Like BB says. The orbitrol beneath the steering hand wheel will probably have 4 lines. One each to both sides of steer cylinder , one low pressure hose the ends up dumping back to tank and then the pressure line you are looking for. It will either go to the main hydraulic valve, a priority valve or the pump (it could have a dedicated ps pump).
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.