Removal Procedure
- Open the left rear side panel. Drain coolant from the engine.
| 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. |
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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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- Loosen hose clamp (1) and muffler clamp (2). Remove bolts (3) .
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| Illustration 1 | g01079735 |
- Remove elbow (5) from muffler (4) .
- Loosen clamps (6). Remove bolts (7) and housing (8) .
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| Illustration 2 | g01079736 |
- Remove regulator (9) from housing (8) .
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| Illustration 3 | g01079737 |
- Remove seal (10) (not shown).
Installation Procedure
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 221-8647 | Seal Installer Gp | 1 |
- Use Tooling (A) in order to install seal (10) .
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| Illustration 4 | g01079751 |
- Install regulator (9) in housing (8) .
| | |
| Illustration 5 | g01079737 |
- Install housing (8) and bolts (7). Tighten clamps (6) .
| | |
| Illustration 6 | g01079736 |
- Install elbow (5) to muffler (4). Tighten hose clamp (1) and muffler clamp (2). Install bolts (3) .
| | |
| Illustration 7 | g01079735 |
- Fill the coolant level to the correct level. Refer to Operation and Maintenance Manual, "Refill Capacities".