IBM TS4300 3555, User Manual

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4. Remove the USB device, if present.
Removing the tape drives
Remove any tape drives from the module that is replaced. The library tracks the drive locations and issues
events if the drives aren't in the expected locations. Note the drive locations so they can be replaced in
the same order and drive bays.
1. Use your fingers to loosen the blue captive thumbscrews on the tape drive.
2. Pull straight back on the tape drive handle while the bottom of the drive is supported to remove it from
the module.
Attention: Support the bottom of the tape drive when it is removed to avoid damaging any of the
internal connections.
Removing the power supplies
While the power supplies are removed, be sure to support the bottom. For detailed instructions, see
“Adding, removing, or replacing a power supply” on page 129.
Removing the Base or Expansion controller card
For detailed instructions, see “Replacing a Base or Expansion controller card” on page 132.
Removing the Module from a rack
Obtain assistance to lift and stabilize the module during removal and replacement.
• If you are removing a module that has a module immediately above or below it,
1. From the front of the library, use a #2 Phillips screwdriver to loosen the screws two full turns on the
module and its adjacent modules.
2. From the back of the library, unlock the alignment mechanisms that connect the module with the
adjacent modules.
Note: If a blue alignment lever lock is attached to the rear of the module, slide it to the left, then
move the alignment lever. The lever lock has an internal spring, so hold it while the alignment lever is
moved, and it automatically springs back into place after the lever is moved. See Figure 43 on page
50.
Figure 63. Unlocking or disengaging the alignment lever
126 IBM TS4300 Tape Library Machine Type 3555: User's Guide