Maintenance9223−1/A1 RT-flex50-D
Wärtsilä Switzerland Ltd
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9.3 Checking the shaft eccentricity
The following chekcs and the replacement of CAS parts can only be carried out if
the engine is at standstill.
Ckeck the shaft eccentricity in case of CAS exchange.
It is essential to perform the eccentricity check according to the Maintenance
Schedule 0380-1.
9.4 Eccentricity check
⇒ Remove the protection hood 1 of the CAS drive (see Fig.’B’).
⇒ Install the magnetic base with dial gauge ’MB’.
MB9
18
D
1
Remark! The measuring point must be horizontally adjacent of the gear wheel 18.
⇒ Read the deviation on the dial gauge while turning the crankshaft with the
turning gear.
The average shaft eccentricity under normal working and assembly condition
must be less than 0.15 mm.
In case the measured value is out of the stated average eccentricity value, it is rec-
ommended to replace the CAS with a new one (see sections 5 and 7). A CAS drive
is available as a standard spare part.
2012
rank Angle Sensor Unit: Dismantling, Assembling and Adjusting
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