IBM 704 manual Adding Power Supplies

Adding Power Supplies

To add a power supply, do the following steps:

1.Locate the cover on the power-supply bay (at the back of the power-supply chassis).

2.Remove the four screws from the cover.

3.Remove the power-supply cover and save for future use.

4.Support the power supply with the handle .3/ on the back.

5.Slide the new or replacement power supply into the chassis.

6.Install the four screws (.2/ in the following figure) to secure the power supply.

7.Connect the AC power cord to the back of the chassis. A spring-loaded interlock at the AC receptacle .1/ prevents the power supply from being removed unless the power cord has been removed.

8.Align the power-supply cover with the power-supply bay opening.

9.Place the cover over the bay.

10.Reinstall the screws that you removed from the power-supply cover.

Chapter 4. Installing Options 195