Cummins/Onan 2100 Series — Generator Reassembly
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
Procedure
- Apply force to the inner race when pressing rotor bearing onto shaft; secure retaining clip.
- Torque drive disc-to-rotor bolts to 190 ft-lbs (257 Nm).
- Torque drive disc-to-flywheel bolts to 50 ft-lbs (67 Nm).
- Torque exciter stator mounting screws to 7 ft-lbs (10 Nm).
- Torque generator end plate mounting bolts to 25 ft-lbs (34 Nm).
- Make sure rubber O-ring is in place in bearing bore of endplate.
- Torque generator mounting bracket bolts to 65 ft-lbs (M12) or 35 ft-lbs (M10).
- Torque generator-to-adaptor bolts to 40 ft-lbs; adaptor-to-engine bolts to 35 ft-lbs.
- Reconnect the generator as required.
Tools required
- Torque wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Drive disc-to-rotor 190 ft-lbs (257 Nm)
- Drive disc-to-flywheel 50 ft-lbs (67 Nm)
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.