ABB HT608016 Operation Manual page 47

Operation Manual / A170-M.. - A175-M..
5 Monitoring during operation / 5.2 Turbocharger speed
5.2.4 Replacing the speed sensor
WARNING
Hot cable connector and hot speed sensor
Danger of burns. The cable connector and speed sensor can reach temperat-
ures in excess of 100 °C during operation.
When disassembling the cable connector and speed sensor, wear safety
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gloves.
Wear safety gloves to protect against thermal hazards.
Reduce the engine performance to idling and then stop the engine. Pay attention to post-
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lubrication (Stopping the engine
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 new speed sensor to the stop.
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The speed sensor is designed with a sealing lip and does not require any additional gasket
for assembly.
Connect cable connector (86515) with the speed sensor (86505)
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Switch on lubricating oil supply to the turbocharger.
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5.2.5 Malfunction of the speed measurement system
The possible reasons for malfunction of the speed measurement system are described in
chapter Troubleshooting (Reasons for malfunction of the speed sensor).
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HZTL4033_EN Rev.H July 2021