IBM Power775 Service Procedure page 30

Power775 Disk Enclosure Rail Service Procedure
STEP 24 CAUTION: Following the service procedure assures power is removed from 350 VDC power distribution
connectors before they are unplugged. However, unplugging 350 VDC power distribution connectors while
powered on, should not be done because it can cause connector damage and could result in burn and/or
shock injury from electrical arcing. (C039)
Using the 2mm Hex Torque Driver P/N 74Y0983, disconnect the four DCCA Power Cables (HPICs) from the DE
DCCAs (see Figure 22). All cables should be labeled to help when re-cabling the DE. If any of these cables
are not labeled, label them now.
Figure 22: Disk Enclosure DCCA Power Cables (HPIC)
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