5786, 5787, and 7031 models D24 and T24 removal and replacement procedures

Use the removal and replacement procedures when exchanging, maintaining or repairing your I/O enclosure parts.

Before you begin a replacement procedure, perform these tasks:

If you are performing a replacement procedure that might put your data at risk, ensure, if possible, that you have a current backup of your system or logical partition (including operating systems, licensed programs, and data). For information about backing up your system or logical partition, go to http://www.ibm.com/systems/i/infocenter
Review the installation or replacement procedure for the feature or part.
Note the significance of color on your system. Blue or terra-cotta on a part of the hardware indicates a touch point where you can grip the hardware to remove it from or install it in the system, open or close a latch, and so on. terra-cotta might also indicate that the part can be removed and replaced with the system or logical partition power on.
Ensure that you have access to a medium, flat-blade screwdriver.
If parts are incorrect, missing, or visibly damaged, contact your service provider or next level of support.

DANGER

When working on or around the system, observe the following precautions:

Electrical voltage and current from power, telephone, and communication cables are hazardous. To avoid a shock hazard:

Connect power to this unit only with the IBM provided power cord. Do not use the IBM provided power cord for any other product.
Do not open or service any power supply assembly.
Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm.
The product might be equipped with multiple power cords. To remove all hazardous voltages, disconnect all power cords.
Connect all power cords to a properly wired and grounded electrical outlet. Ensure that the outlet supplies proper voltage and phase rotation according to the system rating plate.
Connect any equipment that will be attached to this product to properly wired outlets.
When possible, use one hand only to connect or disconnect signal cables.
Never turn on any equipment when there is evidence of fire, water, or structural damage.
Disconnect the attached power cords, telecommunications systems, networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures.
Connect and disconnect cables as described in the following procedures when installing, moving, or opening covers on this product or attached devices.
To Disconnect:
1. Turn off everything (unless instructed otherwise).
2. Remove the power cords from the outlets.
3. Remove the signal cables from the connectors.
4. Remove all cables from the devices
To Connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to the devices.
3. Attach the signal cables to the connectors.
4. Attach the power cords to the outlets.
5. Turn on the devices.
(D005)

Attention:

Failure to follow the step-by-step sequence for FRU removal or installation might result in FRU or system damage.

Use the following precautions whenever you handle electronic components or cables.

The electrostatic discharge (ESD) kit and the ESD wrist strap must be used when handling logic cards, SCMs, MCMs, electronic boards, and disk drives.
Keep all electronic components in the shipping container or envelope until you are ready to install them.
If you remove, then reinstall an electronic component, temporarily place the component on an ESD pad or blanket.