Power Module Replacement; Battery Replacement - Eaton 9PXM User Manual

Maintenance
To replace battery strings in pairs:
1. Remove the front cover.
The cover has magnetic latches on the left and right sides that hold it in place.
2. Loosen the captive screw on the retaining bracket and slowly pull the upper battery pack out of the
cabinet.
3. Repeat the procedure with the lower battery pack.
4. Treat the original and replacement battery packs with care to avoid damaging connectors or internal
circuitry. Label the original batteries with masking tape or some other identifier. Record the serial number
of the replacement packs for your warranty.
5. Insert the replacement battery packs by sliding the lower pack carefully into the cabinet. Repeat for the
upper replacement pack
6. Reinstall the retaining bracket and tighten the captive screw.
7 . Replace the front cover.
Front Covers
Figure 65. Battery Replacement

Power Module Replacement

The Eaton 9PXM easy replace feature lets you replace a power module without disconnecting the load or
damaging the UPS.
NOTE
74 Eaton 9PXM UPS (4-20 kVA) User's Guide P-164000669—Rev 05
The UPS may switch to internal Bypass mode if the remaining power modules are
insufficient to supply the required power. If empty slots exist, install replacement
modules before removing original ones.
Battery
Packs
Retaining Bracket Captive
Screw