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4.2.4 – STARTING AND STOPPING
Do not start the pump before having completed installation.
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Do not start the pump with wet hands or while standing on wet
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surfaces.
Under no circumstances insert fingers or other body parts or
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objects through the ports: the pump contains moving parts.
Check that the hoses are positioned correctly. If the pump was supplied with a switch,
start it by switching this to the on position corresponding to the direction of pumping
required. If the pump was supplied with the terminal block, start it by connecting it to
the power supply.
In this phase, take great care that there are no leaks or sprays of
liquid from the installation. It these are present, stop the pump
immediately and take action to eliminate them.
The pump must not run with the hoses completely closed for more
than one minute.
After a short period required for priming, the pump will start to transfer
liquid.
If pumping is not obtained and the suction hose bubbles air into the liquid
to be sucked up this means that the pump is pumping in the opposite
direction: in this case stop the pump and reverse the pumping direction or
stop the pump and invert connection of the hoses to the ports.
Operation must always be supervised;
check that the following do not occur:
overheating of the motor surface, reduction
in speed or stopping, abnormal noises or other events that indicate
malfunctioning. In this case, stop the pump immediately, remove the
plug (where present) from the socket and consult Chapter 6.
The noise produced by brass pumps type 20, 25, 30, 35, 40 if they are run
when dry (to be avoided at all costs) does not indicate a fault, but is
caused by the fact that in these models the impeller slides on the shaft to
facilitate maintenance.
To stop the pump, position the switch to stop (0) or disconnect the power
supply.
After it is switched off, the pump remains filled with
liquid, which is essential for priming; if there is any
chance of the ambient temperature dropping to
below the freezing point of the liquid, empty the pump body to avoid
breakage.
4.3 – WASHING AND STORAGE
Before removing the hoses discharge any pressure present
inside the pump. If accessible surfaces are hot (see Chapter
5.2) wait for the pump to cool before handling it or use
appropriate gloves.
If the pump is used for dangerous substances, the user is
responsible for defining the procedures for handling, washing,
storing and disposal of waste fluids in compliance with the safety
regulations in force for the specific substances treated.
If the pumped liquid has no particular problems, (i.e. water, sea water or
soap), in the event of an extended period of disuse, wash the inner walls
of the pump by pumping clean water, empty completely, dry the outer
surfaces with a soft cloth, coil the electric cable and hoses and store in a
dry and protected area.
Cleansing procedure
This allows deeper cleaning than the procedure described previously and
can be used in many cases. In uses with foods it is performed during
installation and as part of the wash cycle.
Prepare a detersive solution in a receptacle (i.e. common dishwashing
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liquid diluted with clean hot water at 40-50° C).
Insert the suction and discharge hoses of the pump into the receptacle
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and recirculate the liquid for 5 minutes.
Pump clean water until complete rinsing is obtained.
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Use with slightly perishable food substances (vegetable oil, wine,
vinegar)
Before and after use:
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Carry out the cleansing procedure;
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use the pump to recirculate a suitable sanitizing and disinfecting solution
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(i.e. based on peracetic acid) for an adequate time;
rinse the inside of the pump body by pumping clean water until the
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sanitizing and disinfecting solution has been completely eliminated.
Before use, perform the start-up procedure, discarding a first fraction
of liquid. Dispose with the fluid used for washing and the discarded
liquid from start-up in compliance with the current provisions of law.
In the specific case of use with vegetable oils, if the pump is to remain
in disuse for a short period of time and subsequently used again for
the same type of oil, it can simply be emptied and the ports capped.
Use with highly perishable food substances (such as milk)
Wash before use, at each time interval established by the HACCP
protocol applied and after use, disassembling the pump, cleansing and
disinfecting its parts with methods depending on the type of liquid. This
operation must be carried out by qualified personnel experienced in
performing the pump disassembly and reassembly procedures.
4.4 – USE OF THE BY-PASS (optional device)
The by-pass is a device to adjust capacity and head of the pump and is
located on the outside in the form of a knob; it can be rotated counter-
clockwise to reduce the maximum capacity to around half and the
maximum head by around a quarter. During the priming stage close the by
-pass by rotating the knob completely clockwise, as priming capacity is
greatly reduced with the by-pass open.
4.5 - DEMOLITION
At the end of its useful life the pump must be demolished, in strict
compliance with the standards in force in the country of use. Do not
neglect any residue of liquid present inside the pump body.
Only EU countries
The pump belongs to the category of electric and electronic
equipment (EEE). The symbol shown here means that it cannot
be disposed of as domestic waste. At the end of its useful life the
owner must deliver the pump to a WEEE collection point, where it
will be subjected to recycling. For more information, contact the
relevant local authority department or the store from which the pump was
purchased.
5 – INFORMATION ON RESIDUAL RISKS
5.1 – CONTACT WITH MOVING PARTS
Do not insert objects through the holes in the fan cover (ref. 2), which
covers the motor cooling fan.
5.2 – TEMPERATURE OF ACCESSIBLE SURFACES
In typical conditions of use, the outer surfaces of the motor part
can reach temperatures in excess of around 40° C higher than the
surrounding ambient temperature. The outer surfaces of the
pumping body reach the temperature of the pumped liquid, and can
therefore be very hot or very cold. In the event of these temperatures
representing a danger, the user must adopt suitable protective measures
(enclose the pump with barriers, handle using suitable gloves).
5.3 – RISKS CAUSED BY SPATTERING AND LEAKAGE OF FLUIDS
Undesirable leakage or spraying of liquid may occur, for example,
in the following cases:
- installation procedure carried out incorrectly;
- wear and tear of hoses;
- wear and tear of sealing device (resulting in spattering of liquid
from the space between the flange and the pump body) or of other
gaskets (O-ring or counterflange gasket);
- corrosion of the pump body;
- incorrect reassembly after maintenance;
- pumping of cold liquids, with water vapour condensation forming on the
outer surface of the pumping body and consequent dripping.
These events cause a wet environment (with danger of electric shock,
danger of slipping, etc.) and the risk of persons, animals or objects being
struck by jets of liquid. In particular, maximum caution must be taken when
pumping liquids that are flammable, corrosive, at high temperature or in
any way dangerous for living things or for the environment. The user must
assess these risks and if necessary provide appropriate protection from
jets of liquid (i.e. screens) and collection vessels in a suitable position.
Liquid from leakages must be removed and disposed of correctly and
safely.
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