Sun Microsystems StorEdge A3000, Manual

Page: 116 / 152

7-6 Sun StorEdge A3500/A3500FC Controller Module Guide • August 1999
7.4 Replacing the Battery Unit
Caution – The battery unit is a sealed canister. When servicing the battery unit, you
must replace the entire canister, not individual batteries or parts. Opening the
battery canister will void your warranty.
The battery unit contains lead acid batteries that may be considered a hazardous
material. You must handle this unit in accordance with all applicable regulations.
After you install a new battery unit, you can use its shipping carton to return the old
unit to the manufacturer for proper recycling. All battery units are shipped with a
return label for this purpose.
1. Stop all activity to the controller module.
Make sure the Fast Write Cache LED on the controller and the Active LEDs on the
drives are off.
2. Remove the controller module front panel.
See Section 5.1.1 “Removing the Front Panel” on page 5-2.
3. Loosen the four thumbscrews at the front of the battery (
FIGURE 7-3
).
Turn the thumbscrews counter-clockwise. If they are too tight, use a flat-blade
screwdriver to loosen them.
Caution – The battery unit weighs approximately 24 pounds. Be prepared to
support its weight when you pull it out of the chassis.
!
!