Lenovo ThinkCentre A58 Hardware Maintenance Manual page 116

Figure 22. Removing the primary hard disk drive
Figure 23. Installing the hard disk drive into the bracket
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Hardware Maintenance Manual
4. Press the blue release tab 1 down, slide the hard disk drive cage 2 to the
rear of the computer, and pivot it outward. Then, slide the hard disk drive
cage outward to completely remove it from the chassis.
5. Carefully pull on the blue handle 3 to remove the hard disk drive from the
drive cage.
6. Flex the sides of the blue bracket properly to remove the hard disk drive from
the bracket.
7. To install a new hard disk drive into the blue bracket, flex the blue bracket
properly and align pin 1 , pin 2 , pin 3 , and pin 4 on the bracket with
the corresponding holes in the hard disk drive. Do not touch the circuit board
5 on the bottom of the hard disk drive.
8. Slide the new hard disk drive installed in the bracket into the drive cage until
it snaps into position.