LTPS-UM-8007-01, Issue 1
Appendix A - Maintenance
SPX-CABFIN01, SPX-CABFIN04
November 9, 2001
57
6
For each defective battery, carefully trace out the battery cable to identify the position of its battery bus
connector; disconnect the battery bus connector.
7
Disconnect the battery cable from the defective battery, and remove the cable from the battery drawer.
8
If the cabinet is equipped with a Battery Thermal Runaway Management (BTRM) system, locate and
disconnect the leads to the Thermal Switch Unit (TSU) at the defective battery.
9
Lift the defective battery straight up and out of the drawer.
10
Using a DMM, verify the replacement battery condition by measuring the battery voltage.
11
If battery No. 1 at the front of the drawer is being replaced, attach the temperature compensation module,
using long cable ties as shown in
. Place the module low on the front of the battery, so
that it will fit under the battery connector bus. Tighten the cable ties securely, and verify that the module is
held firmly in place. Trim any excess cable tie.
12
Place the new battery in the vacated position.
13
If battery No. 1 at the front of the drawer is being replaced, connect the plug-ended leads from the module to
the mating plug on the sense leads in the battery drawer.
14
On the replacement battery, remove the nut, lock washer, and flat washer from each terminal where
connections will be made. Coat both terminal studs with a small amount of No-Ox or petroleum jelly.
15
Place the battery cable lead which is marked positive (+) on the battery positive (+) terminal. Install the flat
washer and lock washer, and install (but do not tighten) the terminal nut.
16
Place the other battery cable lead on the negative (-) battery terminal.
Refer to the battery manufacturer’s specifications; replace any battery indicating less than
nominal voltage.
Do not loosen the large hex nut at the base of the terminal stud. Do not remove the factory-fitted
pole connectors (metal straps between cells).
