Case 580SR Service Manual page 674

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84 SECTION 35 - HYDRAULIC SYSTEM
Loosen and remove the nut (1) and the screw (2).
Slide out the rod pin (3) with an hammer.
If necessary, use hydraulic power to very slowly re-
tract the cylinder. In this way, the rod moves away
from the attaching point.
Disconnect the hydraulic hoses. Loosen and remove
the screw (4). Slide out the rod pin (5) with an ham-
mer.
The tube end of the dipper cylinder and rod end of
the boom cylinder use a common pin (5).
Therefore before shifting the dig cylinder, support
the boom cylinder with a rope or an hoist.
Remove the backhoe dipper cylinder.