Appendix A - Maintenance
LTPS-UM-8007-01, Issue 1
56
November 9, 2001
SPX-CABFIN01, SPX-CABFIN04
R
EPLACING
THE
B
ATTERY
1
Verify that the cabinet is on commercial power by confirming that one or both rectifier module AC ON/RFA
LEDs are lighted green.
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.
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.
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
“Installing Batteries” on page 28
A Fluke 79 Digital Multimeter (DMM) and TL20 Industrial Test Lead Set (or equivalent) are needed
to complete this procedure.
If commercial power has failed, have a generator (7.5 kW minimum) powering the cabinet during
battery replacement.
The battery string under test will be out of service from the next step until the completion of
Step 24.
Refer to the battery manufacturer’s specifications; replace any battery indicating less than
nominal voltage.
