Removal; Return Delivery/Storage; Disposal; Maintenance And Repair - Wilo -Rexa PRO series Einbau- Und Betriebsanleitung

US English
on removal, maintenance, and storage can then
commence.
DANGER: from toxic substances!
Pumps that pump liquids hazardous to health
must always be decontaminated before under-
taking any other work. Otherwise, there is a
risk of fatal injury! Wear the necessary physical
protection equipment!
CAUTION: beware of burns!
The housing parts can heat up to well above
104 °F (40 °C). There is a risk of burns! After
switching it off, let the pump cool down to am-
bient 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 disconnected
from the power supply and the pressure pipe has
been drained. It may be necessary to detach the
hose first. It may be necessary to use a suitable
lifting device.
7.3.2. Stationary wet well installation
Pumps in stationary wet well installations with a
guide system 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 operating space does not have to be emptied
especially for this purpose. All pressure- and suc-
tion-side slide valves must be closed to prevent the
operating space 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 hy-
draulics 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 op-
erating 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!
24

MAINTENANCE AND REPAIR

7.5. Disposal

7.5.1. Operating materials
Oils and lubricants must be collected in suitable
vessels and disposed of in accordance with local
directives.
7.5.2. Protective clothing
The protective clothing worn during cleaning and
maintenance work must be disposed of in accor-
dance with local directives.
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 disposal
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. With all
maintenance or repair work, the pump must be
disconnected from the power supply and se-
cured against being switched on again without
permission. Damage to the power supply cable
may only be rectified by a qualified electrician.
UNAUTHORIZED work could result in fatal
injuries!
Maintenance and repair work that affects the
safety of Ex protection must be carried out
only by the manufacturer or authorized service
workshops.
Also note the additional information in the
appendix!
• Before any maintenance or repair work, the pump
must be deactivated and dismantled as described in
the "Decommissioning/disposal" section.
• After maintenance or repair work, the pump must
be installed and connected as described in the "In-
stallation" section.
• The pump must be switched on as described in the
"Commissioning" section.
Note the following:
• All maintenance and repair work must be carried
out by Wilo customer service, authorized service
workshops, or trained specialists, with the greatest
of care and in a safe workplace. Proper protective
clothing is to be worn.
WILO SE 2014-11 V05 Letter