Reassembly Of The Head - Valve Units - Interpump Group KT-WK Serie Manual De Reparación

Disassemble the suction and outlet valve units, screwing a
sufficiently long M8 screw in such a way as to be able to reach
the valve plate and extract the valve guide from the valve seat
Fig. 22, pos. ).
If the M8 threaded holes should not be present on the valve
guide, dismantling can be easily carried out by levering with
simple tools (Fig. 23).
If the suction valve seats remain stuck on the
head (for example scaling due to a prolonged
pump inactivity), operate as follows:
- For KT 16-KT 19 versions use tools
code 26019400, code 27513700, code 27513400,
(Fig. 24).
- For KT 20-22 versions use tools code 26019400,
code 27513500, code 27513400, (Fig. 24/a).
Note. Before extracting from the seats, always unscrew the
handle code 27513400.
code 26019400
code 27513700 = KT16-19
Fig. 21
code 27513500 = KT20-22
code 27513400
code 27513400
Fig. 22
2.2.2 Reassembly of 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
Fig. 23
anti-extrusion rings both in the valve units and on
the valve plugs.
21
Fig. 24
Fig. 24/a