14L Motor Grader Nitrogen Oxide Sensor - Remove and Install - Outlet Caterpillar


Nitrogen Oxide Sensor - Remove and Install - Outlet
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1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
Loctite Nickel Anti-seize 

Start By:

  1. Remove hood enclosure.

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

Hot engine components can cause injury from burns. Before performing maintenance on the engine, allow the engine and the components to cool.




    Illustration 1g03502386

  1. Cut cable straps (1) and (2). Disconnect harness assemblies (3). Remove sensor (5). Remove nitrogen oxide sensor (4).

Installation Procedure

Note: New nitrogen oxide sensors are pre-lubricated. Do not use Tooling (A) on new nitrogen oxide sensors. When installing an existing nitrogen oxide sensor install Tooling (A) on the threads only.

Note: For more information about nitrogen oxide sensors, refer to Special Instruction, REHS8151, "NOx Sensors Handling and Installation Procedures".

  1. Install nitrogen oxide sensor (4) in the reverse order of removal.

    1. Tighten nitrogen oxide sensors (4) to a torque of 50 ± 10 N·m (37 ± 7 lb ft).

Information System:

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