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Installation, Operation and Maintenance Manual
MAN 564_EAC Rev. 2 June 2020
Maintenance
Section 5: Maintenance
5. Carefully clean the inside of the tube (item 12) and check that the entire surface,
particularly that of the bevels, is not damaged. Lubricate with protective oil lm
the tube inside surface and the bevels at the ends. Slide the tube onto the piston
taking care not to damaged the Teon seal ring (item 9): the tube bevel has to
smoothly compress the seal ring.
6. Take care also not to damage the head ange O-ring (item 3).
7. Assemble the end ange (item 13) by centring it on the inside diameter of the
tube, taking care not to damage the O-ring (item 3).
8. Assemble the washers (item 15) and the nuts (item 16) onto the tie rods (item 10).
Tighten the nuts to the recommended torque, alternating between opposite
corners.
9. Restore a generous coating of grease on the contact surfaces of the yoke
(item 11 - Figure 39) and the bushings (item 13 - Figure 39), on the yoke grooves,
on the sliding blocks (item 5 - Figure 39), on guide bar (item 9 - Figure 39).
10. Assemble the new gasket (item 36 - Figure 39) after cleaning the surfaces of the
housing (item 8 - Figure 39) and cover (item 1 - Figure 39)
11. Lubricate with protective oil the O-ring (item 32 - Figure 39).
12. Assemble the cover (item 1 - Figure 39) and the screws (item 2 - Figure 39).
Tighten the screws to the recommended torque.
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 eliminate
any oil residues in the air circuit, deriving from the lubrication of the seals during the
replacement phase.
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