Imovilli Pompe S.r.l.
Reggio Emilia – Italy
www.imovillipompe.it
Manuale d’officina – Pompe a membrana 8/11
8.2 For pumps with a through shaft
- Protect the oil seal with bush (available on request, see
photo point 8.1)
- - Tap with a plastic hammer on the shaft of the
opposite side until the shaft is removed, remembering
the assembly direction.
- - Disconnect the connecting rings of the connecting
rods making sure that there are any spacers or
shoulder rings (remember the position) and extract
connecting rods + pistons.
- Disassemble the bearings and proceed with a more
blowing and blowing of the components, proceeding
to check them.
- The pistons, the segments, the connecting rods, if
grooved in the part in contact with the shaft, the
bearings, the connecting rod connecting rings, if worn
or scored, must be replaced.
8.3 Pump shaft control
Check the condition of the surface where the
connecting rods work, which must not have any
grooves or metal (of connecting rods) incorporated.
Before replacing it, try to clean it with a very fine
abrasive paper (800). If the result is not positive,
replace it. Also check that there are no deep
grooves in the area where the oil seals works due to
the dust deposited outside the oil seals during
operation.
In this case the shaft must be replaced.
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