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• All operations must be carried out by qualified personnel.
• Use gloves, goggles and acid-resistant clothing when disconnecting from the system and washing
the pump.
• Wash the pump before carrying out maintenance operations.
• Do not disperse the washing waste into the environment.
7.2 DISASSEMBLY
• Bolts are right thread type.
• Clean all the external surfaces of the pump using a damp cloth.
• Ball seats removal (for all models).
• Remove the delivery and intake manifolds removing the tightening bolts.
• Pull off the seats, the balls and the related cages.
• Check the condition of the gasket.
Diaphragm removal
• Remove the delivery and intake manifolds removing the tightening bolts.
• Remove the deposits from the internal surfaces.
• Remove the two pump casings.
• Remove the plates that lock the Diaphragm.
• Remove the Diaphragm and the related backing plates.
• If it would be necessary to disassemble the shaft, remove one of the two Diaphragm on air side and
then pull off the shaft.
Pneumatic distributor removal
• Slip off the pneumatic exchanger cap and the spool (if necessary use a M6 screw in order to slip off
the spool).
Art. 19060
• Remove the manifolds, pump casing and Diaphragm.
• Remove the bolts (pos.22) and divide the semi-central casing.
Art. 19061 / Art. 19062
• Remove the Seeger ring of the transverse sleeve of the central casing
• Overturn the pump and with the aid of a Ø 6 mm punch and a press, pull off the distributor (this
operation may be carried out with pump casings assembled, check that the tightening bolts of the
pump casings located on the upper area of the distributor to do not obstruct removal of the distri
butor).
• WARNING: the pneumatic distributor shall not be opened to prevent an incorrect reassembling that
may cause the pump to malfunction.
GB
Operating Instructions Diaphragm Pumps
