Assembling The Piston Unit - Supports - Seals - Pratissoli MK Serie Manuel De Réparation

To remove the low pressure seal, use a thickness gauge or
another tool which will not damage the seal support housing
(pos. , Fig. 123).
2.2.4 Assembling the piston unit – supports – seals
Proceed with reassembly following the reverse order indicated
in par. 2.2.3.
Replace the pressure seals moistening the lips with
silicone grease (without spreading it), taking extra
care not to damage them during liner insertion.
The O-rings and the pressure seals must be
replaced at each disassembly.
Insert the low pressure seal in the seal support (pos. ,
Fig. 124) paying attention to the mounting direction which
requires that the sealing lip be set forward (towards the head).
Install the head ring (pos. , Fig. 125), the high pressure seal
(pos. , Fig. 126) and the restop ring (pos. , Fig. 127).
Fig. 122
Fig. 123
Fig. 124
63
Fig. 125
Fig. 126
Fig. 127