Cummins/Onan — Connect Battery
Installation
From a Cummins/Onan service manual covering: C25 D6, C30 D6, C35 D6, C40 D6, C50 D6, C60 D6. Check it applies to your exact model before use.
Applies to: Cummins/Onan C25 D6, Cummins/Onan C30 D6, Cummins/Onan C35 D6, Cummins/Onan C40 D6, Cummins/Onan C50 D6, Cummins/Onan C60 D6, Cummins/Onan 4BT3.3 engine
Before you start
- Do not connect battery cables until installation is complete to prevent accidental startup.
Procedure
- Connect the positive battery terminal.
- Connect the negative battery terminal.
- Make sure black and red battery cable boots are in place.
Full service-parts list: Cummins/Onan C25 D6 →, Cummins/Onan C35 D6 →, Cummins/Onan C50 D6 →, Cummins/Onan C60 D6 →
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.