MTU 20V4000C55, Operating Instructions Manual

Page: 165 / 226

Installing NOx sensor
Note: Note the following:
• If the sensor (3) was subjected to shock or impact load, it is considered to be defective and may not be
used.
• Always replace NOx sensor (3) together with control unit (1).
1. Install control unit (1) at the eyelets and tighten screws to the specified tightening torque.
Name Size Type Lubricant Value/Standard
Screw M6 Tightening torque max. 12 Nm
2. Remove protective cap on thread of sensor (3) only just before installation.
Note: Do not wipe off the thread lubricant applied by the manufacturer.
3. Coat sensor (3) thread with specified assembly compound as required.
4. Screw in sensor (3) by hand.
5. Tighten nut (3) to specified torque using a torque wrench.
Name Size Type Lubricant Value/Standard
Nut M20 Tightening torque (Assembly compound
(Molykote P 37)) 40 Nm +4 Nm
6. Fit male connector (2) and latch it.
MS15043/00E 2016-04 | Accessories for (Electronic) Engine Governor / Control System | 165
TIM-ID: 0000025205 - 016