Safety Rules During Operation; Decommissioning/Disposal - Wilo EMU FA Serie Instrucciones De Instalación Y Funcionamiento

DECOMMISSIONING/DISPOSAL

• The pump sump is to be cleaned of any coarse
contaminants, especially of solids such as sand/
grit, metal and stone
• Clean the pipe system on the pressure side
• Open all slide valves on the pressure side
• The fluid must be present at least up to the suc-
tion opening of the hydraulics housing.
• The pipe system must be vented by suitable
venting devices in the system.
• Check to ensure all accessories are properly fitted
• Check all level control and dry-running protection
systems
6.5.3. Switching on
The pump is switched on and off manually using
a separate operating point (on/off switch, switch-
gear) provided by the customer. A separate level
control device must be installed for automatic
operation.
6.5.4. After switching on
The rated current is briefly exceeded during the
start-up procedure. Once the start-up procedure
has completed, the operating current may no
longer exceed the rated current.
If the motor does not start immediately after
the pump is switched on, it must be switched
off without delay. The start pauses specified in
the "Technical data" section must be observed
before starting up again. If the fault recurs, the
pump must be switched off again immediately.
The pump should only be restarted once the fault
has been rectified.

6.6. Safety rules during operation

LETHAL explosion hazard
If the gate valves on the suction and pressure
side are closed during operation, the fluid in
the hydraulic housing will be heated up by the
pumping movement. Considerable pressure
is created in the hydraulic housing by the
heating. The pressure can cause the pump to
explode! Before switching on the unit, ensure
that all the slide valves are open and open any
closed slide valves.
BEWARE of rotating parts!
The rotating parts can crush and sever limbs.
Never reach into the hydraulics or the moving
parts during operation.
• Before performing maintenance or repairs,
switch off the pump, disconnect it from the
mains and secure it against being switched on
again without authorization.
• Let the moving parts come to a stop!
When operating the pump, always follow the
locally applicable laws and regulations for work
safety, accident prevention and handling elec-
trical machinery. To help ensure safe working
practice, the responsibilities of employees should
be clearly specified by the operator. All personnel
Installation and operating instructions Wilo-EMU FA+T-Motor
are responsible for ensuring that regulations are
observed.
The pump has moving parts. During operation,
these parts turn to pump the fluid. Certain ma-
terials in the pumped fluid can cause very sharp
edges to form on the moving parts.
The following must be checked at regular inter-
vals:
• Operating voltage (permissible deviation +/-
5% of the rated voltage)
• Frequency (permissible deviation +/- 2% of the
rated frequency)
• Current consumption (permissible deviation
between phases is a maximum of 5%)
• Voltage difference between the individual
phases (max. 1%)
• Starts and stops per hour (see technical data)
• Air entry in the intake, a deflector plate should
be fitted if necessary
• Minimum water submersion, level control de-
vice, dry-running protection
• Smooth running
• Gate valves in the intake and pressure pipes
must be open.
6.6.1. Operation in the limit range
If necessary, the pump can run briefly in the limit
range. The following parameters must then be
strictly adhered to:
• Operating voltage (permissible deviation +/-
10 % of the rated voltage)
• Frequency (permissible deviation +3 to -5 % of
the rated frequency)
• Voltage difference between the individual
phases (max. 1%)
Significant deviation from the operational data is
to be expected (also see DIN VDE 0530, Section
1).
We do not recommend continuous operation in
the limit range because the pump is subjected to
greater wear with an increased risk of failure!
7. Decommissioning/disposal
• All work must be carried out with the greatest
care.
• Proper protective clothing must be worn.
• When carrying out work in basins and/or con-
tainers, the respective local protection measures
must be observed in all cases. A second person
must be present for safety reasons.
• Only lifting equipment that is in a technically
perfect condition and load-carrying equipment
that has been officially approved may be used for
lowering and raising the pump.
RISK of fatal injury due to malfunctions!
Load-carrying and lifting equipment must
be in a perfect technical condition. Work
may only commence if the lifting equipment
has been checked and found to be in perfect
working order. If it is not inspected, fatal
injuries may result.
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