Nox Sensor - Replacement - MTU 16V4000M73 Operating Instructions Manual

8.13.13 NOx sensor – Replacement
Preconditions
☑ Engine was stopped with key switch.
☑ SCR system switched off after completion of aftercooling phase.
Special tools, Material, Spare parts
Designation / Use
Torque wrench, 10–60 Nm
Assembly compound (Molykote P 37)
NOx sensor
WARNING
Hot components/surfaces.
Risk of burns!
• Allow the engine to cool down to below 50 °C before beginning work.
• Wear suitable protective equipment/thermal gloves.
• Avoid unprotected contact with hot surfaces.
NOTICE
High voltage.
Risk of damage to components!
• Switch off ignition before replacing components.
NOTICE
Ceramic cell breakage due to shock or impact.
Risk of damage to components!
• Avoid shocks and impacts.
• Exercise extreme care when handling sensors.
Preparatory steps
1. Remove screws (1) and open clamps (3).
2. Remove metal plate segment (2).
Note: Insulating molding (4) is split in two and
serves as a seal.
3. Remove front insulating molding (4).
MS150123/01E 2017-05 | Exhaust Gas Aftertreatment | 199
Part No.
F30452769
50564
(→ Spare Parts Catalog)
Qty.
1
1
3