D6 Track-Type Tractor Machine Systems Caterpillar

Removal Procedure

Start By:

1. Remove the sweeps.

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Personal injury can result from contact with refrigerant. Contact with refrigerant can cause frost bite. Keep face and hands away to help prevent injury. Protective goggles must always be worn when refrigerant lines are opened, even if the gauges indicate the system is empty of refrigerant. Always use precaution when a fitting is removed. Slowly loosen the fitting. If the system is still under pressure, release it slowly in a well ventilated area. Personal injury or death can result from inhaling refrigerant through a lit cigarette. Inhaling air conditioner refrigerant gas through a lit cigarette or other smoking method or inhaling fumes released from a flame contacting air conditioner refrigerant gas, can cause bodily harm or death. Do not smoke when servicing air conditioners or wherever refrigerant gas may be present. Use a certified recovery and recycling cart to properly remove the refrigerant from the air conditioning system.

1. Recover the refrigerant. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems R-134a for all Caterpillar Machines" for the recovery and the charging procedure. Refer to Special Publication, "Dealer Service Tools Catalog", "Air Conditioning Tools" for the correct tools.
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   Illustration 1	g06346889

2. Loosen bolt (1).

3. Remove bolts (2) and bolts (3).

4. Remove plate (4).
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   Illustration 2	g06346900

5. Disconnect harness assembly (5).
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   Illustration 3	g06346913

6. Disconnect cable assembly (6).

7. Loosen bolts (8).

8. Remove antenna (7).

9. Repeat Steps 6 through 8 for the remaining antenna.
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   Illustration 4	g06346919

10. Remove bolts (9) and cover (10).
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    Illustration 5	g06346993

11. Cut cable strap (11) and position cable assembly (6) away from the air conditioner and heater components.

12. Disconnect hose assemblies (12) and (13).
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    Illustration 6	g06347019

13. Remove bolts (14).

14. Position harness assembly (15) inside the plate and remove plate (16).
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    Illustration 7	g06347022

15. Cut the cable straps from cable assembly (17).
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    Illustration 8	g06347182

16. Cut the cable strap from cable assembly (17) and position cable assembly (17) away from the air conditioner and heater components.

17. Disconnect harness assembly (18).
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    Illustration 9	g06347205

18. Remove bolts (19) and plate (20).
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    Illustration 10	g06347241

19. Remove bolts (21) and plate (22).
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    Illustration 11	g06347313

20. Remove nuts (23) and handhold (24).

21. Remove bolts (25) and the nuts.

22. Remove cover (26).
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    Illustration 12	g06347318

23. Remove bolts (27) and bolts (28).

24. Remove cover (29).
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    Illustration 13	g06347324

25. Turn valves (30) to the OFF position.

26. Loosen hose clamps (32) and disconnect hoses (33).

27. Remove bolt (31) and the clips.
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    Illustration 14	g06347334

28. Remove bolt (34), bolt (35), and the clips.
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    Illustration 15	g06347339

29. Disconnect hose (36).
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    Illustration 16	g06347374

30. Attach a suitable lifting device to air conditioner and heater components (37). The weight of air conditioner and heater components (37) is approximately 78 kg (170 lb).

31. Remove bolts (38).
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    Illustration 17	g06347382

32. Cut the cable straps and disconnect harness assembly (39), harness assembly (40), and harness assembly (41).
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    Illustration 18	g06347386

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    Illustration 19	g06347391

33. Remove bolt (42) and bolt (43).
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    Illustration 20	g06347654

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    Illustration 21	g06347759
    View from inside the cab.

34. Remove bolt (44) and bolt (45).
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    Illustration 22	g06347780

35. Remove air conditioner and heater components (37).

Installation Procedure

1. Install air conditioner and heater components (37) in the reverse order of removal.