Alpha Technologies FlexNet MPS48-12M - Technical Manual - Manual (Page 30)

30 021-514-B2-001, Rev. A
8.0 Maintenance
8.1 Battery Replacement
The MPS48-12M batteries are hot-swappable. There is no need to power down the unit
when replacing the batteries.
Recommended Tools and Materials:
#2 fl athead screwdriver
1. Unplug the battery connections.
2. Loosen the retaining screw on the battery retaining bracket and move the bracket clear
of the battery shelf.
3. Remove the batteries in need of replacement.
4. Replace the batteries. Re-tape the battery temperature probe to the side of the fi rst
battery on the top shelf (if battery was replaced).
5. Replace the battery retaining bracket and secure.
6. Connect the batteries. The positive battery connections are fi tted with a safety tab to
prevent misconnection.
8.2 Replacing the Power Module
Recommended Tools and Materials:
11/32" (9mm) wrench or socket.
1. Verify utility power is OFF. Tag and lock utility power switch.
2. Disconnect all connections to the power
module.
3. Loosen the four Keps nuts securing the
power module to the enclosure. There is
no need to remove them completely.
4. Slide the top of the power module forward
and remove the power module.
5. Install a new power module and secure
the four Keps nuts.
6. Reconnect all connections.
7. Restore AC power and verify the status
LED does not indicate a fault. If any other
indication is present see to
Section 7.0 for troubleshooting.
Keps Nuts Keps Nuts