966G Series II Wheel Loader and 972G Series II Wheel Loader Machine Systems Caterpillar

Installation Procedure

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Illustration 1	g00840901

1. Install the heater coil.

2. Install foam insert (16) to fittings (17).
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   Illustration 2	g00840881

3. Install evaporator coil (15).
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   Illustration 3	g00830370

4. Connect the housing assembly.
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   Illustration 4	g00840879

5. Install eight screws (14) which hold the housing assembly together.
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   Illustration 5	g00840877

6. Install cover (13). Install two bolts (12) and the washers.
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   Illustration 6	g00840873

7. Connect electrical connectors (11).
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   Illustration 7	g00840871

8. Connect electrical connectors (10). Install wire ties which hold the wire assembly in place, as required.
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   Illustration 8	g00840861

9. Carefully install the heater coil and the evaporator coil assembly (9) in the cab. Install bolt (8) and the washer.
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   Illustration 9	g00830339

10. Install two bolts (7) and the washers.
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    Illustration 10	g00830338

11. Install filter (6) from the outside of the cab.
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    Illustration 11	g00830337

12. Close access door (5).
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    Illustration 12	g00830322

13. Connect two air conditioner lines (4).

14. Install bolt (3) and the clip which holds the air conditioner lines in place.
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    Illustration 13	g00830318

15. Connect two heater lines (2).
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    Illustration 14	g00830315

16. Connect electrical connector (1).

17. Evacuate the air conditioner system. Charge the air conditioner system. The correct charge is 2.5 kg (5.5 lb). Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" for the correct procedure. Refer to Special Publication, NEDG5065, "Air Conditioning Tools" for the correct tools.

18. Close the engine hood.

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1. Install the fan motor for the heater and air conditioner. Refer to Disassembly and Assembly, "Fan Motor (Air Conditioner and Heater) - Install".