Case 580SR Service Manual page 676

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Support the cylinder rod (3).
Unscrew and remove the safety screw (8). Use the
wrench 380000724 to loose the cylinder head (9).
If necessary gently heat the gland carrier to soften
the thread sealant applied during manufacture.
Extract the cylinder head (9) from the cylinder barrel
(17) by tapping it with a plastic hammer. Remove the
cylinder rod (3) and the cylinder head (9).
IMPORTANT: be sure to pull the cylinder rod (3)
straight so as not to damage the sliding surfaces.
Loosen and remove the screw (16) with the washer
(15). Extract the piston (14) and the cylinder head (9)
from the cylinder rod (3).
Only if necessary:
Z remove the wiper ring (4), the seal rings (5) and (6),
the guide bush (7) and the back-up ring (10) with
the O-ring (11) from the cylinder head (9);
Z remove the piston guide rings (13) and the piston
seal (12) from the piston (14).
SECTION 35 - HYDRAULIC SYSTEM
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