44
WILO SE 10-2014 V05 DIN A4
English
MAINTENANCE AND REPAIR
must be unplugged (do not pull the cable!). Work
on removal, maintenance and storage can then
commence.
BEWARE of poisonous substances!
Pumps that pump liquids hazardous to health
must always be decontaminated before un-
dertaking any other work. Otherwise, there
is a risk of fatal injury! Wear the necessary
physical protection equipment!
BEWARE of burns!
The housing parts can heat up to well above
40 °C. There is a risk of burns! After switch
-
ing it off, let the pump cool down to ambient
temperature.
7.3. Removal
7.3.1. Portable wet well installation
Pumps in portable wet well installation can be
lifted out of the pit once they have been discon-
nected from the mains and the pressure pipe has
been drained. It may be necessary to dismantle
the hose first. It may be necessary to use a suita
-
ble lifting device.
7.3.2. Stationary wet well installation
Pumps in stationary wet well installations with
a suspension unit are raised out of the sump using
the appropriate lifting equipment. During lifting,
always hold the power supply cable slightly taut
to prevent it being damaged.
The collector tank does not have to be emptied
especially for this purpose. All pressure- and suc
-
tion-side slide valves must be closed to prevent
the collector tank overflowing or the discharge
pipe being emptied.
7.3.3. Stationary dry well installation
For pumps in stationary dry well installation, the
suction- and pressure-side slide valves have to
be closed before removal. Note that the fluid in
the hydraulics housing will escape during removal.
Suitable collector tanks should be positioned to
collect all of the escaping fluid.
After undoing the screwed connections on the
suction and pressure connections, the pump can
be removed using suitable lifting equipment.
The operating space must be cleaned thoroughly
after the pump is removed and any drips must be
wiped up.
7.4. Return delivery/storage
For shipping, the parts must be packed in tear-
proof plastic bags of sufficient size in such
a manner that they are tightly sealed and leak-
proof.
For return delivery and storage please also refer
to the “Transport and storage” section!
7.5. Disposal
7.5.1. Operating materials
Oils and lubricants must be collected in appropri
-
ate containers and properly disposed of in terms
of EC Directive 75/439/EEC as well as in compli-
ance with the provisions of sections 5a and 5b
of the German Waste Act or the applicable local
laws.
7.5.2. Protective clothing
Protective clothing worn for cleaning and main-
tenance work is to be disposed of in accordance
with the German Waste Code TA 524 02 and EC
Directive 91/689/EEC.
7.5.3. Product
Proper disposal of this product avoids damage to
the environment and risks to personal health.
• Use the services of public or private waste dis-
posal companies, or consult them for the disposal
of the product or parts thereof.
•
For more information on proper disposal, please
contact your local council or waste disposal office
or the supplier from whom you obtained the
product.
8. Maintenance and repair
ELECTROCUTION hazard!
There is a risk of fatal electric shocks when
performing work on electrical devices. When
conducting any maintenance or repair work,
the pump must be disconnected from the
mains and secured against being switched
on again without permission. Damage to the
power supply cable may only be rectified by
a qualified electrician.
• Before any maintenance or repair work, the pump
must be deactivated and dismantled as described
in the "Decommissioning/disposal" chapter.
• After maintenance or repair work, the pump must
be installed and connected as described in the
"Installation" chapter.
•
The pump is switched on as described in the
"Commissioning" chapter.
Note the following:
• All maintenance and repair work must be carried
out by Wilo customer service, authorised service
workshops or trained specialists with the greatest
of care and in a safe workplace. Proper protective
clothing is to be worn.
•
This manual must be available to and observed
by the maintenance staff. Only maintenance
and repair work described in this manual may be
carried out.
Any other work and/or alterations to the
construction must only be carried out by Wilo
customer service.
• When carrying out work in basins and/or tanks,
the respective local protection measures must be