DAB S4, Instruction For Installation And Maintenance

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ENGLISH
13
10. MAINTENANCE
Cleaning and maintenance activities must not be carried out by children (under 8 years of
age) without supervision by a qualified adult. Before starting any work on the system or
troubleshooting, it is necessary to interrupt the electrical connection of the pump (remove the
plug from the socket) and read the instruction and maintenance manual.
In normal operation the pump does not require any type of maintenance. The pump may not
be disassembled except by qualified and specialised personnel. Any modification
made without prior authorisation relieves the manufacturer of all responsibility.
All repair and maintenance work must be carried out only after having disconnected the pump
from the power supply mains.
It is recommended to have the system serviced every 6 months by a qualified technician.
In case of long periods of inactivity, it is recommended to start the pump 2 or 3 times a month.
If a join has to be made in the power cable, use a cable with a suitable cross section.
Any modification made without prior authorisation relieves the manufacturer of all
responsibility. All the spare parts used in repairs must be authentic and all accessories must
be authorised by the manufacturer, in order to ensure maximum safety of the machines and of
the systems in which they may be installed.
11. DISPOSAL
This product or its parts must be disposed of in an environment-friendly manner and in
compliance with the local regulations concerning the environment; use public or private local
waste collection systems.
12. TROUBLESHOOTING
FAULTS CHECKS (possible causes) REMEDIES
1. The motor does
not start
A. Check that the motor is powered and that
the voltage corresponds to the value on
the data plate
B. Check the presence of all phases for
three-phase motors
C. Dry running
A. Check the fuses
B. Restore the missing one
C. Lower the pump level or wait for the
natural restoration of the level in the
well
2. Motor
protection is
activated
shortly after
starting
A. Make sure that the supply voltage
corresponds to the value on the data
plate
B. Check the presence of all phases
C. Check the setting of the protection and
the presence of possible open or dirty
contacts
D. Check that the liquid temperature is not
too high
E. Check for excessive torque forces
(scraping between rotating and fixed
parts, sand in the pump, etc.)
B. Restore the missing phase
C. Restore the protections, consulting
the data plate or replacing the
components concerned
E. Eliminate the cause of friction or
clean the pump to remove any
obstructions