Reassembling The Head - Valve Units - Interpump Group Pratissoli KS Serie Manual De Reparación

If removing the outlet and suction valve unit proves
to be particularly difficult (for example because
of incrustations due to prolonged inactivity of
the pump), use the extractor tool (code 27516900
combined with the tool code 26019400, Fig. 36/a).
- Disassemble the suction and outlet valve units, screwing a
sufficiently long M10 screw in such a way as to be able to
reach the valve plate and extract the valve guide from the
valve seat (Fig. 37, pos. ).
2.2.2 Reassembling the head – valve units
Pay particular attention to the conditions of the
various components and replace if necessary,
and at the intervals indicated in the "PREVENTIVE
MAINTENANCE" table in chapter 11 of the Use and
maintenance manual.
At every valve inspection, replace all O-rings and
all anti-extrusion rings both in the valve units
and on the valve plugs.
CODE 26019400
CODE 27516900
To reassemble the various components, perform the
Fig. 36/a
operations listed above in reverse order to par. 2.2.1, taking
particular care with the following:
Fig. 37
26
Before repositioning the valve units, thoroughly
clean and dry the relative seats in the head as shown
in Fig. 38.
Do not invert the suction springs with the
previously disassembled outlet springs during
assembly of the suction and outlet valve units
(Fig. 39 - Fig. 40 - Fig. 40/a):
A) "White" suction springs.
B) "Black" outlet springs.
Fig. 38
Fig. 39
Fig. 40