Cummins/Onan — Control-Inverter Removal
Repair & overhaul
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan HDKA, Cummins/Onan HDKAH, Cummins/Onan HDKAJ, Cummins/Onan HDKAK
Procedure
- Disconnect negative battery cable.
- Remove front, top and left housing panels.
- Disconnect external wiring and ground straps from housing.
- Remove screw securing housing to radiator frame.
- Remove 6 screws securing housing to inlet baffle assembly.
- Remove 5 screws along lower back of housing.
- Lift control-inverter housing out.
Tools required
- screwdriver Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan HDKA →, Cummins/Onan HDKAH →, Cummins/Onan HDKAJ →, Cummins/Onan HDKAK →
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.