E 710
AMD1 Diaphragm pump maintenance
G
B
00896
-
E
d
it
io
n
03
-
J
un
e
08
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 l6 mm flat wrench, fasten
the upper connector using the l4 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
Содержание ASM 142
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Страница 315: ...G 201 Wiring diagrams ASM 142 D index 1 2 ...