Battery - IBM TotalStorage NAS Gateway 500 Service Manual

Battery

Before performing the following procedure, read "Safety notices" on page xv.
CAUTION:
A lithium battery can cause fire, explosion, or a severe burn. Do not recharge, disassemble, heat
above 100 degrees C (212 degrees F), solder directly to the cell, incinerate, or expose cell contents
to water. Keep away from children. Replace only with the part number specified for your system.
Use of another battery may represent a risk of fire or explosion. (C08)
The battery connector is polarized; do not attempt to reverse the polarity.
Dispose of the battery according to local regulations.
To replace the system's battery, do the following:
1. Open the front and back rack doors and put the system into the service position as described in
"Placing the NAS Gateway 500 into the service position" on page 312.
2. Shut down the system as described in "Stopping the system" on page 310.
3. Remove the service access cover as described in "Service access cover removal" on page 314.
4. Remove the front bezel as described in "Front bezel removal" on page 315.
5. Disconnect and label all power and signal cables from the media drives, located in media bay 1 and
media bay 2. Then remove the media drives as described in "Media drive removal" on page 337. Note
the location of each media drive removed.
6. Remove the media device support shelf by loosening the thumbscrew and grasping the back edge of
the shelf, sliding it back, then lifting it up and out of the system chassis.
Note: The support leg located on the bottom of the support shelf is used to deactivate a microswitch.
The microswitch is located on the CEC backplane and when deactivated, cuts off power to
many of the components and connectors located on the CEC backplane. This support shelf
must be correctly seated and secured in position after any new FRU is added to the system
and you perform a system boot.
7. Remove processor book 1 as described in "Processor book removal" on page 343.
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NAS Gateway 500 Service Guide