Chapter 5: System Maintenance
Step 4.
Remove the PSU
by grabbing the extraction handle and
pulling the handle upwards. The extraction handle should
gracefully disconnect the PSU from the backplane
connectors. Once dislodged, gently pull the PSU out of the
subsystem. If the subsystem is mounted in a rackmount rack,
use another hand to support its weight while removing the
module. (See
Figure 5-17
)
Figure 5-17: Removing the PSU Module
Step 5.
Use the handle to gently pull the PSU out of the chassis.
WARNING!
When a PSU is removed from the chassis, the cooling module is also
removed from the chassis.
It is recommended that the replacement procedure is completed in
less than five (5) minutes to prevent the subsystem from overheating.
Step 6.
Insert the replacement module.
Make sure the extraction
handle is held at its highest position so that the saddle
notches on the sides of the handle can snap onto the metal
protrusions along the interior walls of the PSU slot. Push the
PSU into chassis. When you feel the contact resistance and
the PSU is almost fully inserted, use slightly more force and
then push the handle downwards to secure the module.
Replacing a Faulty PSU
5-17
