JD 4840 Tractor Problem – Diesel Cranks But Will Not Start

4840 3 Problems

4840 Tractor problem. Diesel starts but won’t start. Please help me find the root cause of the problem. What I can do?

Engine valves are out of adjustment. Contact an authorized service center. Cold start system used incorrectly. Defect or failure of the piston rings. Defective fuel pump drive shaft. Water, dirt, or air in the fuel system. Drain, rinse, fill and purge the system. Crankcase oil too heavy. Use oil of the correct viscosity.

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