Cummins/Onan — Generator Voltage Reconnection
Installation · Control box / 12-lead generator
From a Cummins/Onan operator's manual covering: 37.5 DEF-515R, 37.5 DEF-53R, 40.0 DEF-15R50, 40.0 DEF-3R50, 45.0 DEF-15R, 45.0 DEF-3R, 45.0 DEF-9XR, DEF-15R, DEF-15R50, DEF-3R50, DEF-515R, DEF-53R…. Check it applies to your exact model before use.
Applies to: Cummins/Onan 45.0 DEF-15R, Ford 2713E engine
Before you start
- A qualified electrician or authorized service representative must perform installation and all service.
Procedure
- Remove either right, left or top panel from control box.
- Connect wires T1 through T12 together as shown on panel drawing and Figure 1 for voltage desired.
- Open hinged control panel doors; connect lead from terminal 63 to correct terminal (H2, H3, H4, H5 or H6).
- Close front panel and secure with 1/4 turn fasteners.
- Connect load wires to generator leads.
Specs & values
- W12 reference voltage lead to H3, H4, H5 or H6 per voltage selected
Full service-parts list: Cummins/Onan 45.0 DEF-15R →
Source: Cummins/Onan operator's 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.