IBM 365xX, Hardware Maintenance Manual

Page: 160 / 222

FRU Removals and Replacements
This section contains information about removals and
replacements.
Do not damage any part. Only certified and trained
personnel should service the computer.
The arrows in the “Removals and Replacements”
section show the direction of movement to remove a
FRU, or to turn a screw to release the FRU. The
arrows are marked in numeric order, in square
callouts, to show the correct sequence of removal.
When other FRUs must be removed before removing
the failing FRU, they are listed at the top of the page.
To replace a FRU, reverse the removal procedure
and follow any notes that pertain to replacement.
See “Locations” for internal cable connections and
arrangement information.
When replacing a FRU, use the correct screw size as
shown in the procedures.
Safety Notice 1: Translation on page 8
Before the computer is powered-on after FRU
replacement, make sure all screws, springs, or other
small parts, are in place and are not left loose inside
the computer. Verify this by shaking the computer
and listening for rattling sounds. Metallic parts or
metal flakes can cause electrical short circuits.
Safety Notice 3: Translation on page 10
The battery pack contains small amounts of nickel.
Do not disassemble it, throw it into fire or water, or
short-circuit it. Dispose of the battery pack as
required by local ordinances or regulations.
Safety Notice 8: Translation on page 14
Before removing any FRU, power-off the computer,
unplug all power cords from electrical outlets, remove
the battery pack, and then disconnect any
interconnecting cables.
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IBM Mobile Systems HMM