PLATE 2H5035 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 554-5055 Socket 1 Note: Refer to Special Instruction, REHS8151, "NOx Sensors Handling and Installation Procedures" for additional information when removing and installing nitrogen oxide sensors.
Illustration 1 g06115754
Remove bolts (1) and cover (2).Note: The nitrogen oxide sensor box is located in the horn well.
Illustration 2 g06090726
Remove bolts (3). Disconnect harness assembly (4) from the nitrogen oxide sensor control unit.
Illustration 3 g06115777
Remove cable straps (5) that secure the harness assembly.
Illustration 4 g06115784
Remove bolts (6) that secure duct cover (7).
Illustration 5 g06115769
Remove cable strap (8).
Illustration 6 g06115812
Use Tooling (A) to remove nitrogen oxide sensor (9).Installation Procedure
Illustration 7 g06115863
Keep protective covering (10) on nitrogen oxide sensor (9).
Illustration 8 g06116523
Route nitrogen oxide sensor (9) through the horn ducting.
Illustration 9 g06115812
Use Tooling (A) to install nitrogen oxide sensor (9).Tighten nitrogen oxide sensor (9) to a torque of 50 10 N m (37 7 lb ft).Note: Ensure that there is a 180 degree relief loop in the nitrogen oxide sensor harness prior to securing the harness.
Illustration 10 g06115769
Secure the harness assemblies with cable strap (8).
Illustration 11 g06115777
Secure the nitrogen oxide sensor harness to the side of the horn well with cable straps (5).
Illustration 12 g06090726
Secure the nitrogen oxide sensor control unit with bolts (3). Connect harness assembly (4) to the nitrogen oxide sensor control unit.
Secure the excess harness inside the electrical box with the nitrogen oxide sensor control unit.
Illustration 13 g06115754
Install cover (2) and bolts (1) .