Draining and Flushing Cooling System

1. Park machine safely.

2. CAUTION: Explosive release of fluids from pressurized cooling system can cause serious burns.

   Shut off engine. Only remove filler cap when cool enough to touch with bare hands. Slowly loosen cap to first stop to relieve pressure before removing completely.

   Allow engine to cool.

3. Raise hood.

4. 
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   A - Radiator Cap

   B - Radiator Drain Plug

   C - Oil Cooler Hose

   Slowly open radiator cap (A) to the first stop to release all pressure.

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5. Close radiator cap tightly.

6. Position drain pan under radiator drain plug (B) and drain coolant from the system.

   • Position drain pan under hose, remove hose (C) and allow all coolant to drain.
   
   

7. When coolant drains from the recovery tank, remove the radiator cap.

8. Close drain plug and install radiator hose, if removed.

9. Fill the cooling system with clean water. Run engine until water passes through the thermostat to stir up possible rust or sediment.

10. Stop engine immediately and drain water from system before rust and sediment settles.

11. Fill cooling system with clean water and John Deere Cooling System Cleaner, or John Deere Cooling System Quick Flush or an equivalent. Follow directions on the container.

12. After cleaning the system, drain cleaner and fill the system with clean water to flush the system.

13. Start and run engine until water passes through the thermostat.

14. Stop engine, and drain flushing water from the system.

15. IMPORTANT: Avoid damage! Using incorrect coolant mixture can damage the radiator:

    • Do not operate engine with plain water.
    • Do not exceed a 50% mixture of coolant and water.
    • Aluminum engine blocks and radiators require approved ethylene-glycol based antifreeze.
    
    

    NOTE: John Deere COOL-GARD™ coolant is recommended when adding new coolant to the cooling system.

    Follow the directions on the container for correct mixture ratio.

    Close all drain orifices and fill cooling system to specification.