Servicing Cooling System

Checking Cooling System

1. Park machine safely. (See Parking Safely in the Safety Section.)

2. Allow engine to cool.

3. Raise hood.

4. NOTE: 2025R shown in procedures below. 2032R similar.

   
   LVAL38531-UN-20SEP12

   A - Recovery Tank

   B - Full Line

   C - Low Line

   D - Recovery Tank Cap

   Check recovery tank (A) coolant level:
   • If engine is warm, coolant level should be between the FULL line (B) and the LOW line (C).
   • If engine is cold, coolant level should be at the LOW line (C) on the recovery tank.
   
   

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5. Remove recovery tank cap (D) if needed to add coolant.

6. Add recommended coolant.

7. Install recovery tank cap.

8. Lower hood.

Draining Cooling System

1. Park machine safely. (See Parking Safely in the Safety Section.)

2. Allow engine to cool.

3. Raise hood.

4. 
   LVAL38532-UN-20SEP12

   A - Radiator Cap

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

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5. Close radiator cap tightly.

6. 
   LVAL38533-UN-20SEP12

   B - Radiator Petcock

   Open radiator petcock (B) at right side of engine and drain coolant.

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7. Remove engine block drain plug:

   
   LVAL38534-UN-20SEP12

   • 2025R - Remove engine block drain plug (C) on right side of engine and drain all coolant.

   
   LVAL38535-UN-20SEP12

   • 2032R - Remove engine block drain plug (D) on left side of engine and drain all coolant.

   C - 2025R - Drain Plug

   D - 2032R - Drain Plug

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

9. Close radiator petcock and install engine block drain plug.

10. Flush cooling system.

Flushing Cooling System

1. 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.

2. Install and tighten radiator cap.

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

4. Stop engine.

5. Open radiator petcock and remove engine block drain plug.

6. Drain cooling system immediately before rust and dirt settle.

7. Close radiator petcock and install engine block drain plug.

Filling Cooling System

IMPORTANT: 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.

1. Allow radiator to cool.

2. Fill cooling system.

3. Install and tighten radiator cap.

4. Run engine until it reaches operating temperature.

5. Stop engine.

6. Check recovery tank coolant level and add coolant if necessary

7. Lower hood.