797F Tier 4 Off-Highway Truck Engine Supplement Caterpillar


Nitrogen Oxide Sensor (Exhaust Outlet) - Remove and Install

Usage:

797F LTZ

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
468-8116  Socket 

Note: Refer to Special Instruction, REHS8151, "NOx Sensors Handling and Installation Procedures" for additional information when removing and installing nitrogen oxide sensors.



    Illustration 1g06317703

  1. Remove bolts (1) and cover (2).


    Illustration 2g06317795

  2. Disconnect harness assemblies (7). Remove clamps (3) and cable straps (4).

  3. Remove bolts (5). Use Tooling (A) to remove nitrogen oxide sensors (6).

Installation Procedure

  1. Install nitrogen oxide sensors (6) in the reverse order of removal.

    1. Tighten nitrogen oxide sensors (6) to a torque of 50 ± 10 N·m (37 ± 7 lb ft).

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