D6R2 Track-Type Tractor Engine Supplement Caterpillar

Removal Procedure

Start By:

1. Remove the engine side guards.
2. Remove the hood.
3. Remove the bottom guard.
4. Remove the hydraulic oil cooler.

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At operating temperature, the engine coolant is hot and under pressure. Steam can cause personal injury. Check the coolant level only after the engine has been stopped and the fill cap is cool enough to touch with your bare hand. Remove the fill cap slowly to relieve pressure. Cooling system conditioner contains alkali. Avoid contact with the skin and eyes to prevent personal injury.

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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 attachments 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 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	g00853972

2. Loosen the clamps and disconnect hoses (1), (2), and (3). Remove fan guard (4) .

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Illustration 2	g00853973

3. Place the cardboard between fan spider (5) and radiator cores (6). Remove adapter (7) and fan spider (5) from the fan drive.

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Illustration 3	g00853974

4. Loosen the clamps and disconnect hoses (8), (9), and (10) .

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Illustration 4	g00853975

5. Disconnect hose assemblies (11) .

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Illustration 5	g03739062

6. Disconnect lift cylinders (12) .

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Illustration 6	g03739065

7. Install bolt (13) and a cable strap to secure lift cylinders (12) to the radiator guard.

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Illustration 7	g03739043

8. Remove bolts (17). Use two people to remove guard (16). The weight of guard (16) is approximately 32 kg (70 lb).

9. Remove bolts (15) and open door assembly (14) .

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Illustration 8	g03739071

10. Remove clip (19) and clamp (20). Disconnect hose assemblies (18) .

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Illustration 9	g03739078

11. Remove bolt (22) and disconnect harness assembly (21) .

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Illustration 10	g03739090

12. Disconnect hose assemblies (23) .

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Illustration 11	g03739123

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Illustration 12	g03739128

13. Remove bolt (24). Install Tooling (A) in place of bolt (24). Repeat for the opposite side.

14. Attach a suitable lifting device to radiator guard (25). The weight of radiator guard (25) is approximately 980 kg (2160 lb).

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Illustration 13	g03739154

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Illustration 14	g03739159

15. Remove retaining bolt (26) and pin (27). Repeat for the other side.

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Illustration 15	g03739160

16. Remove bolts (28) and pin (29). Repeat for the other side.

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Illustration 16	g03739128

17. Remove radiator guard (25) .

Installation Procedure

1. Install radiator guard (25) in the reverse order of removal.

   1. Tighten bolts (17) to a torque of 270 ± 40 N·m (200 ± 30 lb ft).

   2. Tighten bolts (15) to a torque of 105 ± 20 N·m (77 ± 15 lb ft).