Cummins/Onan 1750DQKB / 3200 Series — Rupture Basin Leak Detect Switch Test
Maintenance
For the Cummins/Onan 1750DQKB / 3200 Series, from the Cummins/Onan service manual.
Applies to: Cummins/Onan 1750DQKB, Cummins/Onan DFE
Procedure
- Remove the pipe fitting/switch assembly from the rupture basin tank.
- Move the 0/Manual/Auto switch to the MANUAL position.
- Activate leak detect switch (move float upward).
- Check control display for Rupture Basin fault message. If no indication of fault, repair defective circuit.
- Apply thread sealant to pipe fitting and install switch assembly.
Tools required
- thread sealant Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan 1750DQKB →, Cummins/Onan DFE →
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.