Put the pump in a horizontal
position. The suction pipe must
be the straightest possible. It’s
free end , at a distance of, at
least, twice the diameter from
the bottom of the excavation, is
attached to a strainer to avoid the
suction of materials which could
damage the pump.
Safety precautions
In order to minimize the risk of accidents in
connection with service and installation work, the
following rules should be followed :
1. Never work alone. Use a lifting harness, safety
line and a respirator as required. Do no ignore
the risk of drowning.
2. Make sure there are no dangerous gases within
the work area.
3. Check the explosion risk before welding or using
electric hand tools.
4. Before the pump is installed check that all the
parts have not been damaged during the
transportation.
5. Observe strict cleanliness. Do not ignore health
hazards.
6. Bear in mind the risk of mechanical accidents.
7. Make sure that the lifting equipment is in good
condition and comply to local ordinances.
8. Provide a suitable barrier around the work area,
eg. a guard rail.
9. Make sure you have a clear path of retreat.
10.Use safety helmet, safety goggles and protective
shoes.
11. A first-aid kit must be close at hand.
Follow all health and safety rules and local codes
and ordinances.
Pumping units with diesel engine
The pumping unit must be installed in adequately
ventilated environments in order to provide sufficient
air for combustion and dissipation of the heat
generated.
If the pumping unit provided
with diesel engine is installed
in a closed place, the exhaust
gases must be conveyed to
the outside. The pumping unit
must be installed at least at a
distance of 4 meters from
combustible and flammable
materials or from pressurised
containers.
Pumping unit with electric motor
The user must protect the
electrical power supply line
and the pumping unit against
short circuits and overloads by
connecting an adequate
thermal magnetic circuit
breaker.
In order to avoid the risk of electrocution due to
direct or indirect contacts with energized parts
the user must protect the pumping unit from
direct and indirect contacts, in compliance with
current regulations, taking account of the
ambient utilisation conditions that increase
electrical risks (e.g. differential circuit-breaker
Idn
≤≤≤≤≤
30 mA on building sites); in particular the
pumping unit must not be positioned inside
narrow conducting environments, i.e. with good
earth connection (e.g. damp or wet
underground site or walls of a narrow
excavation) and reduced volume.
Damage to the power supply cable and housing
can involve contact with energized parts and
life risk;
before starting:
−
Check the power cable and the control panel
condition.
−
Check that the power cable size is right and
it’s protected against mechanical damage.
−
If the power cable or unit is damaged, do
not operate!
−
Replace the damaged power cable with a
new one.
−
Use plugs with suitable protection rating
according to the environment where the unit
is operating (min. IP 55).
Check that the direction of rotation direction is
according to the direction indicated on the
electrical motor; if not, change the connection
of two phases (before this operation, make sure
that the electrical circuit is not energized).
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