IBM manual Power Systems Power supplies for the 9117-MMB or 9179-MHB

6.At the front of the expansion unit, slide the cable retention bracket for the power supply that you want to remove, to the open position (A). Disconnect the cable (B) as shown in Figure 13.

Figure 13. Disconnecting the power cable from the front of an expansion unit

7.Attach the wrist strap.

Attention:

vAttach a wrist strap to an unpainted surface of your hardware to prevent electrostatic discharge (ESD) from damaging your hardware.

vWhen using a wrist strap, follow all electrical safety procedures. A wrist strap is for static control. It does not increase or decrease your risk of receiving electric shock when using or working on electrical equipment.

vIf you do not have a wrist strap, just prior to removing the product from ESD packaging and installing or replacing hardware, touch an unpainted surface of the system for a minimum of 5 seconds.

8.Rotate the power supply locking handle (A) to the open position, as shown in Figure 14 on page 15. Pull out the power supply from the expansion unit.

14Power Systems: Power supplies for the 9117-MMB or 9179-MHB