| NOTICE |
|---|
|
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, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates. |
 |
|
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 filler cap slowly to relieve pressure only when engine is stopped and radiator cap is cool enough to touch with your bare hand. Cooling System Conditioner contains alkali. Avoid contact with skin and eyes. |
Note: There are two water temperature regulators. One water temperature regulator is located in each of the cylinder heads.
- Open the protection cap assembly in order to release the pressure in the cooling system. Drain the coolant to the level of the water temperature regulators. Use a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, SEBU7092, "Cooling System Coolant (ELC) - Change".
Show/hide table
Illustration 1 g00482361 Note: Steps 2 through 6 are for the removal of the water temperature regulator from the left side of the engine.
- Remove the two bolts from outlet elbow (2).
- Remove outlet elbow (2) and the gasket from regulator cover assembly (3) and tube (4).
- Loosen the clamps on hump hose (1) and move the hump hose upward on the inlet tube assembly.
- Remove the two tie straps and position the wire harness out of the way of regulator cover assembly (3).
- Remove the three bolts, regulator cover assembly (3), the regulator cover gasket and the water temperature regulator.
Show/hide table
Illustration 2 g00482382 Note: Steps 7 through 10 are for the removal of the water temperature regulator from the right side of the engine.
- Remove the two bolts and the washer from outlet elbow (6).
- Remove outlet elbow (6) and the gasket from the regulator cover assembly.
- Loosen the clamps on hump hose (5) and move the hump hose upward on the inlet tube assembly.
- Remove the three bolts, regulator cover assembly (7), the regulator cover gasket and the water temperature regulator.
Show/hide table
Illustration 3 g00482383 - Remove water temperature regulator (8) from each regulator cover assembly.
Note: For specifications on the water temperature regulator, refer to Specifications, SENR1017, "Water Temperature Regulator".
Show/hide table
Illustration 4 g00490000 - Remove lip seal (10) from each regulator cover assembly.
Note: Be sure that ferrule (9) in each regulator cover assembly is not plugged or restricted.