Hi Bill, If it is a Diesel engine the hydraulic pump is at front right of engine, IIRC it is driven by cam gear. If you have power steering there will be two hydraulic pumps, second one is stacked behind the first one. Go to CaseIH parts at: http://www1.caseih.com/northamerica/PartsService/Pages/search.aspx then search for 434 page 5-14 shows hydraulic pump and plumbing. Is it cold where you live? Since it stopped working all of a sudden, I would suspect ice somewhere. When we had a 434 with a 1501 loader and it was -30F sometimes the hydraulic controls for the loader would freeze and stop working.
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Today's Featured Article - Memories of a Farmall C - by Monty Bradley. When I was a child, my grandparents lived on a farm owned by a Mr. Walters. The crops raised were cotton and soybeans, with about forty head of mixed breed cattle. Mr. Walters owned two tractors then. A Farmall 300 on gasoline and a Farmall C, that had once belonged to his father-in-law, and had been converted from gasoline to LP Gas. Many times, as a small boy, I would cross the fence behind the house my grandparents lived in and walk down the turn row to where granddaddy would be cultivati
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