7 Servicing/Maintenance
31 of 36
KSB IE3-Motor
7.4.4 Dismantling the fan
1.
Remove the clamping screws or circlip (depending on the size).
2.
Pull off the fan using a suitable tool.
7.4.5 Dismantling the rotor
ü
Suitably sized lifting equipment is available.
1.
Remove non-drive-end and drive-end keys and store them in a safe place.
2.
Remove the bolts from the drive-end bearing cover.
3.
Stand the motor housing upright (drive end up); pull the bearing cover and
rotor out of the motor housing using suitable lifting equipment and set them
down.
7.4.6 Dismantling the bearings
Fixed bearing at
drive end
ü
The rotor has been removed.
ü
The keys have been removed and are stored in a safe place.
1.
Remove the circlip or bearing cover plate from the bearing cover, then remove
the bearing cover.
2.
Pull off the bearing using a suitable tool.
Radial bearing at
non-drive end
ü
The rotor has been removed.
ü
The keys have been removed and are stored in a safe place.
1.
Pull off the spring washer from the shaft end.
2.
Pull off the bearing using a suitable tool.
7.5 Assembling the motor
WARNING
Improper lifting/moving of heavy assemblies or components
Personal injury and damage to property!
▷
Use suitable transport devices, lifting equipment and lifting tackle to move
heavy assemblies or components.
CAUTION
Incorrect assembly
Damage to windings!
▷
When installing the bearing cover, take care not to damage the windings
protruding out of the motor housing.
General
▪
The motor should be assembled on a marking-out plate if possible. This will
ensure that the foot areas of the motor are properly aligned.
▪
Always reassemble the motor in accordance with the corresponding exploded
view.
▪
Clean all dismantled components and check them for signs of wear.
▪
Damaged or worn components must be replaced by new ones.
▪
Always use new tolerance rings.
▪
Make sure that sealing surfaces are clean and that O-rings or gaskets are properly
fitted.
Tightening torques
For reassembly, tighten all screws and bolts as specified in this manual.