C280-08 Tier 4 Engine Temperature Sensor (DEF Manifold) - Remove and Install Caterpillar

Temperature Sensor (DEF Manifold) - Remove and Install
1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number   Part Description  Qty 
207-1601  Rubber Lubricant 


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, NENG2500, "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. Turn off the diesel exhaust fluid supply to the dosing cabinet.

  2. Turn off the power supply to the dosing cabinet.

  3. Wait 30 seconds, then turn off the air supply to the dosing cabinet.

    Illustration 1g03498659

  4. Remove panel (1).

    Illustration 2g03506563

    Illustration 3g03506584

  5. Disconnect harness assembly (2). Remove sensor (3). Remove O-ring seal (4).

Installation Procedure

  1. Install sensor (3) in the reverse order of removal.

    1. Use Tooling (A) to lubricate O-ring seal (4).

    2. Tighten sensor (3) to a torque of 48 ± 5 N·m (35 ± 4 lb ft).