Maintenance and Servicing
7.2.1.1 Disassembly
•
Disconnect the power supply and ensure that it cannot be switched on again.
•
Open the cover of the casing at the following operational sequence:
1.
Release the suction and pressure
side connections to the pump.
Remove the holding bracket
(A)
with the separator.
2. Remove the elbow unions
(B)
.
3. Loosen at the device lower surface
the four cross-head M4
(C)
.
4. Pull the hood off upwards, and
unplug the plug from the display
panel.
Fig. 7 Disassembly - lower surface casing
•
Open the screw clamps of the hose link on the pump bodies with the SW 14 open spanner.
•
Remove 2 x 4 screws
(1)
from each connecting head
(2)
with a cross-head screwdriver, size 2.
•
Lift off the connecting head
(2)
and the pump head
(5)
. The diaphragm is now freely exposed.
•
Loosen the defective diaphragm
(6)
by turning it anticlockwise.
•
Valves
(4)
(see fig. 9)
and o-rings
(3)
are located between the connecting and the pump head.
When dismounting both heads these parts are accessible.
•
Clean the valves
(4)
(see fig. 9)
, o-rings
(3)
and diaphragm
(6)
with a soft cloth and acetone and re-
place defective items if necessary.
Fig. 8 Disassembly, assembly
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.
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