C9 Urban Transit Bus Engine Water Temperature Regulator - Remove and Install Caterpillar


Water Temperature Regulator - Remove and Install
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C9 Urban Transit Bus Engine [RENR7559]
COOLING SYSTEM
LINES GP-WATER
C9 Urban Transit Bus Engine Water Temperature Regulator - Remove and Install
1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

------ WARNING! ------

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.



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.


  1. Drain the coolant from the cooling system into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Refill Capacities and Recommendations".


    Illustration 1g01137971

  2. Remove bolts (2). Remove housing assembly (1) and the gasket.

  3. Remove the water temperature regulators.

  4. Remove the lip seal.

Installation Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
221-8647  Seal Installer Gp 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 2g01137971

  1. Use Tooling (A) to install the lip seal.

  2. Install the water temperature regulators.

  3. Install the gasket and housing assembly (1).

  4. Install bolts (2).

  5. Fill the cooling system with coolant to the correct level. Refer to Operation and Maintenance Manual, "Refill Capacities and Recommendations".

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