Cisco 7000 Series Hardware Installation And Maintenance page 216

Step
Step
Step
Step
Step
Checkout
Installation
Perform
Step
Step
Step
This completes
Use wrench
the Allen
to
turns ensure
full to that
resistance
If screw is
and
the screw
straight
is
does not tighten
refer
easily
instructions
each of the three captive
Tighten
obscured
screw is slightly
accessible
by
inserting
wrench
chassis the
Insert
use
necessary flashlight
blower power
Locate the
bus bar the
on
backplane
bottom
connector the
at
is
VDC
Hold blower 24
the
24V
wire the
to
left
connector is fully
inserted
and bottom
the top
10 Replace
the Front Chassis
Replacing
verify the installation
to
the following
to
steps verify
ON
Thrn
AC-input or
all
the input
or
power
supplies
DC
do not
the
if
or
any
on the
supply
DC-input power
in the chapter
procedures
Listen for the blower
you
OFF
system power and do
the
Remove and bottom
the top
the Front
Chassis
Replacing
Check blower power
the
the
by
port pinching
Check two
the wires
24V
and
wire the black
connector
by
pinching
connector
the front chassis
Replace
blower
several attempts
If after
installation for instance
customer
holes contact
blower replacement
the
turn each of the captive
installation
they are aligned the backplane
in
do
hard
to not force
turn it
the
screw again
tightening
try
the following
section
to
installation screws
the of the chassis
by
left lip
wrench
long Allen into the access hole in the lower
the hole
into
straight at
and
locate wrench
to
the
guide
connection
see
port Figure
Both
the port
and
the connector
connector with the
power
and
plug the connector
into
two outward
tabs snap
plastic
front chassis panels
refer
Panels
in chapter and proceed
earlier this
new
the blower
that
is
DC-input
power supplies
LED
on
power the
DC-input power
LED
fail is on on
the
AC-input power
the
has failed
power
supply
the Installation
Troubleshooting
should
hear
immediately
the following
front chassis
panels Refer
Panels
in
earlier this
and
connector
ensure
that
and
sides
it
pushing firmly
between blower and
the
the
ground wire Ensure
that
each wire
back
near the connector
panels turn the
power
blower
the
does not operate
the captive
if
installation
screws
service for assistance
representative
Replacing Internal
clockwise
screws
holes you should
not
the chassis
around
Wiggle
several attempts
If after
Installation
Checkout
them clockwise
by
turning
and blower
the
left air duct
lip
the
90-degree angle to
backplane
the screw
to
which under
5-27 the white
is
so the
flat
keyed
are
down
and
the red or purple
flat
edge
When
the backplane
connector
secure the connector
to
Removing
the section
to
the next section
to
installed
correctly
AC LED
The
on all
power
should
supplies
the out
or
supply
Refer the troubleshooting
to
do
If
not hear it turn
it operating
you
the section Removing
to
chapter
seated the backplane
in
it is
fully
the port
into
power connector
the red or purple
they have not pulled out of the
and
firmly into the
it
pushing
ON
back and
listen
supplies
trouble
if
or
experience
you
do
not align with the backplane
Components
about two
much
feel
ensure
that
the screw
for further
The
far left
but
is
of the
If
power
of the
edge
the
in place
and
AC-input
on
If
go
LED
fail
and
power
for the
with the
Maintenance
5-71