986K Wheel Loader Machine Systems Caterpillar

Removal Procedure

1. Recover the refrigerant. Refer to Service Manual, SENR5664, "All Products Air Conditioning and Heating R134a for All Caterpillar Machines" for the recovering and the charging procedures. Refer to Special Publication, NENG2500, "Air Conditioning Tools" for the correct tools.

2. Drain the coolant. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedures.
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   Illustration 1	g06289465

3. Remove cover (1).
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   Illustration 2	g06293649

4. Disconnect harness assemblies (2). Disconnect harness assembly (3) and cable assembly (4). Remove bolt (5).
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   Illustration 3	g06289956

5. Remove access door (6).
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6. Remove all bolts (8) and the brackets that secure bracket assembly (7) to the machine. Use two people to remove bracket assembly (7). The weight of bracket assembly (7) is approximately 30 kg (66 lb).
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   Illustration 5	g06293653

7. Turn fuel valves (9) to the OFF position.
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8. Disconnect hose assemblies (10). Loosen the clamps and disconnect hoses (11).
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   Illustration 7	g06290081

9. Disconnect ground strap (12) from under the rear side of the cab.
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   Illustration 8	g06290373

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   Illustration 9	g06290375

10. Remove nuts (14). Position brake control valve (13) out of the way.
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    Illustration 10	g06290405

11. Disconnect hose assemblies (15).
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    Illustration 11	g06290487

12. Attach Tooling (A) and a suitable lifting device to cab (16). The weight of cab (16) is approximately 1597 kg (3520 lb).
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    Illustration 12	g06290519

13. Remove bolt (19), the small washer, large washer (18), and rubber (17) from the front, right side cab mount. Repeat for opposite side.
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    Illustration 13	g06290549

14. Remove the bolts and use two people to remove bracket assembly (20). The weight of bracket assembly (20) is approximately 27 kg (60 lb).
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    Illustration 14	g06291354

15. Remove bolt (23), the washer, large washer (22), and rubber (21).

16. Repeat Step 14 and Step 15 for the other side of the machine.
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    Illustration 15	g06290487

17. Use Tooling (A) and a suitable lifting device to remove cab (16).

Installation Procedure

1. Install cab (16) in the reverse order of removal.

   1. Tighten the bolts for harness assemblies (2) to a torque of 6 ± 1 N·m (53 ± 9 lb in).