Cummins/Onan 2100 Series — Withdrawing the Rotor From the Generator
Repair & overhaul · Generator rotor
For the Cummins/Onan 2100 Series, from the Cummins/Onan service manual.
Applies to: Cummins/Onan DGBB, Cummins/Onan DGBC, Cummins/Onan DGCA, Cummins/Onan DGCB, Cummins/Onan DGCG, Cummins/Onan DGDA, Cummins/Onan DGDB, Cummins/Onan DGDK, Cummins/Onan DGFA, Cummins/Onan DGFB, Cummins/Onan DGFC
Before you start
- Do not rest rotor on drive discs, blower or exciter.
Procedure
- Remove the adaptor casting on the drive disc end and end plate on bearing end.
- Cinch a lifting strap on the drive end of the rotor.
- Push rotor toward drive end until half the rotor core protrudes from the stator.
- Re-cinch strap around the middle of the rotor core and withdraw rotor clear of stator.
- Rest rotor in a cradle on two pole faces.
- Remove retaining clip if rotor shaft bearing is to be removed.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan DGBB →, Cummins/Onan DGBC →, Cummins/Onan DGCA →, Cummins/Onan DGCB →, Cummins/Onan DGDA →, Cummins/Onan DGDB →, Cummins/Onan DGFA →, Cummins/Onan DGFB →, Cummins/Onan DGFC →
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.