Power775 Disk Enclosure Fan Service Procedure
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STEP 20
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 18).
All cables should be labeled to help when re-cabling the DE.
If any of these cables
are not labeled, label them now.
Find the cable that was connected to and labeled DCCA1-T1. Connect this cable to Cable Assembly, HPIC tool
P/N 45D7998 (shipped in Power 775 Fill & Drain Tool Kit), using 0.07Nm torque. If the HPIC tool is not
labelled, follow the HPIC cable to the other end and label it T1. Do not connect it to the DCCA at this time.
Find the cable that was connected to and labeled DCCA1-T4. Connect this cable to Cable Assembly, HPIC tool
P/N 45D7998 (shipped in Power 775 Fill & Drain Tool Kit), using 0.07Nm torque. If the HPIC tool is not
labelled, follow the HPIC cable to the other end and label it T4. Do not connect it to the DCCA at this time.
Tools required:
2mm Hex Torque Driver P/N 74Y0983
Cable Assembly, HPIC tool P/N 45D7998 (shipped in Power 775 Fill & Drain Tool Kit)
Figure 18 Disk Enclosure DCCA Power Cables (HPIC)