Step 4. Replace parts in the reverse sequence.
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7133 Models D40 and T40 Service Guide
e. Do the same actions with the latch 1 to unplug the disk-drive-status-light
flexible circuit from the controller card assembly.
f. Disconnect the support strap 3 from the front cover.
g. Remove the two locknuts 4 and, if present, the plastic cable shield 5 .
Do not lose the plastic cable shield.
h. Remove the front cover assembly.
Note: Ensure that the latches of the operator panel flexible circuit and the disk
drive status lights flexible circuit engage fully in the slots of the 7133
frame assembly.