Imovilli Pompe S.r.l.
Reggio Emilia – Italy
www.imovillipompe.it
Manuale d’officina – Pompe a membrana 3/11
3.2 Reposition the A-M valves in the head following
the original scheme. We remind you that for the
M25-29-35-60 pumps, the Intake valves must be
placed (with the real cap towards the diaphragm)
in the deepest seat; the opposite for those of
Delivery. The covers must be positioned
accordingly. Make sure that the tooth on the lid is
to be placed in its housing compartment in the
head. For M30-50 the intake valves must be
inserted with the cap towards the diaphragm in the
head housing on the shaft side, those on the
reverse side. For M73, follow the indication on
manifold cover A (intake) M (delivery). For
M104S-135S, follow the indication on the IN
pump casing (OUT).
3.3 Tighten the screws of the covers in a crisscrossed
and homogeneous way, respecting the tightening
torques (see tightening torques tab)
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