D6R Track-Type Tractor 3306B Engine Supplement Caterpillar

Procedure to Tilt Forward

Start By:

1. Remove the front bottom guard. Refer to Disassembly and Assembly, "Bottom Guard - Remove" in the Service Manual for your machine.
2. Remove the hood. Refer to Disassembly and Assembly, "Hood - Remove and Install" in this module.

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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.

1. Remove the air conditioner condenser (if equipped). In order to remove the condenser coil, the refrigerant must be removed from the air conditioning system.

   Reference: Refer to Service Manual, SENR5664, "Air Conditioning & Heating Systems" for the correct procedures.

Note: If the bulldozer blade is installed on the machine, disconnect the bulldozer lift cylinders from the trunnions of the bulldozer blade. Make sure that the rods of the bulldozer lift cylinders are retracted before the radiator guard is tilted.

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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.

Note: Drain the coolant into a suitable container for storage or for disposal.

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Illustration 1	g00607547

2. Disconnect hoses (2) and (3) from tank (1) .

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Illustration 2	g00608214

3. Remove two bolts (4), the washers, and mounting bracket (5) of the condenser from each side of the radiator guard.

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Illustration 3	g00608216

4. Remove 13 bolts (6), the washers, and the two upper sections of fan guard (7) .

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Illustration 4	g00608219

5. Remove seven bolts (8) and the washers. Remove the two bottom sections of fan guard (7) .

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Illustration 5	g00607549

6. Remove two lower radiator hoses (10) .

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Illustration 6	g00607558

7. Attach tool (A) and a suitable lifting device to the radiator guard, as shown.

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Illustration 7	g00712756

8. Use tool (B) to remove two rear hinge pins (11) .

9. Tilt the radiator guard forward.

Procedure to Tilt Back

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Illustration 8	g00607558

1. Use tool (A) and a suitable lifting device to tilt the radiator guard into position, as shown.

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Illustration 9	g00607565

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Illustration 10	g00607562

2. Use tool (B) to install pin (11) through the main frame and the radiator guard. Repeat this step on the other side. Install the washer and bolt (12) on pin (11) on each side.

3. Remove tool (A) .

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Illustration 11	g00607549

4. Install two lower radiator hoses (10) .

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Illustration 12	g00608219

5. Install the two bottom sections of fan guard (7). Install seven bolts (8) and the washers.

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Illustration 13	g00608216

6. Install the two upper sections of fan guard (7), 13 bolts (6), and the washers.

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Illustration 14	g00608214

7. Install mounting bracket (5) of the condenser, two bolts (4), and the washers on each side of the radiator guard.

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Illustration 15	g00607547

8. Connect hoses (2) and (3) to tank (1) .

   Note: If the bulldozer is installed on the machine, connect the bulldozer lift cylinders to the trunnions of the bulldozer blade.

9. Fill the cooling system.

   Reference: Refer to Operation and Maintenance Manual, "Refill Capacities".

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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.

10. Install the air conditioner condenser and charge the air conditioning system with refrigerant (if equipped).

    Reference: Refer to Service Manual, SENR5664, "Air Conditioning & Heating Systems" for the correct procedures.

End By:

1. Install the front bottom guard. Refer to Disassembly and Assembly, "Bottom Guard - Install" in the Service Manual for your machine.
2. Install the hood. Refer to , "Hood - Remove and Install" in this module.