Disassembly Procedure
Start By:
- Remove the heat exchanger. Refer to Disassembly and Assembly, "Heat Exchanger - Remove".
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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. |
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| NOTICE |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
| NOTICE |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
- Remove six bolts (1) and the washers that fasten bonnet (2) on the heat exchanger.
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| Illustration 1 | g00651490 |
- Remove bonnet (2) from the heat exchanger.
- Remove zinc rods (3). Inspect the condition of the zinc rods. Replace the zinc rods, if necessary.
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| Illustration 2 | g00651501 |
- Remove O-ring seal (4). Inspect the O-ring seal for wear or damage. If the O-ring seal is worn or damaged, use a new part for replacement.
- Remove tube bundle (5) from the heat exchanger.
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| Illustration 3 | g00651507 |
- Remove O-ring seal (6). Inspect the O-ring seal for wear or damage. If the O-ring seal is worn or damaged, use a new part for replacement.
- Remove six bolts (7) and the washers that fasten bonnet (8) to the heat exchanger.
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| Illustration 4 | g00651532 |
- Remove bonnet (8) from the heat exchanger.
- Remove O-ring seals (9) and (10). Inspect the O-ring seals for wear or damage. If the O-ring seals are worn or damaged, use new parts for replacement.
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| Illustration 5 | g00651536 |
- Remove zinc rod (11). Inspect the condition of the zinc rod. Replace the zinc rod, if necessary.