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5
The pump stalls
Intake clogs during operation.
Replace the intake pipe
Dirty air, full of condensate or oil.
Check the air line
Insufficient air volume or pressure.
Check the pressure with a gauge installed on
thepump and with running pump. If pressurein that
point is too low related
to the mains pressure, check all the air connections,
especially the quick couplings Check that all the air
control devices have a sufficient flow rate. WAR-
NING: In 90% of the cases stall conditions depends
on the quick couplings.
Defective distributor.
Replace it
The stop procedure was not respec-
ted.
Respect the stop procedure
6
The pump does not
deliver the flow rate
indicated on the table.
The product intake pipe is not cor-
rectly connected
Check
Clogged pipes
Check and clean
Too viscous fluid.
Install pipes with greater size especially for intake
and decrease the pumps cycles
The balls do not close
Disassemble the manifolds and clean the seats or
replace the balls and the seats
Insufficient air volume.
Check pressure with a gauge installed on the pump
and with running pump. If pressure in that point
is too low related to the mains pressure, check all
the air connections, especially the quick couplings.
Check that all the air control devices have
a sufficient flow rate. WARNING: In 90% of the cases
stall conditions depend on the quick couplings.
GB
Operating Instructions Diaphragm Pumps
