Cummins/Onan RBAA — Service Procedure

For the Cummins/Onan RBAA.

Applies to: Cummins Onan Rbaa

Procedure

1. Remove the fan and hydraulic motor (Fig-
2. Remove the drive bearing retention ring so that
3. The generator wrapper has two holes on oppo-
4. Scribe lines before separating the endbells
5. Disconnect the field leads from the exciter end-
6. Remove the four nuts and washers on the sta-
7. Remove the exciter endbell bracket from the
8. Tap the exciter endbell free and lift it away.
9. Lift the stator straight up free of endbell and ro-
10. Remove the four through bolts.
11. Remove the air baffle.
12. Thread an M10 eyebolt into the end of the rotor
13. Use a puller to remove a defective exciter rotor

Source: manual:943-0502 Onan RBAA Hydraulic Genset Service manual (02-2005).pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.