John Deere 4045 / 6068 — Replacing Fuel Filter Elements (Diesel Fuel)
Maintenance · Fuel system
For the John Deere 4045 / 6068, from the John Deere operator's manual.
Applies to: John Deere 4045, John Deere 6068
Before you start
- Escaping fluid under pressure can penetrate the skin causing serious injury.
- Replace elements anytime audible alarm sounds and trouble codes indicate plugged fuel filters.
Procedure
- Close fuel shut-off valve, if equipped.
- Thoroughly clean fuel filter assemblies and surrounding areas.
- Disconnect water sensor wiring from primary fuel filter.
- Loosen drain plugs and drain fuel into a suitable container.
- Rotate retaining rings clockwise 1/4 turn and remove with filter elements.
- Remove water separator bowl with primary element; drain, clean and dry bowl.
- Install new filter elements, indexed and firmly seated on bases.
- Install retaining ring until it snaps into detent; reconnect sensor and bleed system.
Specs & values
- Replace fuel filter elements every 500 hours or 12 months, whichever occurs first
Full service-parts list: John Deere 4045 →, John Deere 6068 →
Source: John Deere 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.