Operating manual
AQUA S.p.A.
ENGLISH
Page 22
Excessive gearbox or motor heating
•
Wrong electrical connections.
•
Check the electrical
connections and motor
absorption level.
•
Real working pressure higher
than the max admitted
pressure.
•
Install a manometer on delivery
pipe and check for the real
delivery pressure. In case,
reduce the pressure to
admitted value.
•
Delivery pipe contains section
reductions that consistently
increase the working pressure.
•
Reduce the working pressure
or install a pulsation dampener
to stabilize it and eliminate
pressure peaks.
•
Pipes transmit vibrations to
pump connections
•
Reduce the working pressure
or install a pulsation dampener
to stabilize it and eliminate
pressure peaks.
•
Obstructed delivery pipe or
closed by interception valve.
•
Check the delivery valve.
•
Counter pressure valve set as
an higher than admitted
pressure.
•
Check the counter pressure
valve set.
•
Oil level too low or chemically
contaminated.
•
Check and in case replace the
oil
DECOMMITIONING, DISPOSAL AND DEMOLITION
DECOMMITIONING
Before removing the pump from the plant, carefully follow the instructions at paragraph
7.3 “PRECAUTIONS BEFORE MAINTENANCE
”. Pay
particular attention when washing the pump wetted parts: pump-head and valve groups.
Capillary wash the liquid end in contact with the pumped product with compatible substances utilizing an adequate protection.
ATTENTION! Product remains trapped in the liquid end when the machine is stopped. Therefore for a good cleaning it is necessary to
dismantle the valve groups and clean the pump head separately. Alternatively the washing flux must be directed trough the suction valve
with the same direction of the pumped fluid when the pump works.
DISPOSAL AND DEMOLITION
Pumps are composed by some metallic and plastic parts, and has an electric motor. Gearbox contains oil and it is painted with a dust base paint It is
user responsibility to respect every local procedure and regulation for a correct disposal and demolition regards all further waste created during
machine maintenance, disposal or demolition.
Missing observance of this rules can provide administrative or criminal penalties
.
Before demolishing a pump or dismount for a parts disposal:
1.
Carefully follow instructions in paragraphs
7.3
and
9.1,
paying particular attention t the liquid end cleaning and connections.
2.
Completely drain the oil removing the drin plug and recover it into the supplied oil container or in an adequate alternative.
3.
Carefully clean the internal of the gearbox with appropriate products ensuring to remove all present oil traces.
Only if accurately cleaned,
maintenance or demolition waste can be considered “special wastes”. Otherwise they have to be
threated like “dangerous wastes”
It is absolutely forbidden to mix several types of wastes!!
Avoid environment or sewer release of products.
To preserve the enviroment AQUA reccomeds to separe all machine components, clean, ad leave them to specialized recycling consortiums and
companies. PDM components are listed in the following chart:
POS.
MATERIAL
NORMATIVE SIMBOL/CODE
NOTE
101 (Electric motor)
Copper and other materials
RAEE 160216
Electric Motor
502, 121
Polypropylene
126
Polyamide
Side shell
130
Polyamide/Aluminum
Pump body (for pumps with diaphragm size
80 and 110 mm, consider polyamide pump
body, for 170 mm diaphragm size consider
aluminum pump body)
