Cummins/Onan P2400 / P3500 — Control Panel Removal
Repair & overhaul
For the Cummins/Onan P2400 / P3500, from the Cummins/Onan service manual.
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Procedure
- Remove the two bolts on each side of the control panel to disconnect it from the frame.
- Disconnect the lead connecting the engine ground.
- Disconnect the fuel cut-off solenoid, the oil alert system, and the field winding.
- To disconnect the control panel from the start solenoid, unplug the ground connection and unscrew the nut holding the positive lead.
- Remove the two bolts on the end cap to remove the end cap.
- Disconnect the DC coupler and field winding coupler; unscrew the bolt holding the couplers.
- Unscrew the nuts holding the main winding leads and disconnect them.
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.