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Les langues disponibles
Maintenance
Any work on the motor-driven pumps must be carried out by qualified personnel with adequate preparation and suitable
equipment.
Any work on the motor-driven pumps must be carried out by qualified personnel with adequate preparation and suitable equipment.
DP, DPV, DX, DG, DH series. In normal conditions of use they do not require any special maintenance. Disassembly is not
DP, DPV, DX, DG, DH series. In normal conditions of use they do not require any special maintenance. Disassembly is not
recommended, even of individual parts, since any tampering can jeopardise the performance of the machine. If there is
recommended, even of individual parts, since any tampering can jeopardise the performance of the machine. If there is a danger of
a danger of frost, you should empty the body of the pump completely and the delivery pipe, then remove the machine
frost, you should empty the body of the pump completely and the delivery pipe, then remove the machine from the water and place
from the water and place somewhere dry. The DX, DG and DH motors have an electric motor and are mechanically sealed
when immersed in by biodegradable hydraulic oil (Fina Biohidran SR 38 or similar): pay attention because this oil may
somewhere dry. The DX, DG and DH motors have an electric motor and are mechanically sealed when immersed in by biodegradable
be characterized by excess pressure and/or temperature with respect to the external environment. A part from that, the
hydraulic oil (Fina Biohidran SR 38 or similar): pay attention because this oil may be characterized by excess pressure and/or temperature
oil used does not have special risks and does not contain substances harmful to health: in case of direct contact, simply
with respect to the external environment. A part from that, the oil used does not have special risks and does not contain substances harmful
wash the affected area with water.
to health: in case of direct contact, simply wash the affected area with water.
DV/DM/DC/DTR series. To ensure a long life to the motor-driven pumps, it is necessary to subject them to periodic
DV/DM/DC/DTR series. To ensure a long life to the motor-driven pumps, it is necessary to subject them to periodic maintenance. We
maintenance. We recommend conducting the following checks every 250-300 hours of operation or at least twice a year:
recommend conducting the following checks every 250-300 hours of operation or at least twice a year:
• check that the electric power supply is correct and that the current absorbed on the three phases is
• check that the electric power supply is correct and that the current absorbed on the three phases is balanced and not greater than
balanced and not greater than the value featured on the plate;
the value featured on the plate;
• check the electrical insulation of the motor;
• check the electrical insulation of the motor;
• check that the level of noise and vibration is equal the ones present in the conditions of the commis-
• check that the level of noise and vibration is equal the ones present in the conditions of the commissioning of the machine.
sioning of the machine.
Have an electric motor and are mechanically sealed on the motor side when immersed in by biodegradable hydraulic oil (Fina
Have an electric motor and are mechanically sealed on the motor side when immersed in by biodegradable hydraulic
oil (Fina Biohidran SR 38 or similar): pay attention because this oil may be characterized by excess pressure and/or
Biohidran SR 38 or similar): pay attention because this oil may be characterized by excess pressure and/or temperature with respect to
temperature with respect to the external environment. Under normal conditions the oil must be changed once a year, in
the external environment. Under normal conditions the oil must be changed once a year, in heavy-duty applications every six months.
