Cummins/Onan — Connecting Battery Cables
Installation
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan MDDC, John Deere 4045TFM engine, John Deere 6068TFM engine
Before you start
- Sparks can ignite fuel leading to severe personal injury or death. Do not run battery cables and fuel lines together.
Procedure
- Bolt the cables to the engine starter solenoid and engine block using an insulated wrench.
- Provide an insulating boot for the positive (+) terminal to protect against accidental contact.
- Route battery cables through holes in the sides and bottom of the base.
- Use the rubber grommets provided to protect the cables from chaffing and seal noise.
- Make sure all unused hose and cable entrance/exit holes around the base are capped or sealed.
Tools required
- Insulated wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- See specifications table for maximum permissible starting current resistance.
Full service-parts list: Cummins/Onan MDDC →, John Deere 4045TFM engine →
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.