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Appendix A - Maintenance
R
EPLACING THE
Observe the following safety measures when handling the batteries:
•
Batteries are electrically live at all times, and must be handled carefully. Even if the case
suffers damage, the product is capable of supplying high short-circuit current.
•
Remove rings, watches, and other jewelry. Although the voltages encountered are not
hazardous, the batteries can deliver large amounts of current.
•
Do not smoke, permit open flames, or cause sparks near a battery.
•
Do not allow metallic objects to rest on the batteries or fall across the terminals.
•
Do not lift a battery by the terminals.
•
Exercise care when handling the batteries and connecting them to the string. Two people are
recommended for lifting and placing batteries in the tray(s).
•
Keep batteries upright.
•
To avoid injury, wear heavy gloves and safety glasses during all procedures involving the
batteries.
•
Do not connect the battery string to the system until instructed to do so in the following
procedure.
If the complete battery string is to be replaced, refer to
A Fluke 79 Digital Multimeter (DMM) and TL20 Industrial Test Lead Set (or equivalent) are needed
to complete this procedure.
1
Verify that the cabinet is on commercial power by confirming that one or both rectifier module AC ON/RFA
LEDs are lighted green.
If commercial power has failed, have a generator (7.5 kW minimum) powering the cabinet during
battery replacement.
2
Remove the battery drawer cover below bay No. 1; open the battery drawer.
3
Remove any protective covers from all batteries in the drawer.
The battery string under test will be out of service from the next step until the completion of
Step 24.
4
In the battery drawer, disconnect (any) one battery bus connector from the connector bus (to isolate the battery
string under test from the bulk power supply).
5
Using a DMM, measure the voltage at each battery to verify the condition of all batteries in the string.
Refer to the battery manufacturer's specifications; replace any battery indicating less than
nominal voltage.
56
B
ATTERY
November 9, 2001
LTPS-UM-8007-01, Issue 1
"Installing Batteries" on page
SPX-CABFIN01, SPX-CABFIN04
28.
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