OPERATION
Before starting
Check that the visible parts of the pump and
installation are undamaged and in good condition.
Before starting work on the
pump, make sure that the
pump cannot be energized
In case of emergency, stop the
pumping unit via the mushroom-
head push button on the control
panel (electrical motor) or via the
lever stop system (diesel
engine).
Make sure that the pump
cannot roll or fall over and
injure people or damage
property.
In some installations the
pump surface and the
surrounding liquid may be
hot. Bear in mind the risk of
burn injures
The noise level of 70 dB
may be exceeded
On specific request the
pumping unit can be
provided with soundproof
enclosure.
Before starting the unit, fill the pump casing with
water up to the lid (Tab.5 a page 10).
Then make sure there are no water leakages in the
mechanical seal or in the suction valve.
In the first case they would prevent the pump from
working properly and they would prolong pump-
priming times.
After this simple check, start the drive unit.
Remember that internal combustion engines must
be warmed up for some minutes till they reach the
optimum temperature.
Do not change or modify the
engine calibration in any
way.
Never operate the pump
without water.
Possible causes of unsuccessful pump-priming
- Pump-casing without water or with a level of the
water too low.
- Air passing through suction pipe, connectors etc.
- Broken or worn-out tang of the volute (see Tab.2,
part.4)
- Wrong number of drive unit revolutions.
- Broken or worn-out impeller.
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