en-US Application/Use
8 WILO SE 2017-03
▪If the motor emerges during operation, the motor
housing can get over 40°C hot.
▪Open all gate valves on the suction and pressure side of
the pipe.
▪Ensure minimum water submersion with dry-running
protection.
▪Under normal operating conditions the product has a
sound pressure of below 85dB(A). However, the actual
sound pressure level depends on several factors:
– Installation depth
– Installation
– Fixation of accessories and piping
– Duty point
– Immersion depth
▪If the product is running under the applicable operating
conditions, the operator must carry out a sound pres-
sure measurement. Hearing protection must be worn if
the sound pressure is above 85dB(A) and an indication
made in the work regulations!
2.9 Maintenance work
▪Wear the following protective equipment:
– Closed safety goggles
– Safety shoes
– Safety gloves against cutting injuries
▪Always carry out maintenance work outside the oper-
ating space/installation site.
▪Only perform maintenance work which is described in
these 'Installation and operating instructions'.
▪Only original parts from the manufacturer may be used
for maintenance and repair. The use of parts other than
original parts absolves the manufacturer of any liability.
▪Immediately clean up leakage from the fluid and oper-
ating fluid and dispose of according to the locally appli-
cable guidelines.
▪Store tools in the places provided.
▪Upon completion of the work re-install all safety and
monitoring devices and check for correct functioning.
Change of operating fluid
In the event of a defect a pressure of several bar can
arise in the motor! This pressure escapes when open-
ing the screw plugs. Screw plugs opened carelessly can
be ejected at high speed! To avoid injuries, observe the
following instructions:
▪Adhere to the prescribed sequence of work steps.
▪Unscrew screw plugs slowly but never fully. As soon as
the pressure escapes (visible whistling or hissing of air),
do not turn any further.
WARNING!When the pressure escapes, hot operating
fluid can also spurt out. This can lead to burns! To
avoid injury, allow the motor to cool down to ambi-
ent temperature before any work!
▪When the pressure has fully dissipated, fully unscrew
screw plug.
2.10 Operating fluids
The motor is filled with white oil in the sealing cham-
ber. The operating fluid must be replaced during the
regular maintenance work and disposed of according to
the local guidelines.
2.11 Operator’s obligations
▪Provide the 'Installation and operating instructions' in
the language of the personnel.
▪Ensure the required training of personnel for the speci-
fied work.
▪Provide the required protective equipment and ensure
that the personnel wear the protective equipment.
▪Keep the attached safety and information signs on the
product permanently legible.
▪Instruct the personnel in the operating principle of the
system.
▪Rule out danger from electrical power.
▪Fit dangerous components within the system with an
on-site guard.
▪Secure and mark the work area.
▪For a safe workflow define the personnel’s work plan.
Children and persons under 16 years of age or with lim-
ited physical, sensory or mental capacities are prohib-
ited from handling the product! Persons under 18 years
of age must be supervised by a technician!
3 Application/Use
3.1 Intended use
The submersible pumps are suited for pumping:
▪Sewage with faeces (in accordance with EN12050-1)
▪Wastewater (with small amounts of sand and grit)
▪Pumped fluids with up to max. 8% dry matter
3.2 Improper use
DANGER
Explosion due to pumping explosive fluids!
Pumping highly flammable and explosive fluids
(benzene, kerosene etc.) in their pure form is strictly
forbidden. There is a risk of fatal injury due to explo-
sion! The pumps are not designed for these fluids.
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