4-Wheel Drive (Optional)

Symptom Problem Solution

Combine Will Not Move When 4-Wheel Drive Is Engaged.

One or both rear wheels in spin-out condition.

Increase hydrostatic pump flow by moving hydrostatic control lever forward.

Bad electrical control switch on console.

Replace switch.

Bad solenoid valve on control valve.

See your John Deere dealer.

Spool will not work in control valve.

See your John Deere dealer.

Combine Will Not Move When 4-Wheel Drive Is Disengaged.

Faulty line or connection between main system and rear wheel drive control valve.

Repair or replace parts as needed.

4-Wheel Drive Will Not Disengage.

Bad electrical control switch on console.

Replace switch.

Bad solenoid valve on control valve.

See your John Deere dealer.

Spool will not work in control valve.

See your John Deere dealer.

Rear Wheels Do Not Stay In Straight Ahead Position During Transport Speeds.

Toe-in out of adjustment.

Adjust toe-in. See your John Deere dealer.

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