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7.1 ROUTINE MAINTENANCE
Follow the instructions in the 'SWITCHING OFF' section and abide by the recommendations
in the table below.
WARNING
• During use, the pump should not be too noisy and large amounts of water or oil should not drip
from underneath it.
In this event, a Skilled Technician should test the appliance.
7.1.1 D
IAPHRAGM RUPTURE
The rupture of one or more diaphragms can result in the mechanical parts of the pump being
damaged by the liquids being pumped.
The following are symptoms of possible diaphragm rupture:
• oil takes on a whitish appearance (symptom of water in the oil)
• excessive consumption of oil
• sudden lack of oil in the volumetric compensator
WARNING
• To avoid the negative consequences of this malfunction, stop operation of the pump immediately
and contact a Skilled Technician without delay (within 24 hours) who will take the necessary
action.
If it is not possible to contact a Skilled Technician within the above time in case of diaphragm
rupture, we recommend you drain the pump crankcase of the mixed oil and pumped liquid and
then fill it with oil or diesel to prevent the formation of rust.
• The following are frequently the causes of diaphragm rupture:
- bottlenecks in the intake circuit (inadequate pipe section, dirty filter, very dense liquid being
pumped, etc)
- the use of very aggressive chemicals
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