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Disassembly / Reassembly Operation
40
Lower valve (REXSH0715-
-
-FP-
)
Unsrew the nut (45), take off the washer (44)
take off the shovel (46), the closing washer (43) and the
shovel spacer (42),
Unscrew the filling tube (31),
Take off the seat (40), and the 2 seals (39),
Unscrew the nut (39),
Unscrew the lower body (21),
Retrieve the valve stop (24),
Retrieve the spacer (42),
Take off and check the seat (30), change it if necessary,
Take off and check the seal (18), change it if necessary,
Take off and check the first seal (9), change it if necessary,
Unscrew the cylinder (10),
Loosen the gland nut (5),
Take out the equipped piston rod (15) downwards,
Take off the pin (23), unscrew the shovel rod (31),
Take off the gland nut (27),
Take off, check and rplace if necessary,
Remove, check, replace if necessary in the following order:
-
the first “M” washer (25),
-
the first 5 seals (26),
-
the spacer (47),
-
the last seal (26),
-
the second “M” washer (25)
Remove the lower valve (28)
Nota : Check the seat (30.) In the event of damage to the
seat, the change of this the last one always leads to the
replacement of the valve (28).