Cummins/Onan — Magnetic Pickup Adjustment
Adjustments
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
Before you start
- Jam nut over-torque will damage the magnetic pickup.
Procedure
- Ensure a ring gear tooth is centered under the magnetic pickup hole. Rotate flywheel if necessary.
- Screw the magnetic pickup in until it contacts the targeted gear tooth. Do not use excessive pressure.
- Back the magnetic pickup out (counterclockwise) 1/2 to 3/4 turn.
- If a feeler gauge can be inserted between the magnetic pickup and the flywheel ring gear tooth, back the magnetic pickup out 0.71 to 1.07 mm [0.028 to 0.042 in.] from the gear tooth.
- Tighten the jam nut on the flywheel housing. While holding the magnetic pickup, torque the jam nut to 34-47 N-m [25-35 ft-lb].
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 0.71 to 1.07 mm clearance
- 34-47 N-m jam nut torque
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.