AC Box
Before performing these procedures, read “Safety Notices” on page xiii.
Removal
1. Power off the system (see “Powering Off and Powering On the System” on
page 492).
2. Disconnect the ac power cord.
3. Remove the rear cover (see “Covers” on page 494).
Refer to “AC Box Assembly and Rear Blowers (Rear View)” on page 550 for ac box
parts, and perform the following steps:
4. Remove the screws that hold the ac box.
5. Remove the ac box.
Replacement
Replace in reverse order.
Hot-Swappable Front Blowers
Before performing these procedures, read “Safety Notices” on page xiii.
Notes:
1. Do not power off the system.
2. When you install the new blower, some force is required to insert the blower past
the spring-loaded flap.
Removal
1. Remove the front cover (see “Covers” on page 494). Refer to “Bulk Power Supplies
and Front Blowers (Front View)” on page 548 for blower parts and perform the
following steps.
2. Remove the bulk power EMC shield.
3. On the operator panel, do the following:
a. Select function 7.
b. Press the Enter button.
c. Select function 0702.
d. Press the Enter button.
e. Select 07Fx where x is the blower to be powered off (0=blower 1, 1=blower 2,
2=blower 3, 3=blower 4).
f. Press the Enter button. The green LED on the blower will turn off.
4. Remove the blower assembly.
5. The new blower will automatically power on when it is installed.
Replacement
Replace in reverse order.
Chapter 9. Removal and Replacement Procedures 495
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