Installation, Operation and Maintenance Manual
MAN 573 Rev. 8
July 2020
Reassemble
1.
Assemble the new cylinder gasket (7) on its seat on the end flange (4).
2.
Carefully clean the inside of the tube (13) and check that the entire surface, particularly that of
the bevels, is not damaged. Lubricate the inside surface of the tube and the bevels at the ends.
3.
Spread some sealant LOCTITE 510, or equivalent, on the cylinder tube end (13), which is
connected to the spacer tube (33).
4.
Slide the cylinder tube (13) onto the piston taking care not to damage the piston O-ring (24).
5.
Assemble the end flange (4) centring it on the tube (13). Assemble the nuts (25) onto the
tie rod (14). Tighten the nuts to the recommended torque (see Table), alternating between
opposite corners. Screw the travel stop screw into the threaded hole of the end flange until
it reaches its original position (the same protrusion with reference to the flange surface).
6.
Check that the sealing washer (17) and the washer (28) are in contact with the end
flange surface.
7.
Tighten the locknut (10).
Seals replacement
Prior to reassemble check that the actuator components are in good conditions and clean.
Lubricate all the surfaces of the parts, which move in contact with other components, by
recommended grease
(AGIP-ENI LCX 2/32 if seals are in NBR/Viton or Neoprene rubber, or with
Aeroshell Grease 7 if the seals are in Fluorosilicon rubber)
. If the O-ring must be replaced, remove
the existing one from its groove, clean the groove carefully and lubricate it with protective grease film.
Assemble the new O-ring into its groove and lubricate it with a protective grease film.
1.
Replace the O-ring (24) and the piston guide sliding ring (20).
2.
Remove the existing gasket (7) from its seat in the end flange (4).
3.
Carefully clean the seat of the gasket in the end flange (4) and the plane surface, of the tube
end (13), which is in contact with the gasket (7).
4.
Carefully clean the ends of the cylinder tube (13) and of the spacer tube (33), which must fit
together, to remove any trace of the sealant which assures tightness.
5.
Remove the sealing washer (17) from the travel stop screw (30). Carefully clean and
lubricate the travel stop screw thread and the surface of the end flange area, where the
sealing washer is.
6.
Screw the new sealing washer onto the travel stop until it is in contact with the nut (10).
7.
Assemble the washer (28) onto the sealing washer (17).
Maintenance
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Section 5: Maintenance
