HPP ET Serie Instrucciones Para El Ensamblaje Y Mantenimiento página 38

In case of leakage, replace the pressure seals.
a) Take off the head (A) from
the casing (B), following the
sequence below:
Operation "1"
loosen the 4 screws (C) (Allen
key 12) and the 8 screws (D)
and (E) (Allen key 10) with one
turn of a key.
Operation "2"
completely unscrew the 8
screws (D) and (E) (Allen key
10).
Carefully remove the head (A).
b) Remove the piston sealing
units.
38
SPECIAL MAINTENANCE – REMOVING THE PUMPING ELEMENT
Operation "1"
Operation "2"
Fig. 14
Fig. 15