Cummins/Onan — Governor Actuator Speed Control Lever Stop Adjustment (Spec B and later)
Adjustments
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan HDKA, Cummins/Onan HDKAH, Cummins/Onan HDKAJ, Cummins/Onan HDKAK
Procedure
- Loosen the stop screw locknut and back the screw out a few turns.
- Turn the stop screw in until it just makes contact.
- Turn the screw 1 full turn further in and set the locknut (rotor not in place procedure).
- Alternatively with actuator in place: loosen set screw locknut, turn stop screw in until just makes contact, set locknut.
Full service-parts list: Cummins/Onan HDKA →, Cummins/Onan HDKAH →, Cummins/Onan HDKAJ →, Cummins/Onan HDKAK →
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.