IBM 9117-MMB, User Manual

Page: 43 / 114

3. Open the rear rack door.
4.
Attach the wrist strap.
Attention:
v
Attach a wrist strap to an unpainted metal surface of your hardware to prevent electrostatic
discharge (ESD) from damaging your hardware.
v
When 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.
v
If you do not have a wrist strap, just prior to removing the product from ESD packaging and
installing or replacing hardware, touch an unpainted metal surface of the system for a minimum
of 5 seconds.
5.
Push the input power distribution assembly into the expansion unit until it latches into place, and
then tighten the thumbscrew
(A)
to secure the assembly in place as shown in Figure 30 on page
29.
6.
Replace the input power distribution assembly cover, and then tighten the thumbscrew
(A)
as
shown in Figure 31 on page 29.
Figure 33. Replacing an input power distribution assembly
Power supplies
31