Servicing Cooling System

Avoid damage! Follow all service procedures exactly. If not equipped to perform this work, see your John Deere dealer for service.

Prepare Vehicle

1. Park the machine safely. (See Parking Safely in the SAFETY section.)

2. Raise cargo box.

3. Open hood.

4. Remove the storage tub under the hood, if equipped.

5. When the coolant system service is completed:

   • Install the storage tub under the hood, if equipped.
   • Close hood.
   • Lower cargo box.
   
   

Draining Cooling System

1. Make sure that engine has cooled completely.

2. Avoid injury! The radiator is hot and can burn skin. Built-up pressure may cause an explosive release of coolant when the radiator cap is removed:

   • Shut off engine and allow to cool.
   • Do not remove the cap unless the radiator and the engine are cool enough to touch with bare hands.
   • To release all pressure, slowly loosen the cap to the first stop. Then remove the cap.
   
   

   
   MXT020129-UN-05MAY17

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

---




3. Remove cap after all pressure is released.

4. 
   MXT020138-UN-09MAY17

   Remove 13 screws (B) and closeout panel (C) from machine.

---




5. Place a coolant drain pan under area where closeout panel was removed.

6. 
   MXT020139-UN-09MAY17

   View from under right (passenger) side.

   Loosen hose clamps (D), and disconnect radiator hoses (E) from intermediate tubes.

---




7. Route radiator hoses over the drain pan and allow coolant to drain into the drain pan.

8. Raise the front of the machine to ensure complete drainage of coolant.

9. After all coolant has drained, lower front of machine and connect radiator hoses (E) and tighten hose clamps (D).

10. Models without HVAC have the recovery tank mounted on the right side of the radiator. Models with HVAC have the recovery tank mounted on the left side of the radiator.

    
    MXT020140-UN-09MAY17

    Components hidden for a better view.

    Remove overflow hose (F) from the recovery tank.

---




11. The recovery tank on machines with HVAC is held in place with one screw.

    Remove two screws (G) and lift recovery tank out of machine.

12. Remove cap (H) and empty recovery tank into the drain pan.

13. Check condition of all hoses. Replace as needed. Check all hose clamps and tighten as needed.

14. Install recovery tank and fasten with screws (G).

15. Avoid damage! Install overflow hose properly to ensure proper function of the cooling system. Position hose slightly above bottom of reservoir. Do not allow the hose to contact bottom of reservoir or bend upwards out of the coolant.

    Install overflow hose (F) and cap (H).

16. Install closeout panel with 13 screws.

17. Fill and bleed cooling system.

Draining Coolant from Heater Core (Machines with HVAC)

1. 
   MXT020793-UN-31AUG17

   Remove cap (A) on the bleed/fill fitting.

---




2. Place a coolant drain pan under the lower radiator hose on the left side of the machine.

3. 
   MXT020142-UN-09MAY17

   Loosen hose clamp (B) and disconnect the lower radiator hose (C).

---




4. Route radiator hose over the drain pan and allow coolant to drain into the pan.

5. Raise the right side of the machine to ensure complete drainage of coolant.

6. After all coolant has drained, lower right side of the machine.

7. Connect lower radiator hose (C) and tighten the clamp (B).

8. Install cap on the bleed/fill fitting.

Filling and Bleeding Cooling System

Avoid damage! Using incorrect coolant mixture can damage the radiator:

• Do not operate engine without coolant or with plain water.
• Do not exceed a 50% antifreeze mixture for the coolant.
• Use antifreeze approved for use in aluminum engines.
• Do not pour coolant or water into radiator when engine is hot.
• Do not add Stop Leak or other additives.

John Deere Cool-Gard™ coolant is recommended when adding coolant to the cooling system. Follow the directions on the container for the correct mixture ratio.

MXT010628-UN-23JUL14

1. Loosen bleed valve screw (A).

2. Remove radiator cap and add recommended coolant mixture to radiator until coolant runs out of the bleed port.

3. Tighten bleed valve screw.

4. Add additional coolant mixture to radiator until coolant runs out of the overflow port and into the recovery tank.

5. Install radiator cap.

6. Avoid damage! Position hose slightly above bottom of the recovery tank. Do not allow the hose to contact bottom of the recovery tank or bend upwards out of the coolant.

   Remove recovery tank cap and add coolant mixture to the recovery tank until it is approximately half full.

7. Install recovery tank cap.

8. Avoid damage! If coolant temperature indicator comes on while engine is running, stop engine and add more coolant mixture to radiator.

   Start and run engine at medium speed until upper and lower radiator hoses have become warm (10 - 15 minutes). Warm hoses indicate that the thermostat has opened and coolant is circulating.

9. Allow engine to cool.

10. Loosen bleed valve screw and allow air to bubble out until air bubbles are no longer visible at the bleed port. Tighten bleed valve screw completely.

11. Remove radiator cap and add recommended coolant mixture to radiator until coolant runs out of the overflow port and into the recovery tank.

12. Install radiator cap.

13. On models equipped with HVAC:

    1. Raise the left front of the machine.

    2. Remove cap from the filler port near the heater core.

    3. Add recommended coolant mixture until coolant appears at the base of the filler neck.

    4. Install cap on the filler port.

    5. Lower the machine.

14. Run engine until cooling fan starts, indicating the engine and coolant has reached operating temperature.

15. Stop engine and remove key.

16. Allow engine to cool and suction back any excess coolant from the recovery tank. Fill recovery tank to the lower line, if needed.

Flushing Cooling System

1. Drain cooling system.

2. Prepare a cooling system flushing solution using clean water and John Deere Cooling System Cleaner, John Deere Cooling System Quick Flush, or an equivalent.

3. Fill radiator completely with flushing solution. Install and tighten radiator cap.

4. Start and run engine until it reaches operating temperature.

5. Stop engine.

6. Avoid injury! The radiator is hot and can burn skin. Built-up pressure may cause an explosive release of coolant when the radiator cap is removed:

   • Shut off engine and allow to cool.
   • Do not remove the cap unless the radiator and the engine are cool enough to touch with bare hands.
   • To release all pressure, slowly loosen the cap to the first stop. Then remove the cap.
   
   

   To release system pressure, turn radiator cap slowly to the stop. Remove radiator cap.

7. Drain cooling system immediately into a container before rust and debris settle:

   • Disconnect radiator hoses from the engine.
   
   

8. After all solution has drained, connect radiator hoses.

9. Remove and clean recovery tank.

10. Install the recovery tank.

11. Fill cooling system with recommended coolant mixture.