Appendix A - Maintenance
LTPS-UM-8007-01, Issue 1
58
November 9, 2001
SPX-CABFIN01, SPX-CABFIN04
Figure 47.
Temperature Compensation Module Installed
17
If the cabinet:
a
Is not equipped with a BTRM system, proceed to Step 20.
b
Is equipped with a BTRM system, continue with Step 18.
18
Install a TSU on the negative terminal.
For details, refer to Lorain Products Installation Instructions.
19
Install the flat washer and lock washer, and install (but do not tighten) the terminal fastener (screw or nut).
20
Route the battery cables (and TSU leads) into the cable aisle between the battery rows.
21
Tighten both battery terminal nuts to a torque of 65-70 in-lb (735-790 [N-cm]) maximum.
22
Repeat Step 6 through Step 21 for each defective battery in the string.
23
Repeat Step 4 through Step 22 for the second battery string.
24
Plug the battery bus connector into the connector bus at the front of the drawer.
25
Using a DMM, measure the battery string voltage at the battery bus connector bus in the battery drawer.
Connect the DMM probes at the top of the open connectors at each end of the bus. If the probes are too short,
remove any protective covers from the batteries, and connect the DMM probes to the battery terminals at the
ends of the string.
26
Verify that the battery string voltage is within the range of -50.0 to -56.0 Vdc.
27
Ensure that all cables are stored so that they clear the drawer opening as the drawer is closed.
28
Reinstall the old battery cover(s) with the cutout panel already removed.
29
Close the battery drawer, and replace the battery drawer cover.
One TSU is to be installed at each battery negative post.
Temperature
compensation
module
Tie wraps
