IBM Rear Door Heat eXchanger V2, Руководство по установке и обслуживанию

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c. Use a screwdriver to loosen the three screws that secure the top hinge
bracket to the rack.
d. Support the top hinge bracket with one hand while you remove only the
two front screws. Supporting the bracket makes it easier to remove the two
screws.
e. While two people stabilize the heat exchanger, let the top of the heat
exchanger rotate away from the rack; then, lift the top hinge bracket up
and off the heat exchanger.
f. While you support the top half of the heat exchanger with one hand, let the
top of the door rotate out far enough so that you can grasp the lift handles
and lift the heat exchanger off the bottom hinge pin.
g. Carefully lower the heat exchanger to the floor so that it rests on one
corner.
10. Position one person on each end of the heat exchanger. Have each person
grasp and hold the under side of the heat exchanger with one hand and hold
the top of the heat exchanger with the other hand. Position the third person in
the middle of the heat exchanger and grasp the heat exchanger by the
handles. Have all three people carefully lift the heat exchanger and carry it
away.
Top hinge
bracket
Screws
Bottom hinge
pin
Figure 54. Removing the heat exchanger from the rack.
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Rear Door Heat eXchanger V2: Installation and Maintenance Guide