Case 580SR Service Manual page 688

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Support the cylinder rod (1).
Unscrew and remove the safety screw (6). Use the
wrench 380000726 to loose the cylinder head (7).
If necessary gently heat the gland carrier to soften
the thread sealant applied during manufacture.
Extract the cylinder head (7) from the cylinder barrel
(14) by tapping it with a plastic hammer. Remove the
cylinder rod (1) and the cylinder head (7).
IMPORTANT: be sure to pull the cylinder rod (1)
straight so as not to damage the sliding surfaces.
Loosen and remove the screw (13). Extract the pis-
ton (12) and the cylinder head (7) from the cylinder
rod (1).
Only if necessary:
Z remove the wiper ring (2), the seal rings (3) and (4),
the guide bush (5), the O-ring (9) with the back-up
ring (8) from the cylinder head (7);
Z remove the piston guide ring (11) and the piston
seal (10) from the piston (12).
SECTION 35 - HYDRAULIC SYSTEM
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