PTC HPP CLW HT Serie Anweisungen Seite 25

b) Take out the valves (3), being careful not to damage
them.
c) Check the condition of the components and replace
any worn ones.
d) Reassemble the valves, and always replace the
O-rings (4) and (5).
CAUTION
• At every disassembly operation, always replace the O-rings.
SPECIAL MAINTENANCE – REMOVING THE PUMPING ELEMENT
In case of leakage, replace the pressure seals.
With regard to component numbering, refer to the exploded drawing in Fig. 4.
a) Fully loosen the screws (6) and carefully remove the
head (7).
EN
25