Marina-Speroni RSM 3 Mode D'emploi page 8

3. Before Starting
Your irrigation pump is self-priming. Before starting for
the first time, the pump has to be filled through the delivery
union with the delivery liquid until it overflows.
Suction Piping
• Fit the water suction pipe so that it points upwards
towards the pump. Absolutely avoid fitting the suction
pipe higher than the pump (formation of air bubbles in
the suction pipe).
• The suction and delivery piping must be fitted so as not
to be able to apply any mechanical pressure on the pump.
• The suction valve should be situated at least 30 cm.
below the bottom water level.
• Suction pipes that are not airtight suck in air obstructing
suction of the water.
Delivery Piping
During suction, the cut-off parts (sprayers, valves, etc.)
situated in the delivery piping have to be fully open so
that the air in the suction pipe can be freely expelled.
4. Maintenance Instructions
The irrigation pump is entirely maintenance-free.
Should the pump become blocked, first try rinsing. Should
it turn out that the blockage is due to the inefficiency or
5. Troubleshooting Table
Trouble
Motor will not start
Pump will not suck
Insufficient rate of flow.
Thermal cutout switches off pump.
If it is not possibile to eliminate the trouble, please call our service department.
To avoid damage during transport, please ship in the ORIGINAL PACKING.
complete absence of the filters, dismantle the hydraulic
section and thoroughly rinse the interior, carefully
reassemble and refit the filters correctly before turning
back on.
• If there is a risk of frost, the pump has to be emptied
completely.
• When the pump is not going to be used for a long time,
for instance in the winter period, it is recommended to
rinse out the pump thoroughly with water, empty it
completely and store it in a dry place.
• Before restarting, check whether the pump works freely
by briefly connecting and disconnecting it.
• Then fill the pump again with the delivery liquid and set
it up for use.
Cause
• No mains voltage.
• Pump impeller jammed
• Thermostat detached.
• Suction valve not in water.
• Pump chamber with no water.
• Air in suction pipe.
• Suction valve not airtight.
• Suction rose dirty.
• Max. suction lift exceeded.
• Suction lift too high.
• Dirty suction rose.
• Water level falls quickly.
• Pump flow rate reduced by foreign
bodies.
• Motor overload. Excessive friction
caused by foreign bodies.
7
CAUTION!
In order to work, the pump must always be filled
with the delivery liquid until it overflows!
Caution: The pump must never run dry. The
manufacturer's warranty is null and void in the event
of damage to the pump caused by its running dry.
Check that the pump is airtight, in fact not airtight
pipes draw in air preventing the pump from working
properly.
Remedy
• Check voltage.
• Dismantle the hydraulic section and
check whether the impeller rotates freely;
reassemble with care.
• Put the suction valve into water
(min. 30 cm.)
• Pour water into the suction union.
• Check airtight of the suct. pipe.
• Clean the suction valve.
• Clean the suction rose.
• Check the suction lift.
• Check suction lift.
• Clean the suction rose.
• Set the suct. valve lower down.
• Clean the pump and replace the worn
parts.
• Eliminate the foreign bodies.
Wait for the thermal cutout switch to
trigger again (approx. 20 mins.).