D8T Track-Type Tractor Machine Systems Caterpillar

Removal Procedure

Start By:

1. Remove the cab.

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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. Drain the hydraulic oil. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change" for the correct draining and filling procedures.
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   Illustration 1	g06309133

2. Attach Tooling (A) and a suitable lifting device to guard (1). The weight of guard (1) is approximately 45 kg (100 lb).

3. Remove bolts (2) and guard (1).
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   Illustration 2	g06309152

4. Open doors (3).
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   Illustration 3	g06309155

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   Illustration 4	g06309157

5. Remove bolts (4), bolts (5), and cover assembly (6).
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   Illustration 5	g06309164

6. Disconnect harness assembly (7).

7. Disconnect hose assemblies (8).
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   Illustration 6	g06309167

8. Disconnect tube assemblies (9).
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   Illustration 7	g06309172

9. Attach Tooling (B) and a suitable lifting device to filter base assemblies (11). The weight of filter base assemblies (11) is approximately 61 kg (135 lb).

10. Remove bolts (10) and filter base assemblies (11).
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    Illustration 8	g06309173

11. Remove bolts (12) and filler tube assembly (13).
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    Illustration 9	g06309177

12. Cut cable straps (14).

13. Disconnect harness assembly (15) and position harness assembly (15) out of the way.

14. Disconnect hose assembly (16) and position hose assembly (16) out of the way.
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    Illustration 10	g06309180

15. Disconnect hose assemblies (17).
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    Illustration 11	g06309182

16. Remove bolts (18) and hydraulic accumulator (19).
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    Illustration 12	g06309184

17. Attach a suitable lifting device to hydraulic tank (20). The weight of hydraulic tank (20) is approximately 136 kg (300 lb).
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    Illustration 13	g06309188

18. Remove bolts (21) and hydraulic tank (20).

Installation Procedure

1. Install hydraulic tank assembly (20) in the reverse order of removal.