Technical manual
MT 208-E
21
18) Unscrew and remove the fixing nut of the valve seat group to the
valve body
19) Separate the valve seat group from the valve body and the
diaphragm support
20) Unscrew the valve seat from the valve seat group
21) Remove the valve seat and the inside components
(
3) valve seat group, (38) valve seat,(39) modular piston,(40)
guide,(41) connector, (42) cylindrical pin.
(28 – 29 – 50 – 51 – 52) O-ring
22) Carefully check the good conditions of the valve seat and
particularly of the modular piston
23) Replace all components being part of the Replacement Kit
To reassemble the pilot you can run the other way around the
operations described for the disassembling process.
Peculiar Notes
A)
In disassembling and reassembling the valve seat group
please ensure that the valve seat does not get bruised.
B)
In reassembling the mobile group please ensure that the
diaphragm support is centered with the valve seat group.
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