, position one installer at the rear of the rack to ensure
that the pegs on the sides of the cover will slide correctly into the rear cover alignment
brackets on both sides of the rack. If the chassis does not install smoothly or snags, check
that the rear cover alignment brackets are not interfering with the chassis sidewalls, and
try again.
Step 14 : Install the CMA(s).
a. Orient the CMA so that the elbow is on the left hand side.
b. Attach all three of the connectors to the brackets on the rails. There should be one at the
elbow side and two at the other end.
c. Slowly slide the enclosure forward to ensure the arm is operating properly, then slide it
back into the rack.
a. CMA Standard: Repeat these steps to install the upper arm with the elbow facing to the
right.
Step 15 : Cable the CMA(s).
CMA Standard:
a. Unlatch the elbow side of the arm(s) by pressing the blue button labeled "push," and then
swing the arm(s) open.
Note: The standard CMA has two arms, labeled "upper" and "lower." The lower
arm should have the elbow on the left side and be installed first; the upper arm
should have the elbow on the right side and be installed last.
Note: CMA Lite has one arm, to be installed at the lower position. This arm
should have the elbow on the left side.
Figure 86: Lower CMA Orientation
4. Part Replacement
4.7 CMA Replacement
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