104 Maintenance Section Cooling System Water Temperature Regulator - Replace i01562542 Cooling System Water Temperature Regulator - Replace Replace the water temperature regulator and the seals while the cooling system is completely drained or while the coolant is drained to a level that is below the water temperature regulator housing. Note: If you are only replacing the water temperature regulator, drain the coolant to a level that is below the water temperature regulator housing. SMCS Code: 1355-510; 1393-010 Reference: Refer to the Disassembly and Assembly Manual for the correct procedure for replacing the water temperature regulator. Pressurized system:
Hot coolant can cause seri- ous burn. To open cap, stop engine, wait until ra- diator is cool. Then loosen cap slowly to relieve the pressure. i01564685 Differential and Final Drive Oil - Change NOTICE Failure to replace the engine’s thermostat on a regu- larly scheduled basis could cause severe engine dam- age. SMCS Code: 3278-044; 4011-044 NOTICE Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, test- ing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before open- ing any compartment or disassembling any compo- nent containing fluids.
NOTICE Caterpillar engines incorporate a shunt design cooling system and require operating the engine with a ther- mostat installed. If the thermostat is installed wrong, it will cause the engine to overheat. Inspect gaskets before assembly and replace if worn or damaged. 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. g00811615 Illustration 153 Replace the water temperature regulator in order to reduce the chance of problems with the cooling system. g00287529 Illustration 154 Typical Example Front Axle