IBM SAN256B-6, Installation, Service And User Manual

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2. Unplug power cords from receptacles on all power supply assemblies.
3.
Remove faulty fan assembly.
4. Insert new fan assembly.
5. Plug power cords into all power supply assemblies from power sources to power device on.
6. Verify that fan assembly status LEDs are green.
Time and items required
The replacement procedure for each fan assembly takes less than 5 minutes. The following items are
required for the blower assembly replacement:
v Replacement fan assembly
v #1 Phillips screwdriver
Removing a fan assembly
About this task
Complete the following steps to remove a fan assembly from the device.
Procedure
1. Before removing a fan assembly, Verify if you can remove a power supply and leave device operating
(hot swap replacement), by referring to “Precautions specific to fan assemblies” on page 173.
2. Perform one of the following steps:
v If you need to power down the device to remove a fan assembly, enter the sysShutdown command.
When command output indicates the device has completed shut-down, remove power cords from
all power supply assemblies.
v If you can hot-swap the fan assembly, go on to the next step.
Note: Replace fan as soon as possible to avoid overheating and eventual system shutdown.
3. Loosen the captive screw at each end of the fan assembly until the screw releases from the chassis.
Use a #1 Phillips screwdriver if tightened.
4. Grasp the handle and pull, sliding the fan assembly from the chassis while supporting the fan
assembly from beneath as you remove it.
Fan Assemblies
175