320D3 Hydraulic Excavator Engine Supplements Caterpillar

Removal Procedure

Start By:

1. Remove the fan.

2. Remove the refrigerant condenser and mounting.

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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.

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Personal injury can result from hot coolant, steam and alkali. At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns. Remove cooling system pressure cap slowly to relieve pressure only when engine is stopped and cooling system pressure cap is cool enough to touch with your bare hand. Do not attempt to tighten hose connections when the coolant is hot, the hose can come off causing burns. Cooling System Coolant Additive contains alkali. Avoid contact with skin and eyes.

1. Drain the hydraulic oil into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change" for the correct draining and filling procedures.

2. Drain the coolant into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedures.
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   Illustration 1	g06307179

3. Disconnect hose (1).

4. Remove bolts (3) and reserve tank assembly (2).
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   Illustration 2	g06307180

5. Remove bolts (5) and support assembly (4).
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   Illustration 3	g06307181

6. Attach a suitable lifting device to remove door (6). The weight of door (6) is approximately 20 kg (44 lb).

7. Remove bolts (7) and door (6).
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   Illustration 4	g06307183

8. Remove bolts (9) and cover (8).
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   Illustration 5	g06307184

9. Loosen the clamps and disconnect hose (10).

10. Loosen the clamps and disconnect hose (11).
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    Illustration 6	g06307185

11. Loosen the clamps and disconnect hose (12).
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    Illustration 7	g06307187

12. Attach a suitable lifting device to remove cooling system package (13). The weight of cooling system package (13) is approximately 125 kg (276 lb).
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    Illustration 8	g06307188

13. Remove two bolts (14), two bolts (16), and bracket (15).
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    Illustration 9	g06307189

14. Remove bolts (18) and cover (17).
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    Illustration 10	g06307190

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    Illustration 11	g06307191

15. Remove bolts (19).
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    Illustration 12	g06307209

16. Remove bolts (20).
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    Illustration 13	g06307192

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    Illustration 14	g06307193

17. Remove bolts (21) and cooling system package (13).

Installation Procedure

1. Install cooling system package (13) in the reverse order of removal.