IBM 7012 manual Air Flow Shock Mount Front Fan Disk Drive Frame

Front Fan

Note: Model 397 has two front fans. The procedures to remove the second fan is similar to this procedure.

Removal

1.Set the power switches of the attached devices to Off.

2.Set the power switch of the system unit to Off.

3.If the system unit has a rear cover, do the rear cover removal procedure on ªRear Coverº page 3-3.

4.Do the top cover removal procedure on ªTop Coverº page 3-4.

5.Do the front cover removal procedure on page 3-6.

6.Refer to the illustrations below for the Front Fan location.

7.Note the number and then disconnect the front fan cable from the power supply.

8.Remove the foam from the top of the fan.

9.Do not unplug the battery cable. Lift the battery and place it on the planar.

10.Do not unplug the three-digit display. With one hand, push on the rear of the 3-digit display and twist and pull the front of the three-digit display. Place it in front of the card guide frame.

11. Remove the three screws and the card guide frame assembly.

12.Pull the shock mounts just enough to clear their mounting slots and lift the fan out. This illustration reflects model 39H.

Air Flow

Shock Mount

Front

Fan

Disk Drive Frame

3-46Installation and Service Guide