28
Dival SQD-1 - MT 234-E - 02-2020
EN
MAINTENANCE
16. Unscrew and remove the screw [48] and remove the flange [556]
Slam shut flange removal:
Fig. 31
To re-install the regulator you can carry out the operations described for the dismantling, in the opposite way.
Before re-installing the sustain elements (o-rings, membranes, etc…), it is necessary to check their integrity and if that
is the case to replace them. It is necessary to make sure that the membrane (209) is perfectly inserted in its seat and
that the movement of the shaft-obturator group shows no obstruction.
You have to be very careful in manipulating the valve seat (2), not to damage the sustain rims.
The internal regulation clamp (318) must be only partially activated.
The maintenance just of the regulation valve (balancing group 300 and valve seat 2) can be carried out without
having to intervene on the control head.
In this case, the operations to be followed start from position 9 after having implemented the position 1 opera-
tion.
