980H Wheel Loader Machine Systems Caterpillar

Removal Procedure

Show/hide table

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.

Show/hide table

Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.

1. Refer to Service Manual, SENR5664, "All Products Air Conditioning and Heating Systems for All Caterpillar Machines" for the correct charging and recovery procedure. Refer to Special Publication, NENG2500, "Air Conditioning Tools" for the tools.

2. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedures.
   Show/hide table

   Illustration 1	g03438276

3. Open door (1).
   Show/hide table

   Illustration 2	g03438299

4. Remove panel (2).
   Show/hide table

   Illustration 3	g03438303

5. Remove clips (3) that secures harness assembly (5) to the back of cab (6). Disconnect harness assemblies (5). Disconnect harness assembly (4), if equipped.
   Show/hide table

   Illustration 4	g03438320

6. Disconnect hoses (7). Disconnect hose assemblies (8). Remove all clips (9) that secure hose (10) to the back of cab (6).
   Show/hide table

   Illustration 5	g03438377

7. Disconnect hose (10).
   Show/hide table

   Illustration 6	g03438638

   Show/hide table

   Illustration 7	g03438580

8. Attach a suitable lifting device to hand rail (11). The combined weight of hand rail (11) and platform (13) is approximately 34 kg (75 lb).

9. Remove bolts (12), bolts (14), and bolts (15). Use the suitable lifting device in order to remove platform (13).
   Show/hide table

   Illustration 8	g03438662

10. Disconnect hoses (16).
    Show/hide table

    Illustration 9	g03438708

11. Remove pin (19). Loosen nut (17) and place cable assembly (18) out of the way.
    Show/hide table

    Illustration 10	g03438737

12. Remove cab shroud (20).
    Show/hide table

    Illustration 11	g03438818

13. Remove the bolts in order to disconnect bracket (21) from the front of cab (6).
    Show/hide table

    Illustration 12	g03438821

14. Disconnect all hose assemblies (23) that are connected to brake control valve (22).
    Show/hide table

    Illustration 13	g03438839

15. Remove the nuts, the washers, and bolts (25) in order to disconnect steering shaft (24). Set steering shaft (24) to the side.
    Show/hide table

    Illustration 14	g03442878
    Rear left side of cab.

16. Disconnect ground strap (26) that is located under the cab.
    Show/hide table

    Illustration 15	g03443318

17. Remove hose (27).
    Show/hide table

    Illustration 16	g03443636

18. Remove the bolts and attach Tooling (A), along with a suitable lifting device, to cab (6). The weight of cab (6) is approximately 1406 kg (3100 lb).
    Show/hide table

    Illustration 17	g03444177
    Front mounting bolts

    Show/hide table

    Illustration 18	g03444178
    Rear mounting bolts

19. Remove mounting bolts (28) and mounting bolts (29).
    Show/hide table

    Illustration 19	g03443636

20. Use Tooling (A) and the suitable lifting device in order to remove cab (6).

Installation Procedure

1. Install cab (6) in the reverse order of removal.

   1. Tighten mounting bolts (28) and mounting bolts (29) to a torque of 850 ± 100 N·m (627 ± 74 lb ft).