John Deere 5050D Cooling System

John Deere 5050D Cooling System Problems

Check Coolant Level

Check the coolant level when the engine is cold. Clean the radiator in most dusty conditions. Lack of cleaning causes improper flow of the coolants through the radiator, which leads to an increase in the temperature of the coolants. Check the coolant level in the coolant recovery tank. The coolant level should reach the cold mark. If it is below the cold mark, add coolant only up to that mark.

Flush Cooling System

For effective operation, drain the old coolant, flush the entire system, and refill with a clean antifreeze solution at least once every 2 years. Coolant Drain – Remove the radiator cap. Open the radiator drain plug and connect a drain hose. Take the hose to a container and drain the coolant from the radiator. Drain the coolant from the engine block by removing the cap. The thermostat must be removed to ensure a complete wash. Remove the thermostat cover, remove the thermostat, and install the cover (no thermostat). Tighten the cover screws to specification. Thermostat cover screws Tightening torque – 47 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 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 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 a mixture of antifreeze, soft water and coolant conditioner.

Check the coolant level – Fill the radiator to the top of the filler neck. 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 bottom of the filler neck. When filling the refrigeration system, several operating / cooling periods are required to stabilize the level of refrigerant in the system. Add make-up coolant to the radiator as needed and bring the coolant level to the correct level.

Clean Grille, Screens, and Radiator

Whenever debris accumulates on the front grill, stop the engine and clean with a brush. Clean the radiator in most dusty conditions. Lack of cleanliness leads to improper flow of coolants through the radiator, which leads to an increase in the temperature of the coolants. After cleaning is complete, make sure the hood is securely closed and keep the hood lock key with the operator only. Raise the hood and check for debris on the radiator. If so, remove it with a brush or compressed air. If a more thorough cleaning is necessary, clean the radiator from behind with compressed air or water. Straighten the bent fins.

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