Operation Manual / Power2 340-H / High-pressure stage
5 Monitoring during operation / 5.3 Speeds
© Copyright 2022 ABB. All rights reserved. HZTL4054_EN Rev.F March 2022
5.3.4 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. Observe post-lubrica-
tion time (see section Stopping the engine).
u Switch off the lubricating oil supply to the low or high-pressure stage.
u Disconnect the cable connector from the speed sensor.
u Unscrew the defective speed sensor.
u Screw in new speed sensor to the stop.
u For the tightening torque of the low-pressure stage speed sensor, see document
Operation Manual / Power2 … / Low-pressure stage / Disassembly and assembly / Table
of tightening torques.
u For the tightening torque of the high-pressure stage speed sensor, see document
Operation Manual / Power2 … / High-pressure stage / Disassembly and assembly / Table
of tightening torques.
The speed sensor supplied by Turbo Systems is equipped with a sealing lip and an O-ring. No
additional gasket is required during assembly.
u Connect the cable connector with the speed sensor.
u Switch on lubricating oil supply to the low-pressure or high-pressure stage.
5.3.5 Malfunction of the speed measurement system
The possible reasons for malfunction of the speed measuring system are described in
chapter Troubleshooting / Speed measurement system →68.
Page 49 / 114
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