Change the Coolant - 4-Cylinder Engines

TS281-UN-15APR13

CAUTION: Danger of injury from hot, pressurized coolant.

Touching hot surfaces of the cooling system, accessories, or hoses and leads can cause injury.

Avoid contact with hot surfaces or hot coolant.

Do not open cap (A) of expansion tank before coolant temperature is below boiling point. First unfasten the cap to relieve pressure, then remove cap completely.

NOTE: Comply with service interval instructions regarding engine coolant.

The FIRST service interval is 6 years or 6000 hours of operation, provided the cooling system has been improved exclusively with John Deere COOLGARD II and Premix and the coolant has been tested at the specified intervals. After initial service, the SCHEDULED interval (2 years or 2000 hours of operation) can be extended up to 6 years or 6000 hours of operation depending on coolant used and if coolant is tested at specified intervals. Comply with the recommended engine coolant service intervals in Diesel Engine Coolant in Section 80 of this manual.

1. Turn the heater control in the cab as far as it will go to the right.

2. First unfasten cap (A) and then take it off.

   
   LX314976-UN-31JUL17

   A - Expansion Tank Cap

   B - Max. Marking of the Expansion Tank

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3. Place a container under the drain to collect the coolant as it emerges. Open drain plug (C).

   
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4. After coolant has drained out, close drain plug (C) and tighten it to the specified torque.

   Item	Measurement	Specification
   Coolant - Drain Plug	Torque	4—5 N·m 3—3.7 lb-ft

   IMPORTANT: Never pour cold water or coolant into the hot engine. Always use warm water or wait until engine has cooled down.

5. Fill the system up to the max. mark (B) with clean water, and close cap (A).

   CAUTION: Before starting the engine, always close the hood.

6. Run the engine until it reaches operating temperature. Shut off engine and drain system.

7. Close drain plug again and fill the system with clear water.

8. Again run engine until it has reached operating temperature. Shut off engine and drain system again.

9. Close the drain plug (C) and fill the system up to the max. mark (B) with the prescribed coolant (see Section 80).

10. Start the engine and run it for 5 minutes.

11. Shut off the engine and add coolant up to the max. mark (B).

12. Start the engine and bring it up to operating temperature.

13. Shut off the engine and add coolant up to the max. mark (B).

14. Put cap (A) back on and close it.

15. For efficient cooling, the radiator screen must be kept clean. Remove any dirt or oil and carefully straighten any bent fins.