C7.1 Industrial Engine Coolant Temperature Sensor - Remove and Install Caterpillar

Coolant Temperature Sensor - Remove and Install

C7.1 Industrial Engine [KENR9105]

1.1. Removal Procedure

2.1. Installation Procedure

Removal Procedure

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

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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.

Drain the coolant from the cooling system to a level below the coolant temperature sensor. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change" for the correct draining procedure.
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Illustration 1 g02315373
Slide locking tab (2) into the unlocked position. Disconnect harness assembly (3) from coolant temperature sensor (1).
Use a deep socket in order to remove coolant temperature sensor (1) from the cylinder head.
Remove O-ring seal (4) from coolant temperature sensor (1).

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

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Install a new O-ring seal (4) onto coolant temperature sensor (1).
Note: Do not lubricate the O-ring seal.
Use a deep socket in order to install coolant temperature sensor (1) to the cylinder head. Tighten the coolant temperature sensor to a torque of 20 N·m (177 lb in).
Connect harness assembly (3) to coolant temperature sensor (1). Slide locking tab (2) into the locked position.
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 procedures.