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Stick cylinder will not operate
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Loose connections or leaks.
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Repair. Tighten fittings or replace hoses.
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Pilot oil is not available at stick pilot valve (joystick).
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Repair pilot system.
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Pilot oil is not available at the control valve.
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Repair/replace joystick pilot valve.
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Main and port relief valves malfunctioning or incorrectly adjusted.
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Adjust, repair, replace valves.
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Seized spool in control valve.
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Repair/replace valve.
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Worn or damaged seals in cylinders.
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Repair/replace cylinders or seals.
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