797F Tier 4 Off-Highway Truck Engine Supplement Caterpillar


Nitrogen Oxide Sensor (Exhaust Inlet) - 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 1g06318149

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


    Illustration 2g06318181

  2. Remove cable straps (3).


    Illustration 3g06318199

  3. Disconnect harness connectors (4).


    Illustration 4g06318375

  4. 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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