35
Installation, Operation and Maintenance Manual
MAN616_EAC Rev. 5
July 2020
Section 5: Maintenance
Maintenance
5.2.1.2
Cylinder Reassembling
1.
Carefully clean the inside of the tube (19) 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. Slide the tube onto the piston taking care not to
damage the piston O-ring (49) and the head flange O-ring (47).
2.
Assemble the end flange by centering it on the inside diameter of the tube, taking
care not to damage the O-ring (47).
3.
Assemble the washer (24) and the nuts (16) onto the tie rods (18). Tighten the nuts
to the recommended torque, alternating between opposite corners.
4.
Screw the stop screw (26) into the threaded hole of the end flange until it reaches
its original position (the same protrusion with reference to the flange surface).
To make the operation easier feed the pneumatic cylinder with air (if possible) in
order to compress the spring.
5.
Tighten the lock nut (25).
NOTICE
After maintenance operations carry out a few actuator operations (5-10) to check that its
movement is regular, that there is no air leakage through the seals and to to eliminate any oil
residues in the air circuit, deriving from the lubrication of the seals during the replacement phase.