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Operation Manual / TPL65-A32 / -A33 / -A36 + TPL69-A32 / -A33
4 Operation / 4.4 Speed measurement
4.4.3 Replacing the speed sensor
4.4.4 Failure of speed measuring system
© Copyright 2020 . All rights reserved.
WARNING
Hot cable connector and hot speed sensor
Risk of burning. During operation, the cable connector and the speed
sensor can reach temperatures exceeding 100 °C.
Wear safety gloves when removing the cable connector and speed
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sensor.
Wear safety gloves to protect against thermal hazards.
Reduce engine performance to the idling speed, then stop the engine.
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Switch off the lubricating oil supply to the turbocharger.
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Disconnect the cable connector from the speed sensor.
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Screw out defective speed sensor.
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Screw in a new speed sensor to the stop.
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Observe the tightening torque (see the table of tightening torques in
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the chapter entitled Disassembly and assembly).
NOTICE
Sealing of the speed sensor
The speed sensor is designed with a sealing lip and does not require
any additional gasket for assembly.
Connect cable connector to speed sensor.
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Switch on lubricating oil supply to turbocharger.
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Possible reasons for failure of the speed measuring system are de-
scribed in the chapter Troubleshooting.
HZTL2498_EN
Rev.E
March 2020
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