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Operation Manual / A170-M.. - A175-M..
5 Monitoring during operation / 5.2 Turbocharger speed
© Copyright 2021 ABB. All rights reserved.
HZTL4033_EN
Rev.H
July 2021
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.
u
When disassembling the cable connector and speed sensor, wear safety
gloves.
Wear safety gloves to protect against thermal hazards.
u
Reduce the engine performance to idling and then stop the engine. Pay attention to post-
lubrication (
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 new speed sensor to the stop.
The speed sensor is designed with a sealing lip and does not require any additional gasket
for assembly.
u
Connect cable connector (86515) with the speed sensor (86505)
u
Switch on lubricating oil supply to the turbocharger.
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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