Operating The Engine

Do not start engine with throttle pushed all the way forward.

Avoid excessive engine idling (more than 5 minutes). Prolonged idling may cause the engine coolant temperature to fall below its normal range. This prolonged idling causes crankcase oil dilution, due to incomplete fuel combustion, and permits formation of gummy deposits on valves, pistons, and piston rings. It also promotes rapid accumulation of engine sludge and unburned fuel in the exhaust system.

Operate engine between 1500—2100 rpm. Do not operate engine constantly below 1500 rpm during heavy draft usage or when tractor is under full PTO load.

To get maximum performance from your tractor:

• Ensure that tractor is correctly ballasted, see Ballasting section.
• For PST transmission, see Operating PowerShift Transmission.
• For IVT and AutoPowr, see Operating IVT and AutoPowr Transmission.

If engine stalls, start immediately to provide lubrication to critical engine parts.

Allow engine to idle for 20 seconds before turning ignition to Off position.

Contact your John Deere dealer if any symptoms that may be early signs of engine problems are detected such as:

• Sudden drop in oil pressure
• Abnormal coolant temperatures
• Unusual noise or vibration
• Sudden loss of power
• Excessive fuel consumption
• Excessive oil consumption
• Fluid leaks