XLC 420
10
4- Separate the intermediate body (29) from the lower body (22) paying attention not to damage
the o-ring (30)
5- Check the surf
ace of the seat (31) making sure it hasn’t been damaged or scratched
6- Holding the gasket container (39), using an aluminum vise or with buffers in order not to damage
or scratch the material, with a monkey wrench 13 unscrew the tightening nut (12) to remove the
upper flat (10) and the diaphragm (11).
7- With a monkey wrench 24 remove the lower tap (16) and clean it checking for possible dirt or
debris , pay attention not to damage the o-ring (17)
8- Check the plane gasket (28) and, if damaged, contact us for further assistance.
Inspection and repair
During these operations carefully check every detail to find damage, in particular the
diaphragm and the sealing seat gasket. The pilot is very sturdy and the materials are
designed to guarantee many years of working conditions for which, generally, it is
sufficient to remove the deposits and make sure to keep the metallic internal components
properly lubricated. If that is not enough we strongly recommend you to contact us technical
support or order the maintenance kit.
Reassembly
To reassembly the pilot you have to repeat, obviously in reverse sequence, the same steps
specified in the dismantling phase, while paying attention to:
- Not to exert excessive torque on the locking nuts and upper flats so as not to wear the internal
components, please contact us for any doubt related to the torque required to perform the
operation.
- Insert the o-rings back to their position properly lubricated
- Set the screws tight using a criss-cross pattern
