Cummins/Onan Energy Command 20 — Wiring Installation
Installation · Wiring harness
For the Cummins/Onan Energy Command 20, from the Cummins/Onan service manual.
Applies to: Cummins/Onan HDKA, Cummins/Onan HDKB, Cummins/Onan HDKC
Procedure
- Label each end of every wire using wire tags; use Figures 5-7 to determine labels and connections.
- At the controller end, insert the terminated and labeled wires into the correct connector positions.
- At the genset end, insert the terminated and labeled wires into the correct connector positions.
- Use tie wraps at not less than 20-inch intervals and protective sheathing where necessary.
Tools required
- Pro-Crimper II W/Die 16-20 (Tyco/AMP 189727-1) Amazon
- Contact Extraction Tool (Tyco/AMP 90760-1) Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Wiring may be single conductors of 16-20 Amazon eBay FridayParts $14.38 AWG wire
- Minimum separation of 5 inches (127 mm) from AC power sources
- UTP cable bends or radii no less than eight times the cable diameter
Full service-parts list: Cummins/Onan HDKA →, Cummins/Onan HDKB →, Cummins/Onan HDKC →
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.