C6.6 Engines for Caterpillar Built Machines Coolant Temperature Sensor - Remove and Install Caterpillar


Coolant Temperature Sensor - Remove and Install
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1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.



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.

Dispose of all fluids according to local regulations and mandates.


  1. Drain the coolant from the cooling system, to a level below the coolant temperature sensor, into a suitable container for storage or for disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change" for the correct draining procedure.


    Illustration 1g01341684

  2. Slide locking tab (1) into the unlocked position.

  3. Disconnect harness assembly (2) from coolant temperature sensor (3).

  4. Use a deep socket in order to remove coolant temperature sensor (3) from the cylinder head.

  5. Remove O-ring seal (4) from the coolant temperature sensor (3).

Installation Procedure


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 2g01341684

  1. Lubricate a new O-ring seal (4) with clean engine oil. Install the new O-ring seal onto coolant temperature sensor (3).

  2. Use a deep socket in order to install coolant temperature sensor (3) to the cylinder head. Tighten the coolant temperature sensor to a torque of 15 N·m (11 lb ft).

  3. Connect harness assembly (2) to coolant temperature sensor (3).

  4. Slide locking tab (1) into the locked position.

  5. Fill the cooling system to the correct level. Refer to Operation and Maintenance Manual, "Cooling System Coolant Level - Check" and refer to Operation and Maintenance Manual, "Cooling System Coolant - Test/Add" for the correct filling procedure.

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