Lenovo ThinkCentre M51 Hardware Maintenance Manual - Page 119

Closing, cover, connecting, cables

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4. The fan assembly is made up of two pieces, an air baffle and the fan. Release the air baffle by pressing the plastic tab 1 as shown, then remove the air baffle from the inside of the rotating bay assembly. 5. Release the fan by pressing the two plastic tabs 3 as shown. Slide the fan downward until the retaining tabs 2 are released, then remove the fan from the inside of the rotating bay assembly. 6. Position the new fan in the rotating bay assembly and snap it into place. 7. Position the new air baffle in the rotating bay assembly and snap it into place. 8. Reconnect the fan cable to the system board connector. 9. To complete the installation, go to "Closing the cover and connecting cables." Closing the cover and connecting cables After replacing FRUs, you need to install any removed parts, replace the cover, and reconnect any cables, including telephone lines and power cords. 1. Ensure that all components have been reassembled correctly and that no tools or loose screws are left inside your computer. 2. Lower the drive bay assembly to the normal position. 3. Clear any cables that might impede the replacement of the cover. 4. Position the cover over the chassis and pivot it down over the computer until it snaps into place. Chapter 8. Replacing FRUs (Types 8095, 8141, 8142, 8145, 8420, and 8421) 113

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4.
The
fan
assembly
is
made
up
of
two
pieces,
an
air
baffle
and
the
fan.
Release
the
air
baffle
by
pressing
the
plastic
tab
±1²
as
shown,
then
remove
the
air
baffle
from
the
inside
of
the
rotating
bay
assembly.
5.
Release
the
fan
by
pressing
the
two
plastic
tabs
±3²
as
shown.
Slide
the
fan
downward
until
the
retaining
tabs
±2²
are
released,
then
remove
the
fan
from
the
inside
of
the
rotating
bay
assembly.
6.
Position
the
new
fan
in
the
rotating
bay
assembly
and
snap
it
into
place.
7.
Position
the
new
air
baffle
in
the
rotating
bay
assembly
and
snap
it
into
place.
8.
Reconnect
the
fan
cable
to
the
system
board
connector.
9.
To
complete
the
installation,
go
to
“Closing
the
cover
and
connecting
cables.”
Closing
the
cover
and
connecting
cables
After
replacing
FRUs,
you
need
to
install
any
removed
parts,
replace
the
cover,
and
reconnect
any
cables,
including
telephone
lines
and
power
cords.
1.
Ensure
that
all
components
have
been
reassembled
correctly
and
that
no
tools
or
loose
screws
are
left
inside
your
computer.
2.
Lower
the
drive
bay
assembly
to
the
normal
position.
3.
Clear
any
cables
that
might
impede
the
replacement
of
the
cover.
4.
Position
the
cover
over
the
chassis
and
pivot
it
down
over
the
computer
until
it
snaps
into
place.
Chapter
8.
Replacing
FRUs
(Types
8095,
8141,
8142,
8145,
8420,
and
8421)
113