heavy-duty applications every six months. To empty and fill the oil of the upper seal oil (motor side), use of the special
To empty and fill the oil of the upper seal oil (motor side), use of the special caps placed on the motor flange -Fig.6-. If the drained oil
caps placed on the motor flange -Fig.6-. If the drained oil looks like as an emulsion, replace with new one and check the
looks like as an emulsion, replace with new one and check the integrity of the mechanical seal on pump side. If there is also some
integrity of the mechanical seal on pump side. If there is also some water when the oil is discharged, the seal on the pump
water when the oil is discharged, the seal on the pump side must be replaced. Once the chamber has been filled with new oil, make
side must be replaced. Once the chamber has been filled with new oil, make sure that the plugs are tight and fitted with
sure that the plugs are tight and fitted with a new seal made of aluminium or copper. To empty and fill the oil in the motor chamber, use
a new seal made of aluminium or copper. To empty and fill the oil in the motor chamber, use the motor cover and/or, for
the motor cover and/or, for machines with greater power, the plug placed on the frame of the motor -Fig.7-; the mechanical seal on the
machines with greater power, the plug placed on the frame of the motor -Fig.7-; the mechanical seal on the motor side
motor side must be replaced if damaged or in the presence of liquid pumped into the motor chamber. Once the chamber has been
must be replaced if damaged or in the presence of liquid pumped into the motor chamber. Once the chamber has been
filled with new oil, make sure that the plug, if any, is tight and fitted with a new seal made of aluminium or copper. Also replace the
filled with new oil, make sure that the plug, if any, is tight and fitted with a new seal made of aluminium or copper. Also
replace the rubber seal placed between the cover and motor's frame.
rubber seal placed between the cover and motor's frame.
For the motor-driven pump to operate correctly is very important to use Fina Biohidran RS 38 or similar types of oil and
For the motor-driven pump to operate correctly is very important to use Fina Biohidran RS 38 or similar types of oil and follow the
follow the amount of oil stated in the table below:
amount of oil stated in the table below:
PUMP TYPE
DVT-DTRT300/DV-DTR200/DMT-DCT310/DM-DC210
DVT-DTRT200/DV-DTR150/DMT-DCT210/DM-DC160
DVT-DMT-DTRT150/DMT-DCT160
DVT-DMT-DTRT550-DCT560
DVT-DTRT400-DCT410
DVT-DMT-DCT-DTRT1000
DVT-DCT-DTRT750
DVT400-4/DMT400-4
DVT300-4/DMT300-4
DVT250-4/DMT250-4
DVT/DMT750-4
DVT/DMT550-4
In the case of operation with muddy liquids or very dirty water, immediately after use or before prolonged inactivity, clean the pump
In the case of operation with muddy liquids or very dirty water, immediately after use or before prolonged inactivity, clean
thoroughly by briefly operating with clean water in order to remove residual solids that may clog the impeller and obstruct internal
the pump thoroughly by briefly operating with clean water in order to remove residual solids that may clog the impeller
passages. Before starting up the pump again, check that the shaft turns freely, i.e. is not blocked by deposits or other causes and that
and obstruct internal passages. Before starting up the pump again, check that the shaft turns freely, i.e. is not blocked by
deposits or other causes and that electrical insulation of the motor and power cord are correct, that the oil is intact and at
electrical insulation of the motor and power cord are correct, that the oil is intact and at the right level. During transport and storage to
the right level. During transport and storage to keep its base resting on the relative suction pump, upright and with the
keep its base resting on the relative suction pump, upright and with the cord wrapped around the frame of the motor.
cord wrapped around the frame of the motor.
NOTE Before conducting any maintenance and/or repair disconnect the machine from the power supply.
NOTE Before conducting any maintenance and/or repair disconnect the machine from the power supply.
Pay attention to the sharp parts of the grinder (DTR models). Never remove water from the pump when the pump is still running.
Pay attention to the sharp parts of the grinder (DTR models). Never remove water from the pump when
the pump is still running.
Disposal
There is no need for special disposal procedures, please refer to local requirements in terms of disposal, recovery, reuse and recycling of
Disposal
materials.
There is no need for special disposal procedures, please refer to local requirements in terms of disposal, recovery, reuse
and recycling of materials.
AMOUNT OF OIL
MOTOR (I)
1,00
1,10
1,20
1,95
2,40
2,80
3,20
1,90
2,30
2,60
2,75
3,10
TRANSLATION OF ORIGINAL INSTRUCTIONS
AMOUNT OF OIL
MECHANICAL SEAL (I)
0,25
0,25
0,25
0,35
0,35
0,43
0,43
0,35
0,35
0,35
0,43
0,43
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