MVA 02 rev 5 - December 2017
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For Type ST…B… supports, extract the shaft only
partially, resting it in an intermediate position (Photo
50).
Photo 50
5.- With the shaft still partially inside the support,
remove the spring locking ring located in the
support from the impeller side, using suitable pliers
(Photo 51).
Photo 51
6.- Completely extract the shaft. When this is done,
the ball bearing on the impeller side, the spring
locking ring that secures the ball bearing to the
shaft, the internal roller bearing ring on the
transmission side and the spring locking ring that
secures the roller bearing to the shaft (if present)
are also extracted (Photo 52).
Photo 52
