Technical data

PREVENTIVE MAINTENANCE
CV ELECTRICAL POWER SYSTEM MAINTENANCE MANUAL 2A5A2-ELEC-MM-1-0 9
5. Remove the bracket securing the UPS.
6. Open the UPS casing and remove the battery pack.
7. Install the new battery pack.
8. Close the UPS casing and reinstall the bracket securing the UPS.
9. At the
480 V 3Ø DISTRIBUTION PANEL, turn on BUS #1 MAIN DISCONNECT (2A5A2-CB-
EPO8-1) and
BUS #2 MAIN DISCONNECT (2A5A2-CB-EPO8-2) switches.
10. In the Control Van (CV), at the
POWER DISTRIBUTION UNIT, set POWER BUS 1
(2A5A2-1B-EP01-1) and POWER BUS 2 (2A5A2-CB-EP01-2) to ON.
11. Confirm functionality of the UPS.
12. Return valves and electrical switches to the state that they were in before this
procedure was performed.
13. Inspect and determine disposition of any parts removed. If applicable, dispose of
removed parts and/or fluids in accordance with local requirements.
14. Ensure the preceding steps were performed in accordance with local
requirements for SOC and tag in/out, as applicable.
0.
3.5 Replacing a Smoke Detector Battery
DANGER!
Shock hazard! When performing work in the CV power room, be aware of
potential exposure to high voltage sufficient to cause lethal electric shock.
Drawing References
7533009 Power system assembly (2A5A2)
Special Tools
None
Spare Parts
569-COTS-ISE-0077 Smoke detector
See COTS sheet for replacement battery ordering information.
Preconditions
None
Procedure
1. Follow instructions in Section 6.2, General Notes, regarding hazmat
requirements, torque specifications, inspection of mounting hardware, and use of
Nylok® nuts, as applicable.
2. Perform the following steps in accordance with local requirements for SOC and
tag in/out, as applicable.
3. Open smoke detector.
4. Remove battery.
5. Install new battery and close the smoke detector.