DAB KVC 3/3, Instruction For Installation And Maintenance

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ENGLISH
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5. MANAGEMENT
5.1 Storage
All the pumps must be stored indoors, in a dry, vibration-free and dust-free environment, possibly with
constant air humidity.
They are supplied in their original packaging and must remain there until the time of installation. If this is
not possible, the intake and delivery aperture must be accurately closed.
5.2 Transport
Avoid subjecting the products to needless jolts or collisions.
To lift and transport the unit, use lifting equipment and the pallet supplied standard (if applicable).
Use suitable hemp or synthetic ropes only if the part can be easily slung, connecting them if possible to the
eyebolts provided.
In the case of coupled pumps, the eyebolts provided for lifting one part must not be used to lift the pump-
motor assembly.
5.3 Dimensions and weights
The adhesive label on the package indicates the total weight of the electropump. The dimensions are given
on page 95.
6. WARNINGS
6.1 Skilled technical personnel
It is advisable that installation be carried out by skilled personnel in
possession of the technical qualifications required by the specific
legislation in force.
The term skilled personnel means persons whose training, experience and instruction, as well
as their knowledge of the respective standards and requirements for accident prevention and
working conditions, have been approved by the person in charge of plant safety, authorizing
them to perform all the necessary activities, during which they are able to recognize and avoid
all dangers. (Definition for technical personnel IEC 364).
6.2 Safety
Use is allowed only if the electric system is in possession of safety precautions in accordance with the
regulations in force in the country where the product is installed (for Italy, CEI 64/2).
6.3 Checking motor shaft rotation
Before installing the pump you must check that the rotating parts turn freely. For this purpose, proceed as
follows on the pump concerned:
KVC: remove the fan cover (13) from its seat in the motor end cover (11). Insert a screwdriver in the notch
on the motor shaft from the ventilation side. If there is a blockage, turn the screwdriver, tapping it gently
with a hammer (Fig.A).
KV 3/6/10: remove the fan cover (13) from its seat in the motor end cover (11). Move the fan by hand to
turn the motor shaft a few times. If there is a blockage, remove the two coupling guards (92) and exert force
on the coupling (40), trying to turn it.
KV 32/40/50: remove the eight screws (71) and remove the two coupling guards (92) from their seats so as
to have access to the coupling (40/40A). If there is a blockage, apply try to make il more vertically up and
down so as to free the impellers. If this is still not enough, place the pump in horizontal position, remove the
1” plug (64) located under the suction body (96) and tap on the screw (18A) with a hammer, placing a
suitably sized round piece of brass between the screw and the hammer. To check whether the impellers have
been freed, slacken the screws (136) or nuts (133), depending on the version, remove the lubricator extension
(101), if fitted, and remove the fan cover (13), then exect force on the fan (12) by hand turn it a few times.
Do not force the fan with pliers or other tools to try to free the pump
as this could cause deformation or breakage of the pump.
6.4 New systems
Before running new systems the valves, pipes, tanks and couplings must be cleaned accurately. Often
welding waste, flakes of oxide or other impurities fall off after only a certain period of time. To prevent
them from getting into the pump they must be caught by suitable filters. The free surface of the filter must
have a section at least 3 times larger than the section of the pipe on which the filter is fitted, so as not to
create excessive load losses. We recommend the use of TRUNCATED CONICAL filters made of corrosion-
resistant materials (SEE DIN 4181).