Operation Manual / TPL65-A10 / -A30
4 Operation / 4.4 Speed measurement
© Copyright 2020 . All rights reserved. HZTL2482_EN Rev.E March 2020
4.4.3 Replacing the speed sensor
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.
u Wear safety gloves when removing the cable connector and speed
sensor.
Wear safety gloves to protect against thermal hazards.
u Reduce engine performance to the idling speed, then stop the engine.
u Switch off the lubricating oil supply to the turbocharger.
u Disconnect the cable connector from the speed sensor.
u Screw out defective speed sensor.
u Screw in a new speed sensor up to the limit block.
u Observe the tightening torque (see the table of tightening torques in
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.
u Connect cable connector to speed sensor.
u Switch on lubricating oil supply to turbocharger.
4.4.4 Failure of speed measuring system
Possible reasons for failure of the speed measuring system are de-
scribed in the chapter Troubleshooting.
Page 43 / 117
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