Operating manual
AQUA S.p.A.
ENGLISH
Page 19
Gearbox seals replacements
24 months
8000
Gearbox oil replacement
24 months
8000
PERIODICAL VISUAL CHECK
Verify at least weekly:
•
Absence of pumped fluid / oil leaks. In case of seal or diaphragm rupture. this will be shown in the bottom of diaphragm chamber, as
indicated in figure:
•
Absence of abnormal noises or vibrations;
•
Correct Tightening Torque and further oxidation of electric parts;
•
Correct connections tightness and their seals;
•
Power consumption limits respect and thermal protection set;
•
Oil level matching with the middle of the oil level plug and the absence of oil leaks or contaminations;
•
General machine Cleanliness and the absence of fouling in particular nearly the motor;
•
Good general condition of paint, especially in corrosive environments.
PRECAUTIONS BEFORE MAINTENANCE
Before operating in any part of the pump:
Stop the motor and disconnect the pump and any auxiliary connection from the electric power.
Ensure the impossibility of accidentaly start.
Depressurize. Close suction and discharge interception valves, then empty the liquid end and piping parts in communication with
any parts of liquid.
Waiting until the pump cools down. ATTENTION: Electric motor surface temperature may exceed 50°C during normal use.
Capillary wash the liquid end in contact with the pumped product with compatible substances utilizing an adequate protection.
ATTENTION! Products remains trapped in the liquid end when the machine is stopped. So for a good cleaning 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.
VALVE GROUP REPLACEMENT
1.
Disconnect the pump by suction and delivery pipes after an adequate wash.
2.
Unscrew valve groups
by hand or EAT1 device
if the liquid end is in plastic material. In case of metallic version, you can just unscrew the
valve housing a wrench n. 27.
3.
Replace with the new valve groups, supplied already pre-assembled by AQUA following the indication of the fluid direction, screwing using
EAT1 or a n. 27 wrench tool according to the liquid end material.
Attention! In case of group inversion, the pump will not work!
Washing fluid direction
