5
Verifications prior to initial start-up
After making the connections defined in the preceding section,
unscrew the filter cover and fill the pump prefilter with water to
the bottom level of the suction line. Verify that the pump shaft
turns freely.
Verify that the mains voltage and frequency match those
specified on the nameplate of the pump.
Set the prefilter cover back in place and screw it to a suitable tightness.
Check that the turning direction of the motor matches that specified on the
fan cover. In three phase motors, if the turning direction is incorrect, reverse
two supply phases on the protection panel.
If the motor does not start, try to determine the cause of the irregularity by
consulting the list of common faults and their possible solutions, provided in
this manual. NEVER RUN THE PUMP DRY.
Starting
Open all the gate valves and put the motor under voltage. Wait a
reasonable time to allow self-priming. Verify the breakaway current and
suitable adjust the thermal relay.
Maintenance
WARNING: Ensure that the pump is switched off from the
supply mains before removing the cover.
Pumps are not to be plugged permanently to the supply voltage.
Our pumps do not require any specific maintenance. It is advisable, however,
to periodically clean the pump filter and to empty the pump housing in low
temperature periods through the blow off plug. If the pump is to remain idle,
it is advisable to empty and clean it, and then reinstall the filter cover with
oring lubricant on the rubber gasket, taking measures to ensure that the place
where the pump is to be stored will remain dry and ventilated.
In the event of breakdown, the user must in no event handle the pump,