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MVA 02 rev 5 - December 2017
1.-
If necessary, reduce the diameter of the motor
shaft until its nominal size is reached with a
tolerance of +0/+5 microns.
Keeping the impeller
raised with suitable lifting equipment, move it
towards the motor and fit the motor shaft (Photo 19)
into the hole in the hub bush.
Photo 19
2.- Find the correct angle of rotation that allows the
stub on the shaft to fit into the slot in the sleeve
(Photo 20), and push the impeller until it fits fully
onto the motor shaft. The extraction groove on the
hub or the threaded extraction holes must be on the
side of the free end of the shaft (Photos 21a and
21b).
Photo 20
Photo 21a
Photo 21b
Motor shaft
Extraction groove
Threaded extraction holes