Cummins HC Alternator HC544E

Alternator and Customer Connections

Check all alternator/customer connections and cabling

Test Initial AVR and PFC set up with alternator running

Check customer connection of auxiliaries

Test synchronization with alternator running

Inspect the condition of all bearings

Grease all re-greasable bearings

Record customer settings for bearing temperature sensors

Coupling Arrangement Inspection

Remove the DE adapter screen and cover to access the coupling

Check the condition of the coupling discs

Are any coupling discs damaged, cracked, or distorted?

Replace the complete set of discs if any are damaged

Perform PI test for MV/HV windings

Test temperature sensors with alternator running

Record customer settings for temperature sensors

Follow the Remove Non-Drive End section to access NDE bearing

Is the DE bearing to be replaced?

Turn off the anti-condensation heater (if fitted) and isolate from supply.

Remove the lower air inlet cover.

Remove the terminal box lid and side panel (left hand, viewed from NDE)