IBM Power System Series Manual page 38

7. Remove the front cover. For instructions, see Removing the front cover (www.ibm.com/support/
knowledgecenter/POWER9/p9haj/p9haj_950_front_bezel_off.htm).
8. Attach the electrostatic discharge (ESD) wrist strap.
The ESD wrist strap must be connected to an unpainted metal surface until the service procedure is
completed, and if applicable, until the service access cover is replaced.
Attention:
• Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack,
or to an unpainted metal surface of your hardware to prevent the electrostatic discharge
from damaging your hardware.
• When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap
is used for static control. It does not increase or decrease your risk of receiving electric
shock when using or working on electrical equipment.
• If you do not have an ESD 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. If at any point in this service process you move away from the
system, it is important to again discharge yourself by touching an unpainted metal surface
for at least 5 seconds before you continue with the service process.
9. Remove all the fans from the disk drive backplane as shown in the following figure.
a) Put your thumb against the latch (A) in the following figure, and put your index finger against the
latch (B).
b) Push against the latch with your thumb and then pull out the latch with your index finger. This
action releases the latch.
c) Rotate the fan handle in the direction that is shown in the following figure to unlock the fan from
its slot.
d) Hold onto the fan handle and by using your hand to support the bottom of the fan, pull out the fan
from its slot as shown in the following figure.
34 Power Systems: Temple's Zeppelin procedures for install, remove, replace