Cummins/Onan — Permanent Magnet Generator Installation
Installation · PMG assembly
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan DFAA, Cummins/Onan DFAB, Cummins/Onan DFAC, Cummins/Onan DFBF, Cummins/Onan DFCB, Cummins/Onan DFCC, Cummins/Onan DFCE, Cummins/Onan DFE
Before you start
- The highly magnetic rotor will attract the stator laminations; care must be taken to avoid any contact which may damage the windings.
Procedure
- Install the complete rotor assembly to the end of the main rotor shaft using the hex head through-bolt.
- Carefully locate the stator housing to position on the generator endbracket.
- Fasten in place using the 4 bolts and clamps, and tighten securely.
- Connect the PMG wiring harness connector.
- Install the PMG assembly cover using the three M5x12mm capscrews and lock-washers.
Tools required
- Wrenches Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Four bolts and clamps
- Three M5x12mm capscrews
Full service-parts list: Cummins/Onan DFBF →, Cummins/Onan DFCC →, Cummins/Onan DFCE →, Cummins/Onan DFE →
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.