Interval
Maintenance work
Personnel
Quarterly*
n
ATEX pump only: Special maintenance work - refer to the
"Safety information for ATEX pumps".
n
ATEX pumps with an add-on power end only: Check the
gear ring/DZ element of the ROTEX
®
coupling as per their
manual.
If the coupling is OK, the maintenance interval can be
increased to 4000 hours.
If the coupling is not clearly OK: Call ProMinent Service.
Technical personnel
Check the tightening torques for the dosing head screws (1)
(30 Nm) and the drive flange screws (2) (25 Nm).
Technical personnel
Check the correct seating and state of the metering lines at
both discharge and suction ends.
Technical personnel
Check that the discharge valve and suction valve are correctly
seated.
Technical personnel
Check whether the diaphragm rupture sensor stops the pump
or generates an alarm after it is triggered, see the chapter
"Repairs".
Technical personnel
Check that the diaphragm rupture sensor is firmly seated.
Technical personnel
Check that the flow is correct: Allow the pump to prime briefly. Technical personnel
Check the leak-tightness of the entire liquid end - particularly
around the leakage hole!
With critical applications, check or replace the diaphragm at
regular intervals.
Technical personnel
Check that the electrical connectors are intact.
Electrician
Electrical technician
with additional explosion
protection qualification
Check the tight, clean electrical connection of the earthing
wires.
Electrician
Electrical technician
with additional explosion
protection qualification
Check the tight, clean electrical connection of the potential
equalisation wires.
Electrician
Electrical technician
with additional explosion
protection qualification
Check the oil level.
Technical personnel
Check whether the pump is transporting media correctly - run
briefly at high power. Observe the maximum permissible
operating pressure!
Technical personnel
Check, whether moisture can be detected at the hose nozzle
(3); if so a diaphragm rupture has probably occurred.
As a preventative maintenance measure, you can also
replace the other parts of the spare parts kits together with
the diaphragm.
Technical personnel
Maintenance
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