ABB HT574226 Operation Manual page 57

Operation Manual / 4 Product description / A100-M axial
4 Monitoring during operation
4.2.4 Replacing the speed sensor
Hot cable connector and hot speed sensor
Danger of burns. The cable connector and the speed sensor can reach tem-
peratures of more than 100 °C during operation.
WARNING
When disassembling the cable connector and speed sensor, wear safety

gloves.
Wear safety gloves to protect against thermal hazards.
Reduce the engine performance to idling and then stop the engine. Pay attention to post-

lubrication (Stopping the engine [➙ 35]).
Switch off the lubricating oil supply to the turbocharger.

Disconnect the cable connector from the speed sensor.

Screw out defective speed sensor.

Screw in new speed sensor to the stop.

Sealing the speed sensor
The speed sensor is designed with a sealing lip and does not require an ad-
ditional gasket when fitted.
NOTICE
Connect cable connector (86515) with the speed sensor (86505)

Switch on lubricating oil supply to the turbocharger.

4.2.5 Malfunction of the speed measurement system
The possible reasons for malfunction of the speed measuring system are described in chapter
Troubleshooting (A100 - List of possible diesel engine malfunctions).
© Copyright 2016 ABB. All rights reserved. HZTL4033_EN
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Revision A July 2016