Maintenance and Servicing
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WARNING !
Renew defective parts, if necessary! Wear protective gloves!
Parts must be renewed at the intervals stated in this Operating Manual or as speci-
fied by the user internally!
Do not clean with compressed air!
6.2.2.2
Assembly
(see Fig. 8)
1. Place the pump so that the diaphragm
(6)
is lying in a horizontal position.
2. Tighten the diaphragm
(6)
with the torque of
5 - 6
Nm.
3. Bring the connecting rod
(see Fig. 10)
and the diaphragm
(6)
into the central position.
4. Replace the pump head
(5)
.
5. Insert the valves
(4)
and the o-rings
(3)
. Ensure that they are lying completely flat.
Do not insert the burred side facing the sealing surface.
6. Replace the connecting head
(2)
and tighten the 2 x 4 cross head screws
(1)
with
a torque of 3 - 4 Nm.
7. Use an analogue assembly sequence for all heads.
8. Reattach the hose connections with clamping ring screw fittings.
9. Close the casing by shutting the cover.
6.2.2.3
Test
Connect the pump to the electrical supply.
Connect a vacuum measuring device to the suction connector and measure the ultimate
pressure.
If the device is working properly, then the figure stated in the technical data must be at-
tained within a maximum of one minute.
The pump must not make any abnormal noises.
Moving parts must not touch each other.
6.2.3
Maintenance of other components
Check that the glass components
are undamaged cleaned and if necessary replace.
Empty the secretion glass container
in a timely manner.
(Observe all disposal specifications as applicable to hazardous substances!)
Check screw connections for tightness and tightened when necessary.
Check vacuum hoses for leaks and, if necessary, replace them.
Check for leaks and, if necessary, replace the formed gasket located at the head piece of
the drip pan.
Change the PTFE filter and/or Inline filter at regular, defined intervals.
Test performance of the quick-fitting couplings with shut-off valves.
