Fortress Technologies LI675 Quick Start Manual

Replacing the batteries

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LI675, LI750, LI 950 and LI 1020 Models
This FTS describes how to replace the batteries in Fortress
will take about 30 minutes.
Batteries should be replaced by a qualified service person. If you have any questions or problems, please call Powerware's
Worldwide Service at 1-800-356-5737. (Outside of the U.S. and Canada, call 1-608-565-2100).
To replace the batteries, you will need the following (use insulated tools):
Needlenose Pliers
Black Electrical Tape
Phillips Screwdriver
1/4-inch Hex Nutdriver
Torx Screwdriver
True RMS Digital Multimeter
Safety Equipment Required by Local Codes
Optional Items:
Inspection Mirror
Small Flashlight
Wood Dowel (about 7 inches long) or Wood Pencil
Section 1: Removing the Fortress' Cover.......................................................................................................................3
Section 2: Removing the Batteries .................................................................................................................................3
Section 3: Replacing the Batteries in the Fortress ..........................................................................................................5
Section 4: Putting the Cover on the Fortress ..................................................................................................................6
IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS
This publication contains important instructions that should be followed during battery replacement.
Replacing the Batteries in the Fortress
Before you go on to Section 1, read the important safety warnings.
®
LI675, LI750, LI 950 and LI 1020 models. Battery replacement
Contents Index
1
FTS 610
January 3, 1996
FTS 610
January 3, 1996

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Summary of Contents for Fortress Technologies LI675

  • Page 1 ® This FTS describes how to replace the batteries in Fortress LI675, LI750, LI 950 and LI 1020 models. Battery replacement will take about 30 minutes. Batteries should be replaced by a qualified service person. If you have any questions or problems, please call Powerware’s Worldwide Service at 1-800-356-5737.
  • Page 2 CAUTION Read the following cautions before you go on to step 1: The batteries used in this system are capable of producing dangerous voltages and high currents. They may cause severe injury if terminals are shorted together or to ground (earth). Extreme care must be taken to avoid electrical shock and burns caused by contacting battery terminals or shorting terminals during battery replacement.
  • Page 3 Section 1: Removing the Fortress’ Cover 1. Before you replace the batteries, you must shut off and unplug the equipment protected by the Fortress. 2. Next, follow these three steps: • Turn the On/Off (I/O) switch on the back of the Fortress off (to O). •...
  • Page 4 4. Now, turn the On/Off switch on the back of the Fortress on (to 1) for about four seconds to discharge the capacitor. (The capacitor is discharged when the display and lights are no longer lit.) Then, turn the switch off again. CAUTION! Make sure you turn the switch off before you continue.
  • Page 5 7. Remove and save the separator (thin cardboard or foam) that is between the two batteries. Slide the second battery towards the back of the UPS until the positive (red) cable is about two inches away from the cabinet. 8. Using the needlenose pliers, disconnect the positive (red) cable and the jumper cable from the battery (see Figure 3 on page 4 for cable location).
  • Page 6 connections. 7. Remove the tape and connect the end of the jumper cable with the positive (+) label to the positive (+) terminal of the battery. 8. Make sure the On/Off switch is still in the Off (0) position. Find the gray cable attached to the negative (black) cable.

This manual is also suitable for:

Li750Li 950Li 1020

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