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MVA 02 rev 5 - December 2017
5.- Fit the impeller fixing bolt and the relative spring
washer into the central unthreaded hole of the disk
and fix it to the motor shaft (Photo 25).
Photo 25
6.- Tighten the bolt until the tightening torque
indicated in Chart 12.1 is reached (Photo 26).
Photo 26
7.- Turning the impeller by hand, check that it is
correctly centred with respect to the casing. If
necessary, move the motor or adjust the motor
base. When the impeller has been centred, tighten
all fixing bolts of the base and the motor, respecting
the tightening torque values indicated in Chart 12.1
(Photo 27).
Photo 27
Fixing screw
Spring
washer
Disk