B&C Technologies IM Series Industrial Ironer - Manual (Page 111)

Caution
Caution
Caution
Graphite Metal foil
Etanorm SYA
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7.4 Dismantling
Before dismantling, secure the pump so as to
make sure it cannot be switched on accidentally.
The shut-off elements in the suction and discharge lines must
be closed and absolutely tight. Hot oil escaping or spurting out
may self-ignite. The operator is responsible for the perfect func-
tioning of the shut-off valves.
Special care must be taken when repairing pumps installed in
an on-duty system.
The pump must have cooled down to ambient temperature.
Pump pressure must have been released and the pump must
have been drained.
Dismantling and reassembly must always be carried out in ac-
cordance with the general drawing/exploded view.
7.4.1 Fundamental Instructions and Recommendations
Repair and maintenance work to the pump must only be carried
out by specially trained personnel, using original spare parts
(see 2.7).
Observe the safety regulations laid down in section 7.1.
Any work on the motor shall be governed by the specifica-
tions and regulations of the respective motor supplier.
Dismantling and reassembly must always be carried out in
the sequence shown in the exploded views on page 19 or
21.
In case of damage please contact KSB’s nearest customer ser-
vice centre (see enclosed directory of addresses).
7.4.2 Preparations for Dismantling
1 Interrupt power supply.
2 Disconnect all auxiliary supply lines.
3 Remove the coupling guard.
4 Coupling design without spacer sleeve
4.1 Dismantling of pump unit:
4.1.1 Disconnect the motor from the mains supply.
4.1.2 Disconnect the motor from the baseplate.
4.1.3 Shift the motor to decouple it from the pump.
4.1.4 Detach the discharge and suction nozzles from the
pipeline.
4.1.5 Remove the pump from the baseplate.
4.2 Volute casing remains on the baseplate and in the
pipeline when the unit is dismantled:
4.2.1 Disconnect the motor from the mains supply.
4.2.2 Disconnect the motor from the baseplate.
4.2.3 Shift the motor to decouple it from the pump.
4.2.4 Detach support foot 183 from the baseplate and undo
hex. nut 920.1 on the discharge cover.
4.2.5 Pull the bearing bracket with discharge cover and cpl.
rotor out of the casing (back pull-out unit).
5 Spacer type coupling design
5.1 Dismantling the pump unit:
5.1.1 Disconnect the motor from the mains supply.
5.1.2 Remove the coupling spacer.
5.1.3 Detach the discharge and suction nozzles from the
pipeline.
5.1.4 Remove the pump from the baseplate.
5.2 Volute casing remains on the baseplate and in the
pipeline when the unit is dismantled:
5.2.1 Disconnect the motor from the mains supply.
5.2.2 Remove the coupling spacer.
5.2.3 Detach support foot 183 from the baseplate and undo
hex. nut 920.1 on the discharge cover.
5.2.4 Pull the bearing bracket with discharge cover and cpl.
rotor out of the casing (back pull-out unit).
On larger pumps suspend or support the bearing
bracket end in order to prevent the back pullout
unit from tilting.
After a prolonged period of operation the individual components
may be hard to pull off the shaft. If this is the case, use a brand
name penetrating agent and/or - if possible - an appropriate
pull-off device.
Under no circumstances use force.
7.4.3 Pump
The pump shall be dismantled in the sequence given in the ex-
ploded views shown on page 19 or 21, respectively.
We recommend to place a drip pan under the whole length of
the pump, which collects the medium flowing out during dis-
mantling.
The generally applicable legal provisions for
disposal must be adhered to!
When replacing joint rings 411.3 and 411.4 made of CrNi
graphite, please note that the supporting material con-
sists of a thin CrNi metal foil (see fig. 7.4-1) which may cause
cutting injuries.
Always remove these joint rings with suitable tools, taking ad-
equate precautions.
Fig. 7.4-1 Joint ring with metal foil
7.4.4 Mechanical seal
In order to replace the mechanical seal, the pump must be dis-
mantled.
7.5 Reassembly
7.5.1 Pump
The pump must be reassembled in accordance with the rules of
sound engineering practice.
Reassembly shall be effected in the reverse order of disman-
tling. Make sure to reassemble the pump in the correct se-
quence.
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