Check
valve
reassembly
(ctd)
n
Position
the new adjusting valve in the head covers.
n
Take
care to
observe
their position
(see
photo).
n
Position
the casing cover on the casing, shaking it slightly to ensure
that the head
covers
are positioned correctly.
n
Fasten
the six CHc M5
-
20
screws
in contact diagonally and then
tighten: the
maximum
torque to be applied is 6 Nm
.
Assembly
direction of the
valves
on
the head covers
Note: At the end of tightening of the casing cover
attachment
screws,
the cover
must
not be in contact with the casing.
Connector reassembly
CAUTION
When
disassembling
and
reassembling
the
connectors,
be
careful not to damage the aluminium threading.
Ensure
a
good position of the first nut of the
connector
when fastening
by hand, before using the wrench.
Always
use
2 flat
wrenches
to fasten the banjo fittings.
n
While holding the banjo fitting using the
l
6
mm flat wrench, fasten
the upper
connector
using the
l
4
mm flat wrench.
n
Perform
the
same
procedure for the lower connector.
Reassembling
the
pump on its support
n Check that the
ultimate pressure
of the diaphragm pump is lower
than 2 mbar.
Refer
to
B
30
(User’s
Manual of diaphragm pumps).
n
Install
the diaphragm pump on its support.
n
Connect
the inlet port according to the installation.
n
Connect
the
exhaust
port (if necessary).
CAUTION
If the ultimate
pressure
is not reached:
- After diaphragm and valve
replacements,
a running in
period of
some
hours is
necessary
before reaching the
ultimate pressure.
- After the running in period, if the ultimate
pressure
is
2 mbar different from the
technical
data,
check
the leaks on
pipes between the different
stages
and connectors.
4
/4
To Next Page
Loading...
