John Deere 4045 / 6068 — Remove and Install Fuel Leak-Off Line

Repair & overhaul

For the John Deere 4045 / 6068, from the John Deere service manual.

Applies to: John Deere 4045, John Deere 6068

Procedure

1. Lower portions between rail and high pressure pump: remove leak off line portion concerned, check and replace parts as necessary.
2. Install parts then tighten tube nut until seated on fitting shoulder.
3. Upper portion between T-fitting (C) and injector (D): disconnect leak-off from T-fitting and injectors.
4. Remove the upper portion of leak-off line (E).
5. Install banjo fitting bolt (G) with new dual banjo sealing washers (F) at each injector port.
6. Tighten fuel leak-off banjo bolt to specification.
7. Install leak-off line in T-fitting connection (C) then tighten tube nut until seated.

Full service-parts list: John Deere 4045 →, John Deere 6068 →

Source: John Deere 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.

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