Flush Cooling System
For efficient operation, drain the old coolant, flush the entire system, and fill with clean coolant at least once every two years. Remove the protector by loosening the screws. Coolant Drain – Remove the radiator cap. Open the radiator drain plug and drain the coolant from the radiator. Drain the coolant from the engine block. The thermostat must be removed to ensure a complete wash. Remove the thermostat cover, remove the thermostat, and install the cover (no thermostat). Tighten cover screws to specification Thermostat cover screws Torque – 48 Nm (35 lb-ft).
Close all drain plugs and valves and fill the system with clean water. Run the engine for about 10 minutes to remove any possible rust or sediment. Stop the engine and drain the water from the system before rust and sediment settle. Flush the system with a radiator cleaner – Close all drain valves / plugs, reinstall the cold start aid switch, and fill the cooling system with a good commercial radiator cleaner and water. Follow the instructions provided with the cleaner. Stop the engine and drain the system immediately.
Flush System With Water – Close all drain valves / plugs, reinstall cold start aid switch, and fill with clean water to flush system. Run the engine for about 10 minutes and then drain the wash water. Remove the thermostat cap and clean the gasket material. Apply joint sealant to the new joint and install the thermostat and cover. Tighten the cover screws to specification. Fill with fresh coolant – Close all drain plugs / valves and fill with coolant. Check the coolant level – Fill the radiator to the top of the filler neck and fill the recovery tank to the LOW mark. Run the engine until it reaches operating temperature.
Let the engine cool down (preferably overnight) and recheck the coolant level. The coolant level with a cold engine should be at the LOW mark. An engine at operating temperature should have the coolant level at the FULL mark. When the refrigeration system is filled, it may take several run / cool periods to stabilize the level of refrigerant in the system. Add make-up coolant to the recovery tank as needed to bring the coolant level to the correct mark. Install the guard with screws.
John Deere 5050E Check Coolant Level
Service Interval – Daily / 10 hours. Turn off the motor. Remove the fill cap from the recovery tank only when it is cool enough to touch with your bare hands. Slowly loosen the cap to the first stop to relieve pressure before removing it completely. Never pour cold water into the cooling system of a hot engine, as it could crack the cylinder block or cylinder head. Do not run the engine without coolant even for a few minutes. Raise the hood. The coolant level should be checked when the engine is COLD. Check the coolant reservoir level BEFORE starting the tractor. If the engine is COLD and the level is below the MIN COLD mark, remove the cap and add coolant to the reservoir so that the level is between the MIN and MAX COLD marks. Install the plug and lower the hood.
Clean Grille, Screen Assembly, Intercooler, Fuel Cooler, Oil Cooler and Radiator
When dirt accumulates on the front grill, stop the engine and clean with a brush. Push the hood latch with the ignition key inside to unlock the hood. Raise the hood. The cylinders help to raise the hood and keep it in this position once it is raised. Remove the screen. Clean the intercooler, fuel cooler, oil cooler and radiator in the installed state.If further cleaning is required, clean the radiator from behind with compressed air or water.Straighten the bent fins.Clean the screen and install it.