Cummins/Onan — Keyed Connector Backshell Assembly

Installation

From a Cummins/Onan service manual covering: QSK45, QSK60, QSx15. Check it applies to your exact model before use.

Applies to: Cummins/Onan QSK45, Cummins/Onan QSK60, Cummins/Onan QSx15

Procedure

1. Position the connector grommet seal on the backside of the connector.
2. Strip 4.3 to 5.1 millimeters (0.17 to 0.20 inches) of insulation from the ends of the wire harness conductors.
3. Using the appropriate terminal crimping apparatus, crimp the connector terminals onto the stripped, bare ends of the wire harness conductors. Use a crimp tool with frame style M22520/2-01 per MIL-C-22
4. Once all conductors to be used are crimped onto connector terminals, insert each terminal into the correct cavity of the connector.
5. The grommet seal must have a sealing plug inserted in the unpopulated cavity positions.
6. Ensure that all terminals are properly seated into each of the connector cavities.
7. Place the connector into one half of the keyed backshell, laying the harness bundle as shown.
8. Place the strain relief clamp over the harness bundle and attach it to the backshell half using the two strain relief clamp screws provided.
9. Place the two thumbscrews into the proper locations of the backshell half.
10. Place the second half of the backshell in place, fitting it to the first half, and fasten the two backshell halves together using the two backshell fastening screws provided.

Full service-parts list: Cummins/Onan QSK60 →, Cummins/Onan QSx15 →

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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