Cummins/Onan — Removing voltage reconnection panel assembly

Repair & overhaul

From a Cummins/Onan service manual covering: 4A2.3, 6A3.4-GS, 6AT3.4-GS, DL4, DL6, QSA3, QSA4, QSA6. Check it applies to your exact model before use.

Applies to: Cummins/Onan DGAB, Cummins/Onan DGAC, Cummins/Onan DGAD, Cummins/Onan DGAE, Cummins/Onan DL4, Cummins/Onan DL6

Procedure

1. Disconnect genset starting battery cables, negative cable first.
2. Remove six self-lock capscrews securing control door and hinge at rear housing panel.
3. Remove access cover over TB-2 terminal block.
4. Remove 17 hex-head capscrews from perimeter of reconnection panel.
5. Remove all generator leads from bottom connectors of TB-2; mark leads for reassembly.
6. Disconnect lead TB1-LO at chassis GROUND stud below panel assembly.
7. Disconnect TX1-X1 to VR21-2, TX1-X2 to VR21-4, and S1-35 to TB21-23 inside control box.
8. Reassemble in reverse order; connect generator leads to TB-2 per terminal identification sticker.

Full service-parts list: Cummins/Onan DGAB →, Cummins/Onan DGAC →, Cummins/Onan DGAD →, Cummins/Onan DGAE →, Cummins/Onan DL6 →

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.

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