Cummins/Onan 2100 Series — Withdrawing the Generator From the Set
Repair & overhaul
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
- Never withdraw the generator leaving the rotor to hang by the drive discs.
Procedure
- Bar engine until a rotor pole points straight down.
- Attach lifting eyes and a hoist of sufficient capacity.
- Remove the two through bolts securing generator to rubber isolation mounts.
- Raise generator end about one inch (12 mm) and block the engine under the flywheel housing.
- Remove bolts securing generator drive discs to flywheel.
- Loosen adapter casting bolts, let hoist carry full weight, remove bolts and pull generator away.
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.