A313-01-880 Issue A
Page 18
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Installation
3.7.1
Fitting the bell-housing, coupling and motor
Ensure that you have all the necessary parts and tools available before commencing this task.
Ensure that all components are clean and free from any dirt and debris.
For pumps which are to be fitted with an IEC 30 kW motor, there is a single bell housing unit. All other motors require
the use of an additional mounting plate which is fixed to the bell housing unit and adapts this for the appropriate
mounting flange on the various permitted motor variants. The correct bell housing and adaptor plate are included in
the designated mounting kits together with the coupling and fixings.
It is recommended that you check the fit of the bell housing and adaptor flanges to each other, to the motor and to
the pump as appropriate before proceeding to the full installation. This may be done by taking suitable
measurements or by physically offering the components to each other.
Remove the four covers from the access holes on the outside of the bell housing.
Fit the bell housing to the pump ensuring that the spigot on the bell housing locates fully within the recess on the
pump. Note that the bolts to mount the bell housing are accessed from within the bell housing.
Where relevant, fix the additional mounting plate to the bell housing: again ensure that the spigot and recess locate
correctly before tightening the fixing bolts.
. Note that one of the hubs of the coupling has been bored to suit the pump drive shaft diameter
and the other to suit the motor shaft diameter. Check that the fixing set screws are in position in the coupling hubs
and that they do not protrude into the hub bores.
Fit the shaft key to the pump drive shaft and slide the appropriate coupling hub onto the shaft ensuring that it locates
on the key. Lightly tighten the hub fixing set screw so that the hub does not fall off the shaft during the following
operations. Place the elastomer 'spider' part of the coupling onto the coupling hub.
Fit the shaft key to the motor shaft and slide the other coupling hub onto the shaft ensuring that it locates on the
key. Position the hub relative to the face of the motor as shown in
and tighten the hub fixing set screw.
Using suitable lifting gear, fix the motor to the bell-housing (and mounting flange) which have previously been fixed
to the pump.
Ensure that the protruding annular ring on the motor flange locates correctly and fully into the matching recess on
the corresponding flange and that the 'fingers' of the coupling spider engage correctly. Secure the motor to the bell
housing.
Working through the access ports in the bell-housing, loosen the coupling hub fitted to the pump shaft. Slide this
coupling hub on its shaft to a position where the coupling spider is fully engaged and tighten the hub to the shaft.
Re-fit the covers over the access ports and secure in position.
WARNING
Note that the motors weigh in excess of 150 kg. They must only be lifted using appropriate lifting
gear in accordance with any local and national regulations.
WARNING
Note that the bell-housing weighs approximately 100 kg. It must only be lifted in accordance with
any local and national regulations.
