Cummins/Onan — Oil Fill
Maintenance · Engine oil pan
From a Cummins/Onan operator's manual — check it applies to your exact model before use.
Applies to: Cummins/Onan DQFAA, Cummins/Onan DQFAB, Cummins/Onan DQFAC, Cummins/Onan DQFAD, Cummins/Onan QST30-G5 engine
Before you start
- Before carrying out any maintenance, isolate all supplies and disconnect the battery.
Procedure
- Complete lock out procedure to ensure safe working environment.
- Refer to Engine Operation & Maintenance Manual for correct oil grade.
- Fill the engine to the correct level with clean engine oil.
- Check oil level on dipstick; level must be on the high (H) mark. Do not overfill.
- Return the generator set to the proper operating conditions.
- Operate the generator set at idle speed and check for leaks.
- Shut down the generator set.
- Wait approximately 5 minutes to allow oil to drain from upper parts of engine.
- Rectify any leaks; check the oil level; add oil as necessary to reach H mark.
- Dispose of waste material in accordance with local regulations.
Specs & values
- Oil level to high (H) mark on dipstick
Full service-parts list: Cummins/Onan DQFAA →, Cummins/Onan DQFAB →, Cummins/Onan DQFAC →, Cummins/Onan DQFAD →
Source: Cummins/Onan operator's 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.