C27 and C32 Industrial Engines Caterpillar

Removal Procedure

1. Drain the coolant from the cooling system to a level below the coolant temperature sensor into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change" for the correct draining and filling procedures.
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   Illustration 1	g02252733

2. Disconnect hose assemblies (1) and (2).

3. Remove bolts (4) and position manifold (3) out of the way.

4. Remove bolts (5) and remove bracket (6).
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   Illustration 2	g02257094

5. Disconnect harness assembly (7) and remove coolant temperature sensor (8).

Installation Procedure

1. Install coolant temperature sensor (8) in reverse order of removal.

2. Install a new O-ring seal on coolant temperature sensor (8).

   1. Install coolant temperature sensor (8) and tighten to a torque of 20 ± 3 N·m (177 ± 27 lb in).