My stbalizating jack has been slow for years.Now it won't retract at all without help from a small floor jack. Camping world said I need a new jack they would check the Mfg and call me back.. Nary a ...
To make sure its the cyl. just loosen the hyd. line at the top. That separates the system from the cly. If it goes up with the hose loose , its the system, if not its the cyl. Still the springs will play a part but you can tell if it makes it easier to push up. MOHO