Cummins/Onan — Withdrawing Generator From Set
Repair & overhaul
From a Cummins/Onan service manual covering: C30 D6, C33 D5, C35 D6, C38 D5. Check it applies to your exact model before use.
Applies to: Cummins/Onan C30 D6, Cummins/Onan C33 D5, Cummins/Onan C35 D6, Cummins/Onan C38 D5
Before you start
- Do not use fan blade to bar over engine.
- Never withdraw generator leaving rotor hanging by drive discs.
Procedure
- Bar engine until one rotor pole points straight down.
- Attach lifting eyes and hoist of sufficient capacity.
- Remove two through bolts securing generator to isolation mounts.
- Raise generator end about one inch (12 mm); block engine under flywheel housing.
- Remove bolts securing drive discs to flywheel.
- Loosen adapter casting bolts; adjust hoist, remove bolts, 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 C35 D6 →
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.