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Maintenance
6
Maintenance
Interval
Maintenance work
Quarterly*
Check the metering diaphragm for damage** - refer to
n
"Repair".
Check that the hydraulic lines are fixed firmly to the
n
liquid end.
Check that the suction valve and discharge valve are
n
correctly seated.
Check the leak-tightness of the entire liquid end - partic‐
n
ularly around the leakage hole.
Check that the flow is correct: Allow the pump to prime
n
briefly - turn the multifunction switch briefly to "100 %".
Check that the electrical connections are intact
n
Check the integrity of the housing.
n
Check that the dosing head screws are tight
n
* Under normal loading (approx. 30 % of continuous operation)
Under heavy loading (e.g. continuous operation): Shorter intervals.
** For feed chemicals which particularly load the diaphragm, e.g. those containing abrasive addi‐
tives, check the diaphragm frequently.
Tightening torque
Data
Tightening torque for screws:
44
Personnel
Technical personnel
Value Unit
4.5 ... 5.0 Nm
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