Cummins/Onan — Pre-Start Inspection
Maintenance · Generator set
From a Cummins/Onan owner's manual — check it applies to your exact model before use.
Applies to: Cummins/Onan HDKA, Cummins/Onan HDKAH, Cummins/Onan HDKAJ, Cummins/Onan HDKAK
Before you start
- Do not operate if coolant level is low
- Check for exhaust leaks before operation
Procedure
- Check engine oil level between FULL and ADD marks
- Check engine coolant level
- Inspect exhaust system for leaks
- Check fuel system for leaks
- Check battery terminals for clean tight connections
- Inspect for mechanical damage
- Check that air inlet and outlet are not clogged
- Verify all gauges working properly
Full service-parts list: Cummins/Onan HDKA →, Cummins/Onan HDKAH →, Cummins/Onan HDKAJ →, Cummins/Onan HDKAK →
Source: Cummins/Onan owner'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.