Dell EMC Unity All Flash Installation And Service Manual page 77

NOTE: If the I/O module and network cables are not already labeled, label them clearly for reconnecting later.
Figure 84. Removing the power cable
2. Disconnect the network and all other cables from the back of the I/O modules and network ports on the SP assembly.
NOTE: Do not remove any cables from the other SP assembly.
3. Pull the orange release trigger while gently pushing in on the SP assembly.
The hook disengages from the locking mechanism, and the release tab slides out.
NOTE: The SP assembly comes completely out of the chassis. Be prepared to support the SP assembly to avoid
dropping it.
Figure 85. Disengaging the locking mechanism
4. Use the release handle to pull the SP assembly outward enough to grasp the sides with both hands. Then, with both hands
supporting the SP assembly, pull the SP assembly fully out of the enclosure.
Service Procedures 77