page 52 of 58
➨
Use a 5 mm wide Allen key to remove the drain plug (note O-ring fitted
on drain plug). Drain condensate from catchpot.
➨
Position the pump on the side so that it rests on the side with the power
switch. Remove the Allen screws (5 mm wide Allen key) and remove
the catchpot (note sealing ring).
➨
Using a 5 mm wide Allen key, remove the Allen screw in the center
of the bottom filter thrust plate. Remove the filter element, both filter
thrust plates, and the top O-ring.
+
Clean or replace the filter element. Dispose of oil and filter element in
accordance with regulations.
➨
Assemble again in reverse order. Make sure that the O-ring and the
sealing ring are correctly seated.
distributor
block
➨
Remove four countersunk screws
and lift off the distributor block.
+
Note the valve’s position before re-
moving it. Replace the valve if it is
damaged.
➨
Assemble again in reverse order.
Safety pop valve
..........................................................................................
638836
Filter element FO DN 10
.............................................................................
640187
If the pump does not achieve the ultimate vacuum:
- Whenever the diaphragms and valves have been replaced, a break-in
period of several hours is required before the pump achieves its ulti-
mate vacuum.
- In case of an unusual noise, switch off pump immediately and check
clamping disc positions.
If the specified ultimate vacuum is not achieved, and if this does not
change after the break-in period:
Check hose connectors at pump heads for leaks. If necessary recheck
valve seats and pump chambers.
Replacing the filter element in the oil mist filter
Inspecting the safety pop valve
