Draining, Flushing and Refilling Cooling System

IMPORTANT:

TS281-UN-15APR13

Safety—Explosive Release of Fluids

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Turn Key To Run

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Turn Temperature Knob To Highest Setting—ClimaTrak

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Turn Temperature Knob To Highest Setting—Standard HVAC

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Remove Deaeration Cap

A - Run

B - Temperature knob

C - Deaeration Cap

INITIAL change interval is 6 years or 6000 hours, provided cooling system is topped off using only John Deere Cool-GARD II and premix and coolant is tested at recommended intervals. After initial service, the SCHEDULED interval (2 years or 2000 hours) can be extended up to 6 years or 6000 hours depending on coolant used and if coolant is tested at recommended intervals. Follow recommendations in ”Drain Intervals for Diesel Engine Coolant” in Fuels, Lubricants and Coolant section of this manual.

NOTE: When service is performed on cooling system, make sure to check coolant daily for the next three days of operation. The most effective way to check coolant level is when the tractor is cool. If coolant is low, fill deaeration tank to mark on tank.

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

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

1. Park tractor, turn ignition key to off and allow radiator to cool.

   NOTE: Throughout the draining, flushing and filling procedure, turn temperature knob to highest setting and leave set to the highest setting to ensure that fluids are drained from heating/air conditioning unit. If either temperature knob is not set to highest setting or ignition key is not turned to Run, system will not completely drain.

   See your John Deere dealer for recommendations on cleaning solutions.

2. Turn key to Run (A), then turn temperature knob (B) to highest setting.

3. Open hood.

4. Remove deaeration tank cap (C).

5. Remove three cap screws (A), then remove deflector (B) beneath radiator drain valve.

   
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   Remove Cap Screws and Deflector

   
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   Open Radiator Drain Valve And Drain

   
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   Open Engine Drain Valve And Drain

   A - Cap Screws

   B - Deflector

   C - Radiator Drain Valve

   D - Engine Drain Valve

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6. Place catch pan under radiator drain valve.

7. Open radiator drain valve (C) and drain coolant into catch pan.

8. Place catch pan under engine drain valve.

9. Open engine drain valve (D) and drain coolant into catch pan.

10. Allow radiator and engine to drain.

    
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    Remove Side Panels

    
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    Remove Cap Screws

    
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    Remove Diverter

    A - Cap Screws

    B - Cap Screw

    C - Cap Screws

    D - Diverter

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11. Remove cap screws (A) and left front side panel (B).

12. Remove cap screws (C).

13. Remove diverter (D).

14. Loosen hose clamp (A) and slide hose (B) off of thermostat cover.

    
    TS281-UN-15APR13

    Safety—Explosive Release of Fluids

    
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    Loosen Hose Clamp And Slide Hose Off Thermostat Cover

    
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    Remove Thermostat

    A - Hose Clamp

    B - Hose

    C - Cap Screws

    D - Thermostat Cover

    E - Thermostat

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15. Remove three cap screws (C) and thermostat cover (D).

16. Remove old thermostat (E) and clean sealing area.

    NOTE: During draining, filling, and flushing, coolant system will not have thermostat installed.

17. Install new gasket, cover and csp screws. Tighten cap screws to specifications.

    Item	Measurement	Specification
    Thermostat Cover Cap Screws	Torque	48 N·m (35 lb-ft)

18. Replace previously removed radiator hose and clamp, diverter and side panel.

19. Close engine drain valve, and radiator drain valve.

20. Dispose of old coolant in accordance with local laws and ordinances.

    IMPORTANT: Never pour cold water or coolant into hot engine.

    NOTE: See your John Deere dealer for recommendations on cleaning solutions.

21. Fill high pressure coolant system at deaeration tank with cooling system cleaning solution.

22. Install deaeration cap and close hood.

    IMPORTANT: Make sure side panel is installed and hood is closed before starting engine.

23. Start engine and run at a minimum of 1500 rpm for 15 minutes.

24. Shut off engine and allow cleaning solution to cool.

25. Make sure temperature knob is turned to highest setting, then turn key to Run position.

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

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

26. Open hood, remove deaeration cap, put drain pans in place, then open radiator and engine drain valves.

27. Allow cooling system to completely drain.

28. Close engine drain valve, and radiator drain valve.

    IMPORTANT: Never pour cold water or coolant into hot engine.

    
    TS281-UN-15APR13

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29. Dispose of cleaning solution in accordance with local laws and ordinances.

30. Fill high pressure coolant system at deaeration tank with clean water.

31. Install deaeration cap and close hood.

32. Start engine and run at a minimum of 1500 rpm for 15 minutes.

33. Shut off engine and allow water to cool.

34. Make sure temperature knob is turned to highest setting, then turn key to Run position.

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

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

35. Open hood, remove deaeration cap, put drain pans in place, then open radiator and engine drain valves.

36. Allow radiator to drain, then remove left side panel and diverter.

37. Loosen hose clamp and slide hose back, remove three cap screws, thermostat cover, and gasket.

38. Inspect sealing area to ensure it is clean.

39. Apply light coat of RTV silicone sealant to new gasket.

40. Install new thermostat, new gasket, cover and cap screws. Tighten cap screws to specifications.

    Item	Measurement	Specification
    Thermostat Cover Cap Screws	Torque	48 N·m (35 lb-ft)

41. Replace previously removed hose, clamps, diverter and left front side panel.

42. Close engine drain valve and radiator drain valve.

43. Dispose of drained water in accordance with local laws and ordinances.

44. Fill high pressure coolant system at deaeration tank with new coolant solution.

    CAUTION: Make sure side panel is installed and hood is closed before starting engine.

45. Install deaeration cap, install front side panels, close hood, start engine and run at a minimum of 1500 rpm for 15 minutes.

    NOTE: Coolant may seep out of the deaeration tank overflow vent as air is purged from the coolant system.

    Coolant level may change when tractor is running or during the next few cycles.

    It is highly recommended the cooling system is checked for leaks after draining, flushing and refilling to ensure tractor performance. Consult your John Deere dealer for procedure and appropriate tools.

46. Monitor coolant level for next several hours/overnight. Refill deaeration tank as required